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build(deps): bump check-spelling/check-spelling from 0.0.19 to 0.0.21 #3

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@dependabot dependabot bot commented on behalf of github Nov 29, 2022

Bumps check-spelling/check-spelling from 0.0.19 to 0.0.21.

Release notes

Sourced from check-spelling/check-spelling's releases.

Release 0.0.21

⏩ Upgrading

  • 🏷️ You can just change your workflow tags/references to this release, but some features require updates to the workflow (including sarif output and binary file detection); please consider applying the workflow from check-spelling/spell-check-this@prerelease. (The link will change shortly after this release is made.)
    • You will want to copy over the with: elements you're using (into each place that uses: check-spelling/check-spelling).

🐣 Breaking Changes

🗜️ Smaller cspell dictionaries

Background

There are 3 related configuration items:

  • dictionary_source_prefixes
    • In v0.0.20, this had: "cspell": "https://raw.githubusercontent.com/check-spelling/cspell-dicts/v20220427/dictionaries/"
    • In v0.0.21, it has: "cspell": "https://raw.githubusercontent.com/check-spelling/cspell-dicts/v20220816/dictionaries/"
  • extra_dictionaries
  • check_extra_dictionaries
    • The list has changed between v0.0.20 and v0.0.21, a bunch have moved, some have split, and a bunch have been added.

Migrating

You can migrate in a couple of ways:

  • Assuming you haven't set dictionary_source_prefixes, you can temporarily clear extra_dictionaries and check_extra_dictionaries and then use one run to get a new set of recommended extra_dictionaries and then set check_extra_dictionaries (typically to '').
  • If you want to keep your current cspell extra_dictionaries, change cspell to cspell_old (or anything that isn't cspell) and set dictionary_source_prefixes to something like this: {"cspell": "https://raw.githubusercontent.com/check-spelling/cspell-dicts/v20220816/dictionaries/", "cspell_old": "https://raw.githubusercontent.com/check-spelling/cspell-dicts/v20220427/dictionaries/"}.

Note that the main branch for check-spelling/cspell-dicts will move (roughly at the time of the v0.0.21 release and again for future releases).

🧗 act

Some changes in how the action works require actions/download-artifact and actions/upload-artifact which aren't generally supported by act. It might be possible to use --artifact-server-path, but I don't know how to do it.

Mitigation

You can apply changes equivalent to the changes to .github/workflows/spelling.yml to your workflow. This should enable the act workflows to conspire to share data between jobs. Alternatively, you could remove post_comment: 0 from your spelling job. And that should result in a report.

The log will include a base64 encoded zip file along with instructions to decode it and a command that will let you feed the file to apply.pl to apply its suggestions.

🏛️ Behavior change: File line column notation

Log output will now use a format like .github/workflows/spelling.yml:54:9 ... 21 to report problems. This should be friendlier to automated tools. Anyone who had written their own code to parse the old format will need to adjust their tooling. I don't expect this to be a big concern.

✨ New features

... (truncated)

Commits
  • d7cd297 Release 0.0.21
  • 388a389 Refactor wrap_in_json / wrap_file_in_json
  • df9612f Ignore files with newlines in their names
  • 91d4beb Quote things
  • 312d342 Handle act 0.2.33 github.action_repository behavior
  • e6a8467 Handle act 0.2.33 GITHUB_JOB behavior
  • fcf8407 Expose artifact.zip to act
  • a205652 Handle malformed GITHUB_REPOSITORY
  • e782d89 Trap missing $counter_summary_file
  • 44cf90d Use emoji near Previously acknowledged for email
  • Additional commits viewable in compare view

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Bumps [check-spelling/check-spelling](https://github.com/check-spelling/check-spelling) from 0.0.19 to 0.0.21.
- [Release notes](https://github.com/check-spelling/check-spelling/releases)
- [Commits](check-spelling/check-spelling@v0.0.19...v0.0.21)

---
updated-dependencies:
- dependency-name: check-spelling/check-spelling
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
@dependabot dependabot bot added dependencies Pull requests that update a dependency file github_actions Pull requests that update GitHub Actions code labels Nov 29, 2022
@github-actions
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github-actions bot commented Nov 29, 2022

@check-spelling-bot Report

Unrecognized words, please review:

  • builddeb
Previously acknowledged words that are now absent AUTHIP CIDR NOTAUTH pieter weightparams
To accept these unrecognized words as correct (and remove the previously acknowledged and now absent words), run the following commands

... in a clone of the [email protected]:jsoref/pdns.git repository
on the dependabot/github_actions/check-spelling/check-spelling-0.0.21 branch:

update_files() {
perl -e '
my @expect_files=qw('".github/actions/spell-check/expect.txt"');
@ARGV=@expect_files;
my @stale=qw('"$patch_remove"');
my $re=join "|", @stale;
my $suffix=".".time();
my $previous="";
sub maybe_unlink { unlink($_[0]) if $_[0]; }
while (<>) {
if ($ARGV ne $old_argv) { maybe_unlink($previous); $previous="$ARGV$suffix"; rename($ARGV, $previous); open(ARGV_OUT, ">$ARGV"); select(ARGV_OUT); $old_argv = $ARGV; }
next if /^(?:$re)(?:(?:\r|\n)*$| .*)/; print;
}; maybe_unlink($previous);'
perl -e '
my $new_expect_file=".github/actions/spell-check/expect.txt";
use File::Path qw(make_path);
use File::Basename qw(dirname);
make_path (dirname($new_expect_file));
open FILE, q{<}, $new_expect_file; chomp(my @words = <FILE>); close FILE;
my @add=qw('"$patch_add"');
my %items; @items{@words} = @words x (1); @items{@add} = @add x (1);
@words = sort {lc($a)."-".$a cmp lc($b)."-".$b} keys %items;
open FILE, q{>}, $new_expect_file; for my $word (@words) { print FILE "$word\n" if $word =~ /\w/; };
close FILE;
system("git", "add", $new_expect_file);
'
}

comment_json=$(mktemp)
curl -L -s -S \
  --header "Content-Type: application/json" \
  "https://api.github.com/repos/jsoref/pdns/issues/comments/1329986133" > "$comment_json"
comment_body=$(mktemp)
jq -r .body < "$comment_json" > $comment_body
rm $comment_json

patch_remove=$(perl -ne 'next unless s{^</summary>(.*)</details>$}{$1}; print' < "$comment_body")
  

patch_add=$(perl -e '$/=undef;
$_=<>;
s{<details>.*}{}s;
s{^#.*}{};
s{\n##.*}{};
s{(?:^|\n)\s*\*}{}g;
s{\s+}{ }g;
print' < "$comment_body")
  
update_files
rm $comment_body
git add -u
If the flagged items do not appear to be text

If items relate to a ...

  • well-formed pattern.

    If you can write a pattern that would match it,
    try adding it to the patterns.txt file.

    Patterns are Perl 5 Regular Expressions - you can test yours before committing to verify it will match your lines.

    Note that patterns can't match multiline strings.

  • binary file.

    Please add a file path to the excludes.txt file matching the containing file.

    File paths are Perl 5 Regular Expressions - you can test yours before committing to verify it will match your files.

    ^ refers to the file's path from the root of the repository, so ^README\.md$ would exclude README.md (on whichever branch you're using).

@dependabot @github
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Author

dependabot bot commented on behalf of github Mar 9, 2023

Looks like check-spelling/check-spelling is up-to-date now, so this is no longer needed.

@dependabot dependabot bot closed this Mar 9, 2023
@dependabot dependabot bot deleted the dependabot/github_actions/check-spelling/check-spelling-0.0.21 branch March 9, 2023 15:42
jsoref pushed a commit that referenced this pull request Mar 15, 2023
The IO error was not always handled by the proper TCP thread, possibly
leading to a race condition where two TCP worker threads were touching
the same TCP connection object at the same time.
Technically the issue also exists for XFR responses, but these are
very unlikely to cross protocols. We are still applying the same fix.

The issue was introduced in 516a000.

This was reported by Thread Sanitizer:
```
2023-03-10T13:52:59.5959261Z WARNING: ThreadSanitizer: data race (pid=15423)
2023-03-10T13:52:59.5959559Z   Read of size 1 at 0x7b040000385c by thread T2 (mutexes: write M188):
2023-03-10T13:52:59.5960220Z     #0 IOStateHandler::isWaitingForRead() const /home/runner/work/pdns/pdns/pdns/dnsdistdist/./tcpiohandler-mplexer.hh:41:12 (dnsdist+0x2e2978)
2023-03-10T13:52:59.5961073Z     #1 IOStateHandler::update(IOState, std::function<void (int, boost::any&)>, boost::any, boost::optional<timeval>) /home/runner/work/pdns/pdns/pdns/dnsdistdist/./tcpiohandler-mplexer.hh:109:9 (dnsdist+0x2e2978)
2023-03-10T13:52:59.5961812Z     #2 IOStateHandler::reset() /home/runner/work/pdns/pdns/pdns/dnsdistdist/./tcpiohandler-mplexer.hh:59:5 (dnsdist+0x2ea4c6)
2023-03-10T13:52:59.5962451Z     #3 IOStateHandler::reset() /home/runner/work/pdns/pdns/pdns/dnsdistdist/./tcpiohandler-mplexer.hh:59:5 (dnsdist+0x2ea4c6)
2023-03-10T13:52:59.5963106Z     #4 IOStateHandler::~IOStateHandler() /home/runner/work/pdns/pdns/pdns/dnsdistdist/./tcpiohandler-mplexer.hh:31:7 (dnsdist+0x2ea2a4)
2023-03-10T13:52:59.5980185Z     #5 std::default_delete<IOStateHandler>::operator()(IOStateHandler*) const /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/unique_ptr.h:85:2 (dnsdist+0x2ea2a4)
2023-03-10T13:52:59.5981308Z     #6 std::__uniq_ptr_impl<IOStateHandler, std::default_delete<IOStateHandler> >::reset(IOStateHandler*) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/unique_ptr.h:182:4 (dnsdist+0x2ea0c3)
2023-03-10T13:52:59.5982163Z     #7 std::__uniq_ptr_impl<IOStateHandler, std::default_delete<IOStateHandler> >::reset(IOStateHandler*) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/unique_ptr.h:182:4 (dnsdist+0x2ea0c3)
2023-03-10T13:52:59.5983209Z     #8 std::unique_ptr<IOStateHandler, std::default_delete<IOStateHandler> >::reset(IOStateHandler*) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/unique_ptr.h:456:7 (dnsdist+0xb1eb8a)
2023-03-10T13:52:59.5984893Z     #9 IncomingTCPConnectionState::terminateClientConnection() /home/runner/work/pdns/pdns/pdns/dnsdistdist/dnsdist-tcp.cc:384:13 (dnsdist+0xb1eb8a)
2023-03-10T13:52:59.5985685Z     #10 IncomingTCPConnectionState::notifyIOError(InternalQueryState&&, timeval const&) /home/runner/work/pdns/pdns/pdns/dnsdistdist/dnsdist-tcp.cc:1111:12 (dnsdist+0xb29b13)
2023-03-10T13:52:59.5989279Z     #11 IncomingTCPConnectionState::notifyIOError(InternalQueryState&&, timeval const&) /home/runner/work/pdns/pdns/pdns/dnsdistdist/dnsdist-tcp.cc:1111:12 (dnsdist+0xb29b13)
2023-03-10T13:52:59.5990754Z     #12 dnsdist_ffi_drop_from_async /home/runner/work/pdns/pdns/pdns/dnsdistdist/dnsdist-lua-ffi.cc:931:11 (dnsdist+0x816ac7)
2023-03-10T13:52:59.5991305Z     #13 <null> <null> (0x7f3d3ad7fca3)
2023-03-10T13:52:59.5992209Z     #14 void LuaContext::call<void, unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&>(lua_State*, LuaContext::PushedObject, unsigned short&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) /home/runner/work/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp:1413:29 (dnsdist+0x5b31b5)
2023-03-10T13:52:59.5993583Z     #15 LuaContext::LuaFunctionCaller<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>::operator()(unsigned short&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) const /home/runner/work/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp:1983:16 (dnsdist+0x5b31b5)
2023-03-10T13:52:59.5998774Z     #16 void std::__invoke_impl<void, LuaContext::LuaFunctionCaller<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>&, unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&>(std::__invoke_other, LuaContext::LuaFunctionCaller<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>&, unsigned short&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/invoke.h:60:14 (dnsdist+0x5b2b24)
2023-03-10T13:52:59.6002652Z     #17 std::enable_if<is_invocable_r_v<void, LuaContext::LuaFunctionCaller<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>&, unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&>, void>::type std::__invoke_r<void, LuaContext::LuaFunctionCaller<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>&, unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&>(LuaContext::LuaFunctionCaller<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>&, unsigned short&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/invoke.h:110:2 (dnsdist+0x5b2b24)
2023-03-10T13:52:59.6006264Z     #18 std::_Function_handler<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&), LuaContext::LuaFunctionCaller<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)> >::_M_invoke(std::_Any_data const&, unsigned short&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/std_function.h:291:9 (dnsdist+0x5b2b24)
2023-03-10T13:52:59.6011711Z     PowerDNS#19 void std::__invoke_impl<void, LuaContext::LuaFunctionCaller<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>&, unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&>(std::__invoke_other, LuaContext::LuaFunctionCaller<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>&, unsigned short&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/invoke.h:60:14 (dnsdist+0x5b2b24)
2023-03-10T13:52:59.6015474Z     PowerDNS#20 std::enable_if<is_invocable_r_v<void, LuaContext::LuaFunctionCaller<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>&, unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&>, void>::type std::__invoke_r<void, LuaContext::LuaFunctionCaller<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>&, unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&>(LuaContext::LuaFunctionCaller<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>&, unsigned short&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/invoke.h:110:2 (dnsdist+0x5b2b24)
2023-03-10T13:52:59.6021250Z     PowerDNS#21 std::_Function_handler<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&), LuaContext::LuaFunctionCaller<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)> >::_M_invoke(std::_Any_data const&, unsigned short&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/std_function.h:291:9 (dnsdist+0x5b2b24)
2023-03-10T13:52:59.6023199Z     PowerDNS#22 std::function<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>::operator()(unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) const /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/std_function.h:622:14 (dnsdist+0x5b4099)
2023-03-10T13:52:59.6024946Z     PowerDNS#23 std::function<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>::operator()(unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) const /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/std_function.h:622:14 (dnsdist+0x5b4099)
2023-03-10T13:52:59.6031647Z     PowerDNS#24 std::function<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>::operator()(unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) const /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/std_function.h:622:14 (dnsdist+0x5b4099)
2023-03-10T13:52:59.6034121Z     PowerDNS#25 setupLuaBindingsNetwork(LuaContext&, bool)::$_4::operator()(std::shared_ptr<dnsdist::NetworkListener>&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned short, std::function<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>) const::'lambda'(unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)::operator()(unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) const /home/runner/work/pdns/pdns/pdns/dnsdistdist/dnsdist-lua-bindings-network.cc:73:9 (dnsdist+0x5b3f99)
2023-03-10T13:52:59.6041186Z     PowerDNS#26 void std::__invoke_impl<void, setupLuaBindingsNetwork(LuaContext&, bool)::$_4::operator()(std::shared_ptr<dnsdist::NetworkListener>&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned short, std::function<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>) const::'lambda'(unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)&, unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&>(std::__invoke_other, setupLuaBindingsNetwork(LuaContext&, bool)::$_4::operator()(std::shared_ptr<dnsdist::NetworkListener>&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned short, std::function<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>) const::'lambda'(unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)&, unsigned short&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/invoke.h:60:14 (dnsdist+0x5b3df8)
2023-03-10T13:52:59.6053139Z     PowerDNS#27 std::enable_if<is_invocable_r_v<void, setupLuaBindingsNetwork(LuaContext&, bool)::$_4::operator()(std::shared_ptr<dnsdist::NetworkListener>&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned short, std::function<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>) const::'lambda'(unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)&, unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&>, void>::type std::__invoke_r<void, setupLuaBindingsNetwork(LuaContext&, bool)::$_4::operator()(std::shared_ptr<dnsdist::NetworkListener>&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned short, std::function<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>) const::'lambda'(unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)&, unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&>(setupLuaBindingsNetwork(LuaContext&, bool)::$_4::operator()(std::shared_ptr<dnsdist::NetworkListener>&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned short, std::function<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>) const::'lambda'(unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)&, unsigned short&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/invoke.h:110:2 (dnsdist+0x5b3df8)
2023-03-10T13:52:59.6061003Z     PowerDNS#28 std::_Function_handler<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&), setupLuaBindingsNetwork(LuaContext&, bool)::$_4::operator()(std::shared_ptr<dnsdist::NetworkListener>&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned short, std::function<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>) const::'lambda'(unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>::_M_invoke(std::_Any_data const&, unsigned short&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/std_function.h:291:9 (dnsdist+0x5b3df8)
2023-03-10T13:52:59.6068262Z     PowerDNS#29 std::function<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>::operator()(unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) const /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/std_function.h:622:14 (dnsdist+0x8cad59)
2023-03-10T13:52:59.6070197Z     PowerDNS#30 std::function<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>::operator()(unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) const /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/std_function.h:622:14 (dnsdist+0x8cad59)
2023-03-10T13:52:59.6071860Z     PowerDNS#31 std::function<void (unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>::operator()(unsigned short, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) const /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/std_function.h:622:14 (dnsdist+0x8cad59)
2023-03-10T13:52:59.6072883Z     PowerDNS#32 dnsdist::NetworkListener::readCB(int, boost::any&) /home/runner/work/pdns/pdns/pdns/dnsdistdist/dnsdist-lua-network.cc:64:7 (dnsdist+0x8ca9e6)
2023-03-10T13:52:59.6076346Z     PowerDNS#33 void std::__invoke_impl<void, void (*&)(int, boost::any&), int, boost::any&>(std::__invoke_other, void (*&)(int, boost::any&), int&&, boost::any&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/invoke.h:60:14 (dnsdist+0x2efbf3)
2023-03-10T13:52:59.6077403Z     PowerDNS#34 std::enable_if<is_invocable_r_v<void, void (*&)(int, boost::any&), int, boost::any&>, void>::type std::__invoke_r<void, void (*&)(int, boost::any&), int, boost::any&>(void (*&)(int, boost::any&), int&&, boost::any&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/invoke.h:110:2 (dnsdist+0x2efb12)
2023-03-10T13:52:59.6078361Z     PowerDNS#35 std::_Function_handler<void (int, boost::any&), void (*)(int, boost::any&)>::_M_invoke(std::_Any_data const&, int&&, boost::any&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/std_function.h:291:9 (dnsdist+0x2ef949)
2023-03-10T13:52:59.6079161Z     PowerDNS#36 std::function<void (int, boost::any&)>::operator()(int, boost::any&) const /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/std_function.h:622:14 (dnsdist+0xc14f6c)
2023-03-10T13:52:59.6079696Z     PowerDNS#37 EpollFDMultiplexer::run(timeval*, int) /home/runner/work/pdns/pdns/pdns/dnsdistdist/epollmplexer.cc:190:9 (dnsdist+0xc4fc84)
2023-03-10T13:52:59.6080417Z     PowerDNS#38 dnsdist::NetworkListener::runOnce(timeval&, unsigned int) /home/runner/work/pdns/pdns/pdns/dnsdistdist/dnsdist-lua-network.cc:130:14 (dnsdist+0x8cba17)
2023-03-10T13:52:59.6081121Z     PowerDNS#39 dnsdist::NetworkListener::mainThread() /home/runner/work/pdns/pdns/pdns/dnsdistdist/dnsdist-lua-network.cc:139:5 (dnsdist+0x8cba17)
2023-03-10T13:52:59.6081918Z     PowerDNS#40 dnsdist::NetworkListener::start()::$_0::operator()() const /home/runner/work/pdns/pdns/pdns/dnsdistdist/dnsdist-lua-network.cc:146:5 (dnsdist+0x8cdffd)
2023-03-10T13:52:59.6089376Z     PowerDNS#41 dnsdist::NetworkListener::start()::$_0::operator()() const /home/runner/work/pdns/pdns/pdns/dnsdistdist/dnsdist-lua-network.cc:146:5 (dnsdist+0x8cdffd)
2023-03-10T13:52:59.6090276Z     PowerDNS#42 void std::__invoke_impl<void, dnsdist::NetworkListener::start()::$_0>(std::__invoke_other, dnsdist::NetworkListener::start()::$_0&&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/invoke.h:60:14 (dnsdist+0x8cdfc5)
2023-03-10T13:52:59.6091963Z     PowerDNS#43 std::__invoke_result<dnsdist::NetworkListener::start()::$_0>::type std::__invoke<dnsdist::NetworkListener::start()::$_0>(dnsdist::NetworkListener::start()::$_0&&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/invoke.h:95:14 (dnsdist+0x8cdf95)
2023-03-10T13:52:59.6093040Z     PowerDNS#44 void std::thread::_Invoker<std::tuple<dnsdist::NetworkListener::start()::$_0> >::_M_invoke<0ul>(std::_Index_tuple<0ul>) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/thread:264:13 (dnsdist+0x8cdf6c)
2023-03-10T13:52:59.6096527Z     PowerDNS#45 std::thread::_Invoker<std::tuple<dnsdist::NetworkListener::start()::$_0> >::operator()() /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/thread:271:11 (dnsdist+0x8cdef5)
2023-03-10T13:52:59.6097439Z     PowerDNS#46 std::thread::_State_impl<std::thread::_Invoker<std::tuple<dnsdist::NetworkListener::start()::$_0> > >::_M_run() (.llvm.6599844077253043448) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/thread:215:13 (dnsdist+0x8cde39)
2023-03-10T13:52:59.6097887Z     PowerDNS#47 <null> <null> (libstdc++.so.6+0xda6b3)
2023-03-10T13:52:59.6098058Z
2023-03-10T13:52:59.6098203Z   Previous write of size 1 at 0x7b040000385c by thread T8:
2023-03-10T13:52:59.6098928Z     #0 IOStateHandler::update(IOState, std::function<void (int, boost::any&)>, boost::any, boost::optional<timeval>) /home/runner/work/pdns/pdns/pdns/dnsdistdist/./tcpiohandler-mplexer.hh:112:26 (dnsdist+0x2e29b1)
2023-03-10T13:52:59.6099813Z     #1 IncomingTCPConnectionState::handleIO(std::shared_ptr<IncomingTCPConnectionState>&, timeval const&) /home/runner/work/pdns/pdns/pdns/dnsdistdist/dnsdist-tcp.cc:1075:25 (dnsdist+0xb23c18)
2023-03-10T13:52:59.6100613Z     #2 IncomingTCPConnectionState::handleIOCallback(int, boost::any&) /home/runner/work/pdns/pdns/pdns/dnsdistdist/dnsdist-tcp.cc:827:3 (dnsdist+0xb246dd)
2023-03-10T13:52:59.6101492Z     #3 void std::__invoke_impl<void, void (*&)(int, boost::any&), int, boost::any&>(std::__invoke_other, void (*&)(int, boost::any&), int&&, boost::any&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/invoke.h:60:14 (dnsdist+0x2efbf3)
2023-03-10T13:52:59.6102502Z     #4 std::enable_if<is_invocable_r_v<void, void (*&)(int, boost::any&), int, boost::any&>, void>::type std::__invoke_r<void, void (*&)(int, boost::any&), int, boost::any&>(void (*&)(int, boost::any&), int&&, boost::any&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/invoke.h:110:2 (dnsdist+0x2efb12)
2023-03-10T13:52:59.6103665Z     #5 std::_Function_handler<void (int, boost::any&), void (*)(int, boost::any&)>::_M_invoke(std::_Any_data const&, int&&, boost::any&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/std_function.h:291:9 (dnsdist+0x2ef949)
2023-03-10T13:52:59.6104464Z     #6 std::function<void (int, boost::any&)>::operator()(int, boost::any&) const /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/std_function.h:622:14 (dnsdist+0xc14f6c)
2023-03-10T13:52:59.6105005Z     #7 EpollFDMultiplexer::run(timeval*, int) /home/runner/work/pdns/pdns/pdns/dnsdistdist/epollmplexer.cc:190:9 (dnsdist+0xc4fc84)
2023-03-10T13:52:59.6105772Z     #8 tcpClientThread(int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> >) /home/runner/work/pdns/pdns/pdns/dnsdistdist/dnsdist-tcp.cc:1318:21 (dnsdist+0xb1c132)
2023-03-10T13:52:59.6107243Z     #9 void std::__invoke_impl<void, void (*)(int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> >), int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> > >(std::__invoke_other, void (*&&)(int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> >), int&&, int&&, int&&, int&&, std::vector<ClientState*, std::allocator<ClientState*> >&&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/invoke.h:60:14 (dnsdist+0xb3d4d7)
2023-03-10T13:52:59.6109241Z     #10 std::__invoke_result<void (*)(int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> >), int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> > >::type std::__invoke<void (*)(int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> >), int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> > >(void (*&&)(int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> >), int&&, int&&, int&&, int&&, std::vector<ClientState*, std::allocator<ClientState*> >&&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/invoke.h:95:14 (dnsdist+0xb3c6a2)
2023-03-10T13:52:59.6110879Z     #11 void std::thread::_Invoker<std::tuple<void (*)(int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> >), int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> > > >::_M_invoke<0ul, 1ul, 2ul, 3ul, 4ul, 5ul>(std::_Index_tuple<0ul, 1ul, 2ul, 3ul, 4ul, 5ul>) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/thread:264:13 (dnsdist+0xb3c6a2)
2023-03-10T13:52:59.6112054Z     #12 std::thread::_Invoker<std::tuple<void (*)(int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> >), int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> > > >::operator()() /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/thread:271:11 (dnsdist+0xb3c6a2)
2023-03-10T13:52:59.6113226Z     #13 std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (*)(int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> >), int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> > > > >::_M_run() /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/thread:215:13 (dnsdist+0xb3c6a2)
2023-03-10T13:52:59.6113778Z     #14 <null> <null> (libstdc++.so.6+0xda6b3)
2023-03-10T13:52:59.6114055Z     #15 <null> <null> (libstdc++.so.6+0xda6b3)
2023-03-10T13:52:59.6114324Z     #16 <null> <null> (libstdc++.so.6+0xda6b3)
2023-03-10T13:52:59.6114574Z     #17 <null> <null> (libstdc++.so.6+0xda6b3)
2023-03-10T13:52:59.6114728Z
2023-03-10T13:52:59.6114889Z   Location is heap block of size 16 at 0x7b0400003850 allocated by thread T8:
2023-03-10T13:52:59.6115222Z     #0 operator new(unsigned long) <null> (dnsdist+0x184e96)
2023-03-10T13:52:59.6115982Z     #1 std::_MakeUniq<IOStateHandler>::__single_object std::make_unique<IOStateHandler, FDMultiplexer&, int&>(FDMultiplexer&, int&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/unique_ptr.h:962:30 (dnsdist+0xb343bf)
2023-03-10T13:52:59.6116940Z     #2 IncomingTCPConnectionState::IncomingTCPConnectionState(ConnectionInfo&&, TCPClientThreadData&, timeval const&) /home/runner/work/pdns/pdns/pdns/dnsdistdist/./dnsdist-tcp-upstream.hh:24:338 (dnsdist+0xb343bf)
2023-03-10T13:52:59.6118177Z     #3 void __gnu_cxx::new_allocator<IncomingTCPConnectionState>::construct<IncomingTCPConnectionState, ConnectionInfo, TCPClientThreadData&, timeval&>(IncomingTCPConnectionState*, ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/ext/new_allocator.h:150:23 (dnsdist+0xb33938)
2023-03-10T13:52:59.6119719Z     #4 void std::allocator_traits<std::allocator<IncomingTCPConnectionState> >::construct<IncomingTCPConnectionState, ConnectionInfo, TCPClientThreadData&, timeval&>(std::allocator<IncomingTCPConnectionState>&, IncomingTCPConnectionState*, ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/alloc_traits.h:512:8 (dnsdist+0xb33938)
2023-03-10T13:52:59.6121161Z     #5 void __gnu_cxx::new_allocator<IncomingTCPConnectionState>::construct<IncomingTCPConnectionState, ConnectionInfo, TCPClientThreadData&, timeval&>(IncomingTCPConnectionState*, ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/ext/new_allocator.h:150:23 (dnsdist+0xb33938)
2023-03-10T13:52:59.6122645Z     #6 void std::allocator_traits<std::allocator<IncomingTCPConnectionState> >::construct<IncomingTCPConnectionState, ConnectionInfo, TCPClientThreadData&, timeval&>(std::allocator<IncomingTCPConnectionState>&, IncomingTCPConnectionState*, ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/alloc_traits.h:512:8 (dnsdist+0xb33938)
2023-03-10T13:52:59.6124511Z     #7 std::_Sp_counted_ptr_inplace<IncomingTCPConnectionState, std::allocator<IncomingTCPConnectionState>, (__gnu_cxx::_Lock_policy)2>::_Sp_counted_ptr_inplace<ConnectionInfo, TCPClientThreadData&, timeval&>(std::allocator<IncomingTCPConnectionState>, ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/shared_ptr_base.h:551:4 (dnsdist+0xb335b1)
2023-03-10T13:52:59.6126190Z     #8 std::__shared_count<(__gnu_cxx::_Lock_policy)2>::__shared_count<IncomingTCPConnectionState, std::allocator<IncomingTCPConnectionState>, ConnectionInfo, TCPClientThreadData&, timeval&>(IncomingTCPConnectionState*&, std::_Sp_alloc_shared_tag<std::allocator<IncomingTCPConnectionState> >, ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/shared_ptr_base.h:683:6 (dnsdist+0xb335b1)
2023-03-10T13:52:59.6127835Z     #9 std::_Sp_counted_ptr_inplace<IncomingTCPConnectionState, std::allocator<IncomingTCPConnectionState>, (__gnu_cxx::_Lock_policy)2>::_Sp_counted_ptr_inplace<ConnectionInfo, TCPClientThreadData&, timeval&>(std::allocator<IncomingTCPConnectionState>, ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/shared_ptr_base.h:551:4 (dnsdist+0xb335b1)
2023-03-10T13:52:59.6129495Z     #10 std::__shared_count<(__gnu_cxx::_Lock_policy)2>::__shared_count<IncomingTCPConnectionState, std::allocator<IncomingTCPConnectionState>, ConnectionInfo, TCPClientThreadData&, timeval&>(IncomingTCPConnectionState*&, std::_Sp_alloc_shared_tag<std::allocator<IncomingTCPConnectionState> >, ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/shared_ptr_base.h:683:6 (dnsdist+0xb335b1)
2023-03-10T13:52:59.6131136Z     #11 std::__shared_ptr<IncomingTCPConnectionState, (__gnu_cxx::_Lock_policy)2>::__shared_ptr<std::allocator<IncomingTCPConnectionState>, ConnectionInfo, TCPClientThreadData&, timeval&>(std::_Sp_alloc_shared_tag<std::allocator<IncomingTCPConnectionState> >, ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/shared_ptr_base.h:1371:14 (dnsdist+0xb33357)
2023-03-10T13:52:59.6132660Z     #12 std::shared_ptr<IncomingTCPConnectionState>::shared_ptr<std::allocator<IncomingTCPConnectionState>, ConnectionInfo, TCPClientThreadData&, timeval&>(std::_Sp_alloc_shared_tag<std::allocator<IncomingTCPConnectionState> >, ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/shared_ptr.h:408:4 (dnsdist+0xb33357)
2023-03-10T13:52:59.6134205Z     #13 std::shared_ptr<IncomingTCPConnectionState> std::allocate_shared<IncomingTCPConnectionState, std::allocator<IncomingTCPConnectionState>, ConnectionInfo, TCPClientThreadData&, timeval&>(std::allocator<IncomingTCPConnectionState> const&, ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/shared_ptr.h:859:14 (dnsdist+0xb33357)
2023-03-10T13:52:59.6135927Z     #14 std::__shared_ptr<IncomingTCPConnectionState, (__gnu_cxx::_Lock_policy)2>::__shared_ptr<std::allocator<IncomingTCPConnectionState>, ConnectionInfo, TCPClientThreadData&, timeval&>(std::_Sp_alloc_shared_tag<std::allocator<IncomingTCPConnectionState> >, ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/shared_ptr_base.h:1371:14 (dnsdist+0xb33357)
2023-03-10T13:52:59.6137427Z     #15 std::shared_ptr<IncomingTCPConnectionState>::shared_ptr<std::allocator<IncomingTCPConnectionState>, ConnectionInfo, TCPClientThreadData&, timeval&>(std::_Sp_alloc_shared_tag<std::allocator<IncomingTCPConnectionState> >, ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/shared_ptr.h:408:4 (dnsdist+0xb33357)
2023-03-10T13:52:59.6139010Z     #16 std::shared_ptr<IncomingTCPConnectionState> std::allocate_shared<IncomingTCPConnectionState, std::allocator<IncomingTCPConnectionState>, ConnectionInfo, TCPClientThreadData&, timeval&>(std::allocator<IncomingTCPConnectionState> const&, ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/shared_ptr.h:859:14 (dnsdist+0xb33357)
2023-03-10T13:52:59.6140360Z     #17 std::shared_ptr<IncomingTCPConnectionState> std::make_shared<IncomingTCPConnectionState, ConnectionInfo, TCPClientThreadData&, timeval&>(ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/shared_ptr.h:875:14 (dnsdist+0xb3323c)
2023-03-10T13:52:59.6141560Z     #18 std::shared_ptr<IncomingTCPConnectionState> std::make_shared<IncomingTCPConnectionState, ConnectionInfo, TCPClientThreadData&, timeval&>(ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/shared_ptr.h:875:14 (dnsdist+0xb3323c)
2023-03-10T13:52:59.6142764Z     PowerDNS#19 std::shared_ptr<IncomingTCPConnectionState> std::make_shared<IncomingTCPConnectionState, ConnectionInfo, TCPClientThreadData&, timeval&>(ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/shared_ptr.h:875:14 (dnsdist+0xb3323c)
2023-03-10T13:52:59.6143631Z     PowerDNS#20 handleIncomingTCPQuery(int, boost::any&) /home/runner/work/pdns/pdns/pdns/dnsdistdist/dnsdist-tcp.cc:1164:18 (dnsdist+0xb30c93)
2023-03-10T13:52:59.6144480Z     PowerDNS#21 void std::__invoke_impl<void, void (*&)(int, boost::any&), int, boost::any&>(std::__invoke_other, void (*&)(int, boost::any&), int&&, boost::any&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/invoke.h:60:14 (dnsdist+0x2efbf3)
2023-03-10T13:52:59.6145171Z     PowerDNS#22 std::enable_if<is_invocable_r_v<void, void (*&)(int, boost::any&), int, boost::any&>, void>::type std::__invoke_r<void, void (*&)(int, boost::any&), int, boost::any&>(void (*&)(int, boost::any&), int&&, boost::any&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/invoke.h:110:2 (dnsdist+0x2efb12)
2023-03-10T13:52:59.6145727Z     PowerDNS#23 std::_Function_handler<void (int, boost::any&), void (*)(int, boost::any&)>::_M_invoke(std::_Any_data const&, int&&, boost::any&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/std_function.h:291:9 (dnsdist+0x2ef949)
2023-03-10T13:52:59.6146188Z     PowerDNS#24 std::function<void (int, boost::any&)>::operator()(int, boost::any&) const /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/std_function.h:622:14 (dnsdist+0xc14f6c)
2023-03-10T13:52:59.6146441Z     PowerDNS#25 EpollFDMultiplexer::run(timeval*, int) /home/runner/work/pdns/pdns/pdns/dnsdistdist/epollmplexer.cc:190:9 (dnsdist+0xc4fc84)
2023-03-10T13:52:59.6146930Z     PowerDNS#26 tcpClientThread(int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> >) /home/runner/work/pdns/pdns/pdns/dnsdistdist/dnsdist-tcp.cc:1318:21 (dnsdist+0xb1c132)
2023-03-10T13:52:59.6148031Z     PowerDNS#27 void std::__invoke_impl<void, void (*)(int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> >), int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> > >(std::__invoke_other, void (*&&)(int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> >), int&&, int&&, int&&, int&&, std::vector<ClientState*, std::allocator<ClientState*> >&&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/invoke.h:60:14 (dnsdist+0xb3d4d7)
2023-03-10T13:52:59.6149371Z     PowerDNS#28 std::__invoke_result<void (*)(int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> >), int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> > >::type std::__invoke<void (*)(int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> >), int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> > >(void (*&&)(int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> >), int&&, int&&, int&&, int&&, std::vector<ClientState*, std::allocator<ClientState*> >&&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/invoke.h:95:14 (dnsdist+0xb3c6a2)
2023-03-10T13:52:59.6150265Z     PowerDNS#29 void std::thread::_Invoker<std::tuple<void (*)(int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> >), int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> > > >::_M_invoke<0ul, 1ul, 2ul, 3ul, 4ul, 5ul>(std::_Index_tuple<0ul, 1ul, 2ul, 3ul, 4ul, 5ul>) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/thread:264:13 (dnsdist+0xb3c6a2)
2023-03-10T13:52:59.6150973Z     PowerDNS#30 std::thread::_Invoker<std::tuple<void (*)(int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> >), int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> > > >::operator()() /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/thread:271:11 (dnsdist+0xb3c6a2)
2023-03-10T13:52:59.6151745Z     PowerDNS#31 std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (*)(int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> >), int, int, int, int, std::vector<ClientState*, std::allocator<ClientState*> > > > >::_M_run() /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/thread:215:13 (dnsdist+0xb3c6a2)
2023-03-10T13:52:59.6151858Z     PowerDNS#32 <null> <null> (libstdc++.so.6+0xda6b3)
2023-03-10T13:52:59.6151978Z     PowerDNS#33 <null> <null> (libstdc++.so.6+0xda6b3)
2023-03-10T13:52:59.6152094Z     PowerDNS#34 <null> <null> (libstdc++.so.6+0xda6b3)
2023-03-10T13:52:59.6152209Z     PowerDNS#35 <null> <null> (libstdc++.so.6+0xda6b3)
2023-03-10T13:52:59.6152216Z
2023-03-10T13:52:59.6152326Z   Mutex M188 (0x55807ad82020) created at:
2023-03-10T13:52:59.6152457Z     #0 pthread_mutex_lock <null> (dnsdist+0x111876)
2023-03-10T13:52:59.6152906Z     #1 __gthread_mutex_lock(pthread_mutex_t*) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:749:12 (dnsdist+0x1af1df)
2023-03-10T13:52:59.6153271Z     #2 std::mutex::lock() /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/std_mutex.h:100:17 (dnsdist+0x1af1df)
2023-03-10T13:52:59.6153688Z     #3 std::lock_guard<std::mutex>::lock_guard(std::mutex&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/std_mutex.h:159:19 (dnsdist+0x2635f9)
2023-03-10T13:52:59.6153984Z     #4 LockGuardedHolder<LuaContext>::LockGuardedHolder(LuaContext&, std::mutex&) /home/runner/work/pdns/pdns/pdns/dnsdistdist/./lock.hh:209:60 (dnsdist+0x2635f9)
2023-03-10T13:52:59.6154404Z     #5 std::lock_guard<std::mutex>::lock_guard(std::mutex&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/std_mutex.h:159:19 (dnsdist+0x2635f9)
2023-03-10T13:52:59.6154677Z     #6 LockGuardedHolder<LuaContext>::LockGuardedHolder(LuaContext&, std::mutex&) /home/runner/work/pdns/pdns/pdns/dnsdistdist/./lock.hh:209:60 (dnsdist+0x2635f9)
2023-03-10T13:52:59.6154906Z     #7 LockGuarded<LuaContext>::lock() /home/runner/work/pdns/pdns/pdns/dnsdistdist/./lock.hh:289:12 (dnsdist+0x25b372)
2023-03-10T13:52:59.6155196Z     #8 LockGuarded<LuaContext>::lock() /home/runner/work/pdns/pdns/pdns/dnsdistdist/./lock.hh:289:12 (dnsdist+0x25b372)
2023-03-10T13:52:59.6155387Z     #9 main /home/runner/work/pdns/pdns/pdns/dnsdistdist/dnsdist.cc:2667:34 (dnsdist+0xb93565)
2023-03-10T13:52:59.6155395Z
2023-03-10T13:52:59.6155663Z   Thread T2 'dnsdist/lua-net' (tid=15426, running) created by main thread at:
2023-03-10T13:52:59.6155789Z     #0 pthread_create <null> (dnsdist+0xf3acb)
2023-03-10T13:52:59.6156049Z     #1 std::thread::_M_start_thread(std::unique_ptr<std::thread::_State, std::default_delete<std::thread::_State> >, void (*)()) <null> (libstdc++.so.6+0xda989)
2023-03-10T13:52:59.6156439Z     #2 dnsdist::NetworkListener::start() /home/runner/work/pdns/pdns/pdns/dnsdistdist/dnsdist-lua-network.cc:145:22 (dnsdist+0x8cbae1)
2023-03-10T13:52:59.6157087Z     #3 setupLuaBindingsNetwork(LuaContext&, bool)::$_6::operator()(std::shared_ptr<dnsdist::NetworkListener>&) const /home/runner/work/pdns/pdns/pdns/dnsdistdist/dnsdist-lua-bindings-network.cc:100:15 (dnsdist+0x5bbf4f)
2023-03-10T13:52:59.6157529Z     #4 decltype(*(this).function(*(this).param)) LuaContext::Binder<setupLuaBindingsNetwork(LuaContext&, bool)::$_6&, std::shared_ptr<dnsdist::NetworkListener>&>::operator()<>() /home/runner/work/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp:1853:20 (dnsdist+0x5bbebb)
2023-03-10T13:52:59.6158131Z     #5 void LuaContext::readIntoFunction<void, LuaContext::Binder<setupLuaBindingsNetwork(LuaContext&, bool)::$_6&, std::shared_ptr<dnsdist::NetworkListener>&>&>(lua_State*, LuaContext::tag<void>, LuaContext::Binder<setupLuaBindingsNetwork(LuaContext&, bool)::$_6&, std::shared_ptr<dnsdist::NetworkListener>&>&, int) /home/runner/work/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp:1772:16 (dnsdist+0x5bbebb)
2023-03-10T13:52:59.6158816Z     #6 std::enable_if<!(IsOptional<std::shared_ptr<dnsdist::NetworkListener>&>::value), void>::type LuaContext::readIntoFunction<void, setupLuaBindingsNetwork(LuaContext&, bool)::$_6&, std::shared_ptr<dnsdist::NetworkListener>&>(lua_State*, LuaContext::tag<void>, setupLuaBindingsNetwork(LuaContext&, bool)::$_6&, int, LuaContext::tag<std::shared_ptr<dnsdist::NetworkListener>&>) /home/runner/work/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp:1803:16 (dnsdist+0x5bbd55)
2023-03-10T13:52:59.6159489Z     #7 std::enable_if<!(IsOptional<std::shared_ptr<dnsdist::NetworkListener>&>::value), void>::type LuaContext::readIntoFunction<void, setupLuaBindingsNetwork(LuaContext&, bool)::$_6&, std::shared_ptr<dnsdist::NetworkListener>&>(lua_State*, LuaContext::tag<void>, setupLuaBindingsNetwork(LuaContext&, bool)::$_6&, int, LuaContext::tag<std::shared_ptr<dnsdist::NetworkListener>&>) /home/runner/work/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp:1803:16 (dnsdist+0x5bbd55)
2023-03-10T13:52:59.6160072Z     #8 std::enable_if<(std::integral_constant<bool, true>::value) && (!(std::is_void<bool>::value)), LuaContext::PushedObject>::type LuaContext::Pusher<void (std::shared_ptr<dnsdist::NetworkListener>&), void>::callback2<setupLuaBindingsNetwork(LuaContext&, bool)::$_6&>(lua_State*, bool&&, int) /home/runner/work/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp:2443:9 (dnsdist+0x5bbc62)
2023-03-10T13:52:59.6160587Z     #9 LuaContext::PushedObject LuaContext::Pusher<void (std::shared_ptr<dnsdist::NetworkListener>&), void>::callback<setupLuaBindingsNetwork(LuaContext&, bool)::$_6>(lua_State*, setupLuaBindingsNetwork(LuaContext&, bool)::$_6*, int) /home/runner/work/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp:2405:20 (dnsdist+0x5bb999)
2023-03-10T13:52:59.6161776Z     #10 std::enable_if<boost::has_trivial_destructor<setupLuaBindingsNetwork(LuaContext&, bool)::$_6>::value, LuaContext::PushedObject>::type LuaContext::Pusher<void (std::shared_ptr<dnsdist::NetworkListener>&), void>::push<setupLuaBindingsNetwork(LuaContext&, bool)::$_6>(lua_State*, setupLuaBindingsNetwork(LuaContext&, bool)::$_6)::'lambda'(lua_State*)::operator()(lua_State*) const /home/runner/work/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp:2334:20 (dnsdist+0x5bb8c7)
2023-03-10T13:52:59.6162870Z     #11 std::enable_if<boost::has_trivial_destructor<setupLuaBindingsNetwork(LuaContext&, bool)::$_6>::value, LuaContext::PushedObject>::type LuaContext::Pusher<void (std::shared_ptr<dnsdist::NetworkListener>&), void>::push<setupLuaBindingsNetwork(LuaContext&, bool)::$_6>(lua_State*, setupLuaBindingsNetwork(LuaContext&, bool)::$_6)::'lambda'(lua_State*)::__invoke(lua_State*) /home/runner/work/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp:2330:31 (dnsdist+0x5bb8c7)
2023-03-10T13:52:59.6163072Z     #12 <null> <null> (libluajit-5.1.so.2+0x8fb6)
2023-03-10T13:52:59.6163265Z     #13 <null> <null> (libluajit-5.1.so.2+0x8fb6)
2023-03-10T13:52:59.6163654Z     #14 std::tuple<> LuaContext::call<std::tuple<> >(lua_State*, LuaContext::PushedObject) /home/runner/work/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp:1413:29 (dnsdist+0x81d979)
2023-03-10T13:52:59.6164106Z     #15 LuaContext::executeCode(std::istream&) /home/runner/work/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp:267:9 (dnsdist+0x999ddf)
2023-03-10T13:52:59.6164650Z     #16 setupLua(LuaContext&, bool, bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) /home/runner/work/pdns/pdns/pdns/dnsdistdist/dnsdist-lua.cc:3022:10 (dnsdist+0x98ecf3)
2023-03-10T13:52:59.6164844Z     #17 main /home/runner/work/pdns/pdns/pdns/dnsdistdist/dnsdist.cc:2667:17 (dnsdist+0xb935a4)
2023-03-10T13:52:59.6164852Z
2023-03-10T13:52:59.6165108Z   Thread T8 'dnsdist/tcpClie' (tid=15432, running) created by main thread at:
2023-03-10T13:52:59.6165219Z     #0 pthread_create <null> (dnsdist+0xf3acb)
2023-03-10T13:52:59.6165479Z     #1 std::thread::_M_start_thread(std::unique_ptr<std::thread::_State, std::default_delete<std::thread::_State> >, void (*)()) <null> (libstdc++.so.6+0xda989)
2023-03-10T13:52:59.6166034Z     #2 TCPClientCollection::TCPClientCollection(unsigned long, std::vector<ClientState*, std::allocator<ClientState*> >) /home/runner/work/pdns/pdns/pdns/dnsdistdist/dnsdist-tcp.cc:126:5 (dnsdist+0xb1a91a)
2023-03-10T13:52:59.6166576Z     #3 TCPClientCollection::TCPClientCollection(unsigned long, std::vector<ClientState*, std::allocator<ClientState*> >) /home/runner/work/pdns/pdns/pdns/dnsdistdist/dnsdist-tcp.cc:126:5 (dnsdist+0xb1a91a)
2023-03-10T13:52:59.6167392Z     #4 std::_MakeUniq<TCPClientCollection>::__single_object std::make_unique<TCPClientCollection, unsigned long&, std::vector<ClientState*, std::allocator<ClientState*> > >(unsigned long&, std::vector<ClientState*, std::allocator<ClientState*> >&&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/unique_ptr.h:962:34 (dnsdist+0xb962aa)
2023-03-10T13:52:59.6167587Z     #5 main /home/runner/work/pdns/pdns/pdns/dnsdistdist/dnsdist.cc:2834:26 (dnsdist+0xb962aa)
2023-03-10T13:52:59.6167715Z     #6 __libc_start_main <null> (libc.so.6+0x24082)
2023-03-10T13:52:59.6167841Z     #7 __libc_start_main <null> (libc.so.6+0x24082)
```
jsoref pushed a commit that referenced this pull request Mar 22, 2023
When `svc-autohints` is enabled, the content of SVCB and HTTPS records
is modified in `PacketHandler::doAdditionalProcessing()` to expand
the IPv4 and IPv6 with their actual values.
This causes an issue because the content of these records might be
shared between threads, via the record cache, and one thread could
be trying to read from the internal `std::set` while a second thread
is altering it, leading to a data race and possibly to memory corruption
and a crash.
This is correctly detected by TSAN:
```
WARNING: ThreadSanitizer: data race (pid=102795)
  Write of size 8 at 0x7b3400010350 by thread T33:
    #0 operator delete(void*) <null> (pdns_server+0x211b7c) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #1 std::__new_allocator<std::_Rb_tree_node<SvcParam>>::deallocate(std::_Rb_tree_node<SvcParam>*, unsigned long) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/new_allocator.h:158:2 (pdns_server+0x33fc78) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #2 std::allocator_traits<std::allocator<std::_Rb_tree_node<SvcParam>>>::deallocate(std::allocator<std::_Rb_tree_node<SvcParam>>&, std::_Rb_tree_node<SvcParam>*, unsigned long) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/alloc_traits.h:496:13 (pdns_server+0x33fc78)
    #3 std::_Rb_tree<SvcParam, SvcParam, std::_Identity<SvcParam>, std::less<SvcParam>, std::allocator<SvcParam>>::_M_put_node(std::_Rb_tree_node<SvcParam>*) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/stl_tree.h:565:9 (pdns_server+0x33fc78)
    #4 std::_Rb_tree<SvcParam, SvcParam, std::_Identity<SvcParam>, std::less<SvcParam>, std::allocator<SvcParam>>::_M_drop_node(std::_Rb_tree_node<SvcParam>*) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/stl_tree.h:632:2 (pdns_server+0x33fc78)
    #5 std::_Rb_tree<SvcParam, SvcParam, std::_Identity<SvcParam>, std::less<SvcParam>, std::allocator<SvcParam>>::_M_erase_aux(std::_Rb_tree_const_iterator<SvcParam>) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/stl_tree.h:2495:7 (pdns_server+0x33fc78)
    #6 std::_Rb_tree<SvcParam, SvcParam, std::_Identity<SvcParam>, std::less<SvcParam>, std::allocator<SvcParam>>::erase[abi:cxx11](std::_Rb_tree_const_iterator<SvcParam>) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/stl_tree.h:1197:2 (pdns_server+0x33fc78)
    #7 std::set<SvcParam, std::less<SvcParam>, std::allocator<SvcParam>>::erase[abi:cxx11](std::_Rb_tree_const_iterator<SvcParam>) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/stl_set.h:655:21 (pdns_server+0x33fc78)
    #8 SVCBBaseRecordContent::setHints(SvcParam::SvcParamKey const&, std::vector<ComboAddress, std::allocator<ComboAddress>> const&) /work/pdns/pdns/dnsrecords.cc:768:14 (pdns_server+0x33fc78)
    #9 PacketHandler::doAdditionalProcessing(DNSPacket&, std::unique_ptr<DNSPacket, std::default_delete<DNSPacket>>&) /work/pdns/pdns/packethandler.cc:565:16 (pdns_server+0x4ed330) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #10 PacketHandler::doQuestion(DNSPacket&) /work/pdns/pdns/packethandler.cc:1794:5 (pdns_server+0x4f79b4) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #11 PacketHandler::question(DNSPacket&) /work/pdns/pdns/packethandler.cc:1175:10 (pdns_server+0x4f649a) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #12 MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::distribute(int) /work/pdns/pdns/./distributor.hh:220:14 (pdns_server+0x260f70) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #13 MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()::operator()() const /work/pdns/pdns/./distributor.hh:179:25 (pdns_server+0x260b31) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #14 void std::__invoke_impl<void, MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()>(std::__invoke_other, MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()&&) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/invoke.h:61:14 (pdns_server+0x260b31)
    #15 std::__invoke_result<MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()>::type std::__invoke<MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()>(MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()&&) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/invoke.h:96:14 (pdns_server+0x260b31)
    #16 void std::thread::_Invoker<std::tuple<MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()>>::_M_invoke<0ul>(std::_Index_tuple<0ul>) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/std_thread.h:258:13 (pdns_server+0x260b31)
    #17 std::thread::_Invoker<std::tuple<MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()>>::operator()() /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/std_thread.h:265:11 (pdns_server+0x260b31)
    #18 std::thread::_State_impl<std::thread::_Invoker<std::tuple<MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()>>>::_M_run() /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/std_thread.h:210:13 (pdns_server+0x260b31)
    PowerDNS#19 execute_native_thread_routine /usr/src/debug/gcc/gcc/libstdc++-v3/src/c++11/thread.cc:82:18 (libstdc++.so.6+0xd72c2) (BuildId: 6fe66a2d539a78c993bd2d377e00fad389220963)

  Previous read of size 2 at 0x7b3400010350 by thread T39:
    #0 SvcParam::getKey() const /work/pdns/pdns/./svc-records.hh:80:12 (pdns_server+0x3721f3) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #1 GenericDNSPacketWriter<std::vector<unsigned char, std::allocator<unsigned char>>>::xfrSvcParamKeyVals(std::set<SvcParam, std::less<SvcParam>, std::allocator<SvcParam>> const&) /work/pdns/pdns/dnswriter.cc:404:23 (pdns_server+0x3721f3)
    #2 void HTTPSRecordContent::xfrPacket<GenericDNSPacketWriter<std::vector<unsigned char, std::allocator<unsigned char>>>>(GenericDNSPacketWriter<std::vector<unsigned char, std::allocator<unsigned char>>>&, bool) /work/pdns/pdns/dnsrecords.cc:348:1 (pdns_server+0x3349bd) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #3 HTTPSRecordContent::toPacket(GenericDNSPacketWriter<std::vector<unsigned char, std::allocator<unsigned char>>>&) /work/pdns/pdns/dnsrecords.cc:348:1 (pdns_server+0x3349bd)
    #4 DNSRecordContent::serialize[abi:cxx11](DNSName const&, bool, bool) /work/pdns/pdns/./dnsparser.hh:215:11 (pdns_server+0x311140) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #5 DNSPacket::addRecord(DNSZoneRecord&&) /work/pdns/pdns/dnspacket.cc:177:68 (pdns_server+0x2fa894) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #6 PacketHandler::doAdditionalProcessing(DNSPacket&, std::unique_ptr<DNSPacket, std::default_delete<DNSPacket>>&) /work/pdns/pdns/packethandler.cc:542:8 (pdns_server+0x4eccf2) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #7 PacketHandler::doQuestion(DNSPacket&) /work/pdns/pdns/packethandler.cc:1794:5 (pdns_server+0x4f79b4) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #8 PacketHandler::question(DNSPacket&) /work/pdns/pdns/packethandler.cc:1175:10 (pdns_server+0x4f649a) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #9 MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::distribute(int) /work/pdns/pdns/./distributor.hh:220:14 (pdns_server+0x260f70) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #10 MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()::operator()() const /work/pdns/pdns/./distributor.hh:179:25 (pdns_server+0x260b31) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #11 void std::__invoke_impl<void, MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()>(std::__invoke_other, MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()&&) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/invoke.h:61:14 (pdns_server+0x260b31)
    #12 std::__invoke_result<MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()>::type std::__invoke<MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()>(MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()&&) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/invoke.h:96:14 (pdns_server+0x260b31)
    #13 void std::thread::_Invoker<std::tuple<MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()>>::_M_invoke<0ul>(std::_Index_tuple<0ul>) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/std_thread.h:258:13 (pdns_server+0x260b31)
    #14 std::thread::_Invoker<std::tuple<MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()>>::operator()() /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/std_thread.h:265:11 (pdns_server+0x260b31)
    #15 std::thread::_State_impl<std::thread::_Invoker<std::tuple<MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()>>>::_M_run() /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/std_thread.h:210:13 (pdns_server+0x260b31)
    #16 execute_native_thread_routine /usr/src/debug/gcc/gcc/libstdc++-v3/src/c++11/thread.cc:82:18 (libstdc++.so.6+0xd72c2) (BuildId: 6fe66a2d539a78c993bd2d377e00fad389220963)

  Thread T33 'pdns/distributo' (tid=102833, running) created by thread T17 at:
    #0 pthread_create <null> (pdns_server+0x1904e6) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #1 __gthread_create /usr/src/debug/gcc/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:663:35 (libstdc++.so.6+0xd73a9) (BuildId: 6fe66a2d539a78c993bd2d377e00fad389220963)
    #2 std::thread::_M_start_thread(std::unique_ptr<std::thread::_State, std::default_delete<std::thread::_State>>, void (*)()) /usr/src/debug/gcc/gcc/libstdc++-v3/src/c++11/thread.cc:147:37 (libstdc++.so.6+0xd73a9)
    #3 Distributor<DNSPacket, DNSPacket, PacketHandler>::Create(int) /work/pdns/pdns/./distributor.hh:134:18 (pdns_server+0x256d23) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #4 qthread(unsigned int) /work/pdns/pdns/auth-main.cc:536:25 (pdns_server+0x256d23)
    #5 void std::__invoke_impl<void, void (*)(unsigned int), unsigned int>(std::__invoke_other, void (*&&)(unsigned int), unsigned int&&) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/invoke.h:61:14 (pdns_server+0x2635f0) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #6 std::__invoke_result<void (*)(unsigned int), unsigned int>::type std::__invoke<void (*)(unsigned int), unsigned int>(void (*&&)(unsigned int), unsigned int&&) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/invoke.h:96:14 (pdns_server+0x2635f0)
    #7 void std::thread::_Invoker<std::tuple<void (*)(unsigned int), unsigned int>>::_M_invoke<0ul, 1ul>(std::_Index_tuple<0ul, 1ul>) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/std_thread.h:258:13 (pdns_server+0x2635f0)
    #8 std::thread::_Invoker<std::tuple<void (*)(unsigned int), unsigned int>>::operator()() /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/std_thread.h:265:11 (pdns_server+0x2635f0)
    #9 std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (*)(unsigned int), unsigned int>>>::_M_run() /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/std_thread.h:210:13 (pdns_server+0x2635f0)
    #10 execute_native_thread_routine /usr/src/debug/gcc/gcc/libstdc++-v3/src/c++11/thread.cc:82:18 (libstdc++.so.6+0xd72c2) (BuildId: 6fe66a2d539a78c993bd2d377e00fad389220963)

  Thread T39 'pdns/distributo' (tid=102837, running) created by thread T19 at:
    #0 pthread_create <null> (pdns_server+0x1904e6) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #1 __gthread_create /usr/src/debug/gcc/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:663:35 (libstdc++.so.6+0xd73a9) (BuildId: 6fe66a2d539a78c993bd2d377e00fad389220963)
    #2 std::thread::_M_start_thread(std::unique_ptr<std::thread::_State, std::default_delete<std::thread::_State>>, void (*)()) /usr/src/debug/gcc/gcc/libstdc++-v3/src/c++11/thread.cc:147:37 (libstdc++.so.6+0xd73a9)
    #3 Distributor<DNSPacket, DNSPacket, PacketHandler>::Create(int) /work/pdns/pdns/./distributor.hh:134:18 (pdns_server+0x256d23) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #4 qthread(unsigned int) /work/pdns/pdns/auth-main.cc:536:25 (pdns_server+0x256d23)
    #5 void std::__invoke_impl<void, void (*)(unsigned int), unsigned int>(std::__invoke_other, void (*&&)(unsigned int), unsigned int&&) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/invoke.h:61:14 (pdns_server+0x2635f0) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #6 std::__invoke_result<void (*)(unsigned int), unsigned int>::type std::__invoke<void (*)(unsigned int), unsigned int>(void (*&&)(unsigned int), unsigned int&&) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/invoke.h:96:14 (pdns_server+0x2635f0)
    #7 void std::thread::_Invoker<std::tuple<void (*)(unsigned int), unsigned int>>::_M_invoke<0ul, 1ul>(std::_Index_tuple<0ul, 1ul>) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/std_thread.h:258:13 (pdns_server+0x2635f0)
    #8 std::thread::_Invoker<std::tuple<void (*)(unsigned int), unsigned int>>::operator()() /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/std_thread.h:265:11 (pdns_server+0x2635f0)
    #9 std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (*)(unsigned int), unsigned int>>>::_M_run() /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/std_thread.h:210:13 (pdns_server+0x2635f0)
    #10 execute_native_thread_routine /usr/src/debug/gcc/gcc/libstdc++-v3/src/c++11/thread.cc:82:18 (libstdc++.so.6+0xd72c2) (BuildId: 6fe66a2d539a78c993bd2d377e00fad389220963)

SUMMARY: ThreadSanitizer: data race (/work/pdns-rgacogne/pdns/pdns_server+0x211b7c) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593) in operator delete(void*)
```

To prevent this issue, this commit wraps the internal `std::set` in a
mutex. In theory this will cause a performance impact, but in practice
I did not find it to be noticeable.
If we ever do, a different solution would be to duplicate the content
of the SVCB/HTTPS records before modifying them.
jsoref pushed a commit that referenced this pull request Apr 17, 2023
When `svc-autohints` is enabled, the content of SVCB and HTTPS records
is modified in `PacketHandler::doAdditionalProcessing()` to expand
the IPv4 and IPv6 with their actual values.
This causes an issue because the content of these records might be
shared between threads, via the record cache, and one thread could
be trying to read from the internal `std::set` while a second thread
is altering it, leading to a data race and possibly to memory corruption
and a crash.
This is correctly detected by TSAN:
```
WARNING: ThreadSanitizer: data race (pid=102795)
  Write of size 8 at 0x7b3400010350 by thread T33:
    #0 operator delete(void*) <null> (pdns_server+0x211b7c) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #1 std::__new_allocator<std::_Rb_tree_node<SvcParam>>::deallocate(std::_Rb_tree_node<SvcParam>*, unsigned long) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/new_allocator.h:158:2 (pdns_server+0x33fc78) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #2 std::allocator_traits<std::allocator<std::_Rb_tree_node<SvcParam>>>::deallocate(std::allocator<std::_Rb_tree_node<SvcParam>>&, std::_Rb_tree_node<SvcParam>*, unsigned long) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/alloc_traits.h:496:13 (pdns_server+0x33fc78)
    #3 std::_Rb_tree<SvcParam, SvcParam, std::_Identity<SvcParam>, std::less<SvcParam>, std::allocator<SvcParam>>::_M_put_node(std::_Rb_tree_node<SvcParam>*) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/stl_tree.h:565:9 (pdns_server+0x33fc78)
    #4 std::_Rb_tree<SvcParam, SvcParam, std::_Identity<SvcParam>, std::less<SvcParam>, std::allocator<SvcParam>>::_M_drop_node(std::_Rb_tree_node<SvcParam>*) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/stl_tree.h:632:2 (pdns_server+0x33fc78)
    #5 std::_Rb_tree<SvcParam, SvcParam, std::_Identity<SvcParam>, std::less<SvcParam>, std::allocator<SvcParam>>::_M_erase_aux(std::_Rb_tree_const_iterator<SvcParam>) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/stl_tree.h:2495:7 (pdns_server+0x33fc78)
    #6 std::_Rb_tree<SvcParam, SvcParam, std::_Identity<SvcParam>, std::less<SvcParam>, std::allocator<SvcParam>>::erase[abi:cxx11](std::_Rb_tree_const_iterator<SvcParam>) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/stl_tree.h:1197:2 (pdns_server+0x33fc78)
    #7 std::set<SvcParam, std::less<SvcParam>, std::allocator<SvcParam>>::erase[abi:cxx11](std::_Rb_tree_const_iterator<SvcParam>) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/stl_set.h:655:21 (pdns_server+0x33fc78)
    #8 SVCBBaseRecordContent::setHints(SvcParam::SvcParamKey const&, std::vector<ComboAddress, std::allocator<ComboAddress>> const&) /work/pdns/pdns/dnsrecords.cc:768:14 (pdns_server+0x33fc78)
    #9 PacketHandler::doAdditionalProcessing(DNSPacket&, std::unique_ptr<DNSPacket, std::default_delete<DNSPacket>>&) /work/pdns/pdns/packethandler.cc:565:16 (pdns_server+0x4ed330) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #10 PacketHandler::doQuestion(DNSPacket&) /work/pdns/pdns/packethandler.cc:1794:5 (pdns_server+0x4f79b4) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    PowerDNS#11 PacketHandler::question(DNSPacket&) /work/pdns/pdns/packethandler.cc:1175:10 (pdns_server+0x4f649a) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    PowerDNS#12 MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::distribute(int) /work/pdns/pdns/./distributor.hh:220:14 (pdns_server+0x260f70) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    PowerDNS#13 MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()::operator()() const /work/pdns/pdns/./distributor.hh:179:25 (pdns_server+0x260b31) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    PowerDNS#14 void std::__invoke_impl<void, MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()>(std::__invoke_other, MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()&&) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/invoke.h:61:14 (pdns_server+0x260b31)
    PowerDNS#15 std::__invoke_result<MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()>::type std::__invoke<MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()>(MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()&&) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/invoke.h:96:14 (pdns_server+0x260b31)
    PowerDNS#16 void std:thread:_Invoker<std::tuple<MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()>>::_M_invoke<0ul>(std::_Index_tuple<0ul>) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/std_thread.h:258:13 (pdns_server+0x260b31)
    PowerDNS#17 std:thread:_Invoker<std::tuple<MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()>>::operator()() /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/std_thread.h:265:11 (pdns_server+0x260b31)
    PowerDNS#18 std:thread:_State_impl<std:thread:_Invoker<std::tuple<MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()>>>::_M_run() /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/std_thread.h:210:13 (pdns_server+0x260b31)
    PowerDNS#19 execute_native_thread_routine /usr/src/debug/gcc/gcc/libstdc++-v3/src/c++11/thread.cc:82:18 (libstdc++.so.6+0xd72c2) (BuildId: 6fe66a2d539a78c993bd2d377e00fad389220963)

  Previous read of size 2 at 0x7b3400010350 by thread T39:
    #0 SvcParam::getKey() const /work/pdns/pdns/./svc-records.hh:80:12 (pdns_server+0x3721f3) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #1 GenericDNSPacketWriter<std::vector<unsigned char, std::allocator<unsigned char>>>::xfrSvcParamKeyVals(std::set<SvcParam, std::less<SvcParam>, std::allocator<SvcParam>> const&) /work/pdns/pdns/dnswriter.cc:404:23 (pdns_server+0x3721f3)
    #2 void HTTPSRecordContent::xfrPacket<GenericDNSPacketWriter<std::vector<unsigned char, std::allocator<unsigned char>>>>(GenericDNSPacketWriter<std::vector<unsigned char, std::allocator<unsigned char>>>&, bool) /work/pdns/pdns/dnsrecords.cc:348:1 (pdns_server+0x3349bd) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #3 HTTPSRecordContent::toPacket(GenericDNSPacketWriter<std::vector<unsigned char, std::allocator<unsigned char>>>&) /work/pdns/pdns/dnsrecords.cc:348:1 (pdns_server+0x3349bd)
    #4 DNSRecordContent::serialize[abi:cxx11](DNSName const&, bool, bool) /work/pdns/pdns/./dnsparser.hh:215:11 (pdns_server+0x311140) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #5 DNSPacket::addRecord(DNSZoneRecord&&) /work/pdns/pdns/dnspacket.cc:177:68 (pdns_server+0x2fa894) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #6 PacketHandler::doAdditionalProcessing(DNSPacket&, std::unique_ptr<DNSPacket, std::default_delete<DNSPacket>>&) /work/pdns/pdns/packethandler.cc:542:8 (pdns_server+0x4eccf2) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #7 PacketHandler::doQuestion(DNSPacket&) /work/pdns/pdns/packethandler.cc:1794:5 (pdns_server+0x4f79b4) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #8 PacketHandler::question(DNSPacket&) /work/pdns/pdns/packethandler.cc:1175:10 (pdns_server+0x4f649a) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #9 MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::distribute(int) /work/pdns/pdns/./distributor.hh:220:14 (pdns_server+0x260f70) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #10 MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()::operator()() const /work/pdns/pdns/./distributor.hh:179:25 (pdns_server+0x260b31) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    PowerDNS#11 void std::__invoke_impl<void, MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()>(std::__invoke_other, MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()&&) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/invoke.h:61:14 (pdns_server+0x260b31)
    PowerDNS#12 std::__invoke_result<MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()>::type std::__invoke<MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()>(MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()&&) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/invoke.h:96:14 (pdns_server+0x260b31)
    PowerDNS#13 void std:thread:_Invoker<std::tuple<MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()>>::_M_invoke<0ul>(std::_Index_tuple<0ul>) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/std_thread.h:258:13 (pdns_server+0x260b31)
    PowerDNS#14 std:thread:_Invoker<std::tuple<MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()>>::operator()() /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/std_thread.h:265:11 (pdns_server+0x260b31)
    PowerDNS#15 std:thread:_State_impl<std:thread:_Invoker<std::tuple<MultiThreadDistributor<DNSPacket, DNSPacket, PacketHandler>::MultiThreadDistributor(int)::'lambda'()>>>::_M_run() /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/std_thread.h:210:13 (pdns_server+0x260b31)
    PowerDNS#16 execute_native_thread_routine /usr/src/debug/gcc/gcc/libstdc++-v3/src/c++11/thread.cc:82:18 (libstdc++.so.6+0xd72c2) (BuildId: 6fe66a2d539a78c993bd2d377e00fad389220963)

  Thread T33 'pdns/distributo' (tid=102833, running) created by thread T17 at:
    #0 pthread_create <null> (pdns_server+0x1904e6) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #1 __gthread_create /usr/src/debug/gcc/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:663:35 (libstdc++.so.6+0xd73a9) (BuildId: 6fe66a2d539a78c993bd2d377e00fad389220963)
    #2 std:thread:_M_start_thread(std::unique_ptr<std:thread:_State, std::default_delete<std:thread:_State>>, void (*)()) /usr/src/debug/gcc/gcc/libstdc++-v3/src/c++11/thread.cc:147:37 (libstdc++.so.6+0xd73a9)
    #3 Distributor<DNSPacket, DNSPacket, PacketHandler>::Create(int) /work/pdns/pdns/./distributor.hh:134:18 (pdns_server+0x256d23) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #4 qthread(unsigned int) /work/pdns/pdns/auth-main.cc:536:25 (pdns_server+0x256d23)
    #5 void std::__invoke_impl<void, void (*)(unsigned int), unsigned int>(std::__invoke_other, void (*&&)(unsigned int), unsigned int&&) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/invoke.h:61:14 (pdns_server+0x2635f0) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #6 std::__invoke_result<void (*)(unsigned int), unsigned int>::type std::__invoke<void (*)(unsigned int), unsigned int>(void (*&&)(unsigned int), unsigned int&&) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/invoke.h:96:14 (pdns_server+0x2635f0)
    #7 void std:thread:_Invoker<std::tuple<void (*)(unsigned int), unsigned int>>::_M_invoke<0ul, 1ul>(std::_Index_tuple<0ul, 1ul>) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/std_thread.h:258:13 (pdns_server+0x2635f0)
    #8 std:thread:_Invoker<std::tuple<void (*)(unsigned int), unsigned int>>::operator()() /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/std_thread.h:265:11 (pdns_server+0x2635f0)
    #9 std:thread:_State_impl<std:thread:_Invoker<std::tuple<void (*)(unsigned int), unsigned int>>>::_M_run() /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/std_thread.h:210:13 (pdns_server+0x2635f0)
    #10 execute_native_thread_routine /usr/src/debug/gcc/gcc/libstdc++-v3/src/c++11/thread.cc:82:18 (libstdc++.so.6+0xd72c2) (BuildId: 6fe66a2d539a78c993bd2d377e00fad389220963)

  Thread T39 'pdns/distributo' (tid=102837, running) created by thread T19 at:
    #0 pthread_create <null> (pdns_server+0x1904e6) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #1 __gthread_create /usr/src/debug/gcc/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:663:35 (libstdc++.so.6+0xd73a9) (BuildId: 6fe66a2d539a78c993bd2d377e00fad389220963)
    #2 std:thread:_M_start_thread(std::unique_ptr<std:thread:_State, std::default_delete<std:thread:_State>>, void (*)()) /usr/src/debug/gcc/gcc/libstdc++-v3/src/c++11/thread.cc:147:37 (libstdc++.so.6+0xd73a9)
    #3 Distributor<DNSPacket, DNSPacket, PacketHandler>::Create(int) /work/pdns/pdns/./distributor.hh:134:18 (pdns_server+0x256d23) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #4 qthread(unsigned int) /work/pdns/pdns/auth-main.cc:536:25 (pdns_server+0x256d23)
    #5 void std::__invoke_impl<void, void (*)(unsigned int), unsigned int>(std::__invoke_other, void (*&&)(unsigned int), unsigned int&&) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/invoke.h:61:14 (pdns_server+0x2635f0) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593)
    #6 std::__invoke_result<void (*)(unsigned int), unsigned int>::type std::__invoke<void (*)(unsigned int), unsigned int>(void (*&&)(unsigned int), unsigned int&&) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/invoke.h:96:14 (pdns_server+0x2635f0)
    #7 void std:thread:_Invoker<std::tuple<void (*)(unsigned int), unsigned int>>::_M_invoke<0ul, 1ul>(std::_Index_tuple<0ul, 1ul>) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/std_thread.h:258:13 (pdns_server+0x2635f0)
    #8 std:thread:_Invoker<std::tuple<void (*)(unsigned int), unsigned int>>::operator()() /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/std_thread.h:265:11 (pdns_server+0x2635f0)
    #9 std:thread:_State_impl<std:thread:_Invoker<std::tuple<void (*)(unsigned int), unsigned int>>>::_M_run() /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/std_thread.h:210:13 (pdns_server+0x2635f0)
    #10 execute_native_thread_routine /usr/src/debug/gcc/gcc/libstdc++-v3/src/c++11/thread.cc:82:18 (libstdc++.so.6+0xd72c2) (BuildId: 6fe66a2d539a78c993bd2d377e00fad389220963)

SUMMARY: ThreadSanitizer: data race (/work/pdns-rgacogne/pdns/pdns_server+0x211b7c) (BuildId: 384adc19a67695435bd5e89d0a77f562561f4593) in operator delete(void*)
```

To prevent this issue, this commit clones the content of SVCB/HTTPS
records before modifying the copy. the drawback is that we need to
do this operation every single time we process them.
jsoref pushed a commit that referenced this pull request Jul 11, 2023
…mode

There is an actual race when one thread, likely the console, changes
the health-check mode of a given backend just when the health-check
thread is determining whether it should send a health-check probe.
We are fine with getting a wrong value in the health-check thread,
as long as we eventually get the new one, so let's not worry about it
and add a TSAN suppression.
The TSAN report was:
```
WARNING: ThreadSanitizer: data race (pid=5301)
  Read of size 1 at 0x7b78000002ae by thread T11:
    #0 DownstreamState::healthCheckRequired(std::optional<long>) /__w/pdns/pdns/pdns/dnsdistdist/dnsdist-backend.cc:555:16 (dnsdist+0x18f003)
    #1 healthChecksThread() /__w/pdns/pdns/pdns/dnsdistdist/dnsdist.cc:2046:17 (dnsdist+0x811ea9)
    #2 void std::__invoke_impl<void, void (*)()>(std::__invoke_other, void (*&&)()) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/invoke.h:60:14 (dnsdist+0x1dfe39)
    #3 std::__invoke_result<void (*)()>::type std::__invoke<void (*)()>(void (*&&)()) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/invoke.h:95:14 (dnsdist+0x1dfe39)
    #4 void std::thread::_Invoker<std::tuple<void (*)()> >::_M_invoke<0ul>(std::_Index_tuple<0ul>) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/thread:264:13 (dnsdist+0x1dfe39)
    #5 std::thread::_Invoker<std::tuple<void (*)()> >::operator()() /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/thread:271:11 (dnsdist+0x1dfe39)
    #6 std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (*)()> > >::_M_run() /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/thread:215:13 (dnsdist+0x1dfe39)
    #7 <null> <null> (libstdc++.so.6+0xceecf)

  Previous write of size 1 at 0x7b78000002ae by thread T21 (mutexes: write M189):
    #0 std::enable_if<IsOptional<DownstreamState>::value, setupLuaBindings(LuaContext&, bool)::$_15>::type LuaContext::readIntoFunction<void, LuaContext::Binder<void LuaContext::registerFunctionImpl<setupLuaBindings(LuaContext&, bool)::$_15, void, DownstreamState, boost::optional<bool> >(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, setupLuaBindings(LuaContext&, bool)::$_15, LuaContext::tag<DownstreamState>, LuaContext::tag<void (boost::optional<bool>)>)::'lambda'(std::shared_ptr<DownstreamState> const&, boost::optional<bool>)&, std::shared_ptr<DownstreamState> const&>&, boost::optional<bool> >(lua_State*, LuaContext::tag<setupLuaBindings(LuaContext&, bool)::$_15>, void&&, int, LuaContext::tag<DownstreamState>, LuaContext::tag<boost::optional<bool> >) /__w/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp (dnsdist+0x4b6ab2)
    #1 std::enable_if<!(IsOptional<DownstreamState>::value), setupLuaBindings(LuaContext&, bool)::$_15>::type LuaContext::readIntoFunction<void, void LuaContext::registerFunctionImpl<setupLuaBindings(LuaContext&, bool)::$_15, void, DownstreamState, boost::optional<bool> >(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, setupLuaBindings(LuaContext&, bool)::$_15, LuaContext::tag<DownstreamState>, LuaContext::tag<void (boost::optional<bool>)>)::'lambda'(std::shared_ptr<DownstreamState> const&, boost::optional<bool>)&, std::shared_ptr<DownstreamState>, boost::optional<bool> >(lua_State*, LuaContext::tag<setupLuaBindings(LuaContext&, bool)::$_15>, void&&, int, LuaContext::tag<DownstreamState>, LuaContext::tag<boost::optional<bool> >) /__w/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp:1803:16 (dnsdist+0x4b6ab2)
    #2 std::enable_if<(std::integral_constant<bool, true>::value) && (!(std::is_void<setupLuaBindings(LuaContext&, bool)::$_15>::value)), LuaContext::PushedObject>::type LuaContext::Pusher<void (std::shared_ptr<DownstreamState>, boost::optional<bool>), void>::callback2<void LuaContext::registerFunctionImpl<setupLuaBindings(LuaContext&, bool)::$_15, void, DownstreamState, boost::optional<bool> >(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, setupLuaBindings(LuaContext&, bool)::$_15, LuaContext::tag<DownstreamState>, LuaContext::tag<void (boost::optional<bool>)>)::'lambda'(std::shared_ptr<DownstreamState> const&, boost::optional<bool>)&>(lua_State*, setupLuaBindings(LuaContext&, bool)::$_15&&, int) /__w/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp:2443:9 (dnsdist+0x4b6ab2)
    #3 LuaContext::PushedObject LuaContext::Pusher<void (std::shared_ptr<DownstreamState>, boost::optional<bool>), void>::callback<void LuaContext::registerFunctionImpl<setupLuaBindings(LuaContext&, bool)::$_15, void, DownstreamState, boost::optional<bool> >(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, setupLuaBindings(LuaContext&, bool)::$_15, LuaContext::tag<DownstreamState>, LuaContext::tag<void (boost::optional<bool>)>)::'lambda'(std::shared_ptr<DownstreamState> const&, boost::optional<bool>)>(lua_State*, setupLuaBindings(LuaContext&, bool)::$_15*, int) /__w/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp:2405:20 (dnsdist+0x4b6ab2)
    #4 std::enable_if<boost::has_trivial_destructor<setupLuaBindings(LuaContext&, bool)::$_15>::value, LuaContext::PushedObject>::type LuaContext::Pusher<void (std::shared_ptr<DownstreamState>, boost::optional<bool>), void>::push<void LuaContext::registerFunctionImpl<setupLuaBindings(LuaContext&, bool)::$_15, void, DownstreamState, boost::optional<bool> >(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, setupLuaBindings(LuaContext&, bool)::$_15, LuaContext::tag<DownstreamState>, LuaContext::tag<void (boost::optional<bool>)>)::'lambda'(std::shared_ptr<DownstreamState> const&, boost::optional<bool>)>(lua_State*, setupLuaBindings(LuaContext&, bool)::$_15)::'lambda'(lua_State*)::operator()(lua_State*) const /__w/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp:2334:20 (dnsdist+0x4b6ab2)
    #5 std::enable_if<boost::has_trivial_destructor<setupLuaBindings(LuaContext&, bool)::$_15>::value, LuaContext::PushedObject>::type LuaContext::Pusher<void (std::shared_ptr<DownstreamState>, boost::optional<bool>), void>::push<void LuaContext::registerFunctionImpl<setupLuaBindings(LuaContext&, bool)::$_15, void, DownstreamState, boost::optional<bool> >(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, setupLuaBindings(LuaContext&, bool)::$_15, LuaContext::tag<DownstreamState>, LuaContext::tag<void (boost::optional<bool>)>)::'lambda'(std::shared_ptr<DownstreamState> const&, boost::optional<bool>)>(lua_State*, setupLuaBindings(LuaContext&, bool)::$_15)::'lambda'(lua_State*)::__invoke(lua_State*) /__w/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp:2330:31 (dnsdist+0x4b6ab2)
    #6 <null> <null> (libluajit-5.1.so.2+0xa5e6)
    #7 boost::optional<boost::variant<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::shared_ptr<DownstreamState>, ClientState*, std::unordered_map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, double, std::hash<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, double> > > > > LuaContext::call<boost::optional<boost::variant<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::shared_ptr<DownstreamState>, ClientState*, std::unordered_map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, double, std::hash<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, double> > > > > >(lua_State*, LuaContext::PushedObject) /__w/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp:1413:29 (dnsdist+0x1c2b4b)
    #8 boost::optional<boost::variant<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::shared_ptr<DownstreamState>, ClientState*, std::unordered_map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, double, std::hash<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, double> > > > > LuaContext::executeCode<boost::optional<boost::variant<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::shared_ptr<DownstreamState>, ClientState*, std::unordered_map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, double, std::hash<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, double> > > > > >(char const*) /__w/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp:324:16 (dnsdist+0x1c2b4b)
    #9 boost::optional<boost::variant<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::shared_ptr<DownstreamState>, ClientState*, std::unordered_map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, double, std::hash<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, double> > > > > LuaContext::executeCode<boost::optional<boost::variant<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::shared_ptr<DownstreamState>, ClientState*, std::unordered_map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, double, std::hash<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, double> > > > > >(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) /__w/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp:301:16 (dnsdist+0x1bf450)
    #10 controlClientThread(ConsoleConnection&&) /__w/pdns/pdns/pdns/dnsdistdist/dnsdist-console.cc:897:27 (dnsdist+0x1bf450)
    #11 boost::optional<boost::variant<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::shared_ptr<DownstreamState>, ClientState*, std::unordered_map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, double, std::hash<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, double> > > > > LuaContext::executeCode<boost::optional<boost::variant<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::shared_ptr<DownstreamState>, ClientState*, std::unordered_map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, double, std::hash<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, double> > > > > >(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) /__w/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp:301:16 (dnsdist+0x1bf450)
    #12 controlClientThread(ConsoleConnection&&) /__w/pdns/pdns/pdns/dnsdistdist/dnsdist-console.cc:897:27 (dnsdist+0x1bf450)
    #13 void std::__invoke_impl<void, void (*)(ConsoleConnection&&), ConsoleConnection>(std::__invoke_other, void (*&&)(ConsoleConnection&&), ConsoleConnection&&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/invoke.h:60:14 (dnsdist+0x1c76f3)
    #14 std::__invoke_result<void (*)(ConsoleConnection&&), ConsoleConnection>::type std::__invoke<void (*)(ConsoleConnection&&), ConsoleConnection>(void (*&&)(ConsoleConnection&&), ConsoleConnection&&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/invoke.h:95:14 (dnsdist+0x1c76f3)
    #15 void std::thread::_Invoker<std::tuple<void (*)(ConsoleConnection&&), ConsoleConnection> >::_M_invoke<0ul, 1ul>(std::_Index_tuple<0ul, 1ul>) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/thread:264:13 (dnsdist+0x1c76f3)
    #16 std::thread::_Invoker<std::tuple<void (*)(ConsoleConnection&&), ConsoleConnection> >::operator()() /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/thread:271:11 (dnsdist+0x1c76f3)
    #17 std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (*)(ConsoleConnection&&), ConsoleConnection> > >::_M_run() /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/thread:215:13 (dnsdist+0x1c76f3)
    #18 <null> <null> (libstdc++.so.6+0xceecf)

  As if synchronized via sleep:
    #0 healthChecksThread() /__w/pdns/pdns/pdns/dnsdistdist/dnsdist.cc:2034:5 (dnsdist+0xc77e8)
    #1 void std::__invoke_impl<void, void (*)()>(std::__invoke_other, void (*&&)()) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/invoke.h:60:14 (dnsdist+0x811b8e)
    #2 std::__invoke_result<void (*)()>::type std::__invoke<void (*)()>(void (*&&)()) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/invoke.h:95:14 (dnsdist+0x811b8e)
    #3 void std::thread::_Invoker<std::tuple<void (*)()> >::_M_invoke<0ul>(std::_Index_tuple<0ul>) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/thread:264:13 (dnsdist+0x811b8e)
    #4 std::thread::_Invoker<std::tuple<void (*)()> >::operator()() /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/thread:271:11 (dnsdist+0x811b8e)
    #5 std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (*)()> > >::_M_run() /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/thread:215:13 (dnsdist+0x811b8e)
    #6 <null> <null> (dnsdist+0x1dfe39)
    #7 operator new(unsigned long, std::align_val_t) <null> (libstdc++.so.6+0xceecf)

  Location is heap block of size 2880 at 0x7b7800000000 allocated by main thread:
    #0 __gnu_cxx::new_allocator<std::_Sp_counted_ptr_inplace<DownstreamState, std::allocator<DownstreamState>, (__gnu_cxx::_Lock_policy)2> >::allocate(unsigned long, void const*) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/ext/new_allocator.h:112:31 (dnsdist+0x13f29c)
    #1 std::allocator_traits<std::allocator<std::_Sp_counted_ptr_inplace<DownstreamState, std::allocator<DownstreamState>, (__gnu_cxx::_Lock_policy)2> > >::allocate(std::allocator<std::_Sp_counted_ptr_inplace<DownstreamState, std::allocator<DownstreamState>, (__gnu_cxx::_Lock_policy)2> >&, unsigned long) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/alloc_traits.h:460:20 (dnsdist+0x13f29c)
    #2 std::__allocated_ptr<std::allocator<std::_Sp_counted_ptr_inplace<DownstreamState, std::allocator<DownstreamState>, (__gnu_cxx::_Lock_policy)2> > > std::__allocate_guarded<std::allocator<std::_Sp_counted_ptr_inplace<DownstreamState, std::allocator<DownstreamState>, (__gnu_cxx::_Lock_policy)2> > >(std::allocator<std::_Sp_counted_ptr_inplace<DownstreamState, std::allocator<DownstreamState>, (__gnu_cxx::_Lock_policy)2> >&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/allocated_ptr.h:97:21 (dnsdist+0x13f29c)
    #3 std::__shared_count<(__gnu_cxx::_Lock_policy)2>::__shared_count<DownstreamState, std::allocator<DownstreamState>, DownstreamState::Config, std::shared_ptr<TLSCtx>, bool>(DownstreamState*&, std::_Sp_alloc_shared_tag<std::allocator<DownstreamState> >, DownstreamState::Config&&, std::shared_ptr<TLSCtx>&&, bool&&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/shared_ptr_base.h:680:19 (dnsdist+0x13f29c)
    #4 std::__shared_ptr<DownstreamState, (__gnu_cxx::_Lock_policy)2>::__shared_ptr<std::allocator<DownstreamState>, DownstreamState::Config, std::shared_ptr<TLSCtx>, bool>(std::_Sp_alloc_shared_tag<std::allocator<DownstreamState> >, DownstreamState::Config&&, std::shared_ptr<TLSCtx>&&, bool&&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/shared_ptr_base.h:1371:14 (dnsdist+0x13f29c)
    #5 std::shared_ptr<DownstreamState>::shared_ptr<std::allocator<DownstreamState>, DownstreamState::Config, std::shared_ptr<TLSCtx>, bool>(std::_Sp_alloc_shared_tag<std::allocator<DownstreamState> >, DownstreamState::Config&&, std::shared_ptr<TLSCtx>&&, bool&&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/shared_ptr.h:408:4 (dnsdist+0x1db3be)
    #6 std::shared_ptr<DownstreamState> std::allocate_shared<DownstreamState, std::allocator<DownstreamState>, DownstreamState::Config, std::shared_ptr<TLSCtx>, bool>(std::allocator<DownstreamState> const&, DownstreamState::Config&&, std::shared_ptr<TLSCtx>&&, bool&&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/shared_ptr.h:859:14 (dnsdist+0x1db3be)
    #7 std::shared_ptr<DownstreamState> std::make_shared<DownstreamState, DownstreamState::Config, std::shared_ptr<TLSCtx>, bool>(DownstreamState::Config&&, std::shared_ptr<TLSCtx>&&, bool&&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/shared_ptr.h:875:14 (dnsdist+0x1db3be)
    #8 setupLuaConfig(LuaContext&, bool, bool)::$_3::operator()(boost::variant<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::unordered_map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::variant<bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::vector<std::pair<int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, std::function<std::tuple<DNSName, unsigned short, unsigned short> (DNSName const&, unsigned short, unsigned short, dnsheader*)> >, std::hash<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, boost::variant<bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::vector<std::pair<int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, std::function<std::tuple<DNSName, unsigned short, unsigned short> (DNSName const&, unsigned short, unsigned short, dnsheader*)> > > > > >, boost::optional<int>) const /__w/pdns/pdns/pdns/dnsdistdist/dnsdist-lua.cc:619:37 (dnsdist+0x1db3be)
    #9 tor<char> > > > >, std::function<std::tuple<DNSName, unsigned short, unsigned short> (DNSName const&, unsigned short, unsigned short, dnsheader*)> > > > > >, boost::optional<int>), void>::callback2<setupLuaConfig(LuaContext&, bool, bool)::$_3&>(lua_State*, setupLuaConfig(LuaContext&, bool, bool)::$_3&, int) /__w/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp:2436:31 (dnsdist+0x69065d)
    #10 LuaContext::PushedObject LuaContext::Pusher<std::shared_ptr<DownstreamState> (boost::variant<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::unordered_map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::variant<bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::vector<std::pair<int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, std::function<std::tuple<DNSName, unsigned short, unsigned short> (DNSName const&, unsigned short, unsigned short, dnsheader*)> >, std::hash<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, boost::variant<bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::vector<std::pair<int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, std::function<std::tuple<DNSName, unsigned short, unsigned short> (DNSName const&, unsigned short, unsigned short, dnsheader*)> > > > > >, boost::optional<int>), void>::callback<setupLuaConfig(LuaContext&, bool, bool)::$_3>(lua_State*, setupLuaConfig(LuaContext&, bool, bool)::$_3*, int) /__w/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp:2405:20 (dnsdist+0x69065d)
    #11 std::enable_if<boost::has_trivial_destructor<setupLuaConfig(LuaContext&, bool, bool)::$_3>::value, LuaContext::PushedObject>::type LuaContext::Pusher<std::shared_ptr<DownstreamState> (boost::variant<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::unordered_map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::variant<bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::vector<std::pair<int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, std::function<std::tuple<DNSName, unsigned short, unsigned short> (DNSName const&, unsigned short, unsigned short, dnsheader*)> >, std::hash<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, boost::variant<bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::vector<std::pair<int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, std::function<std::tuple<DNSName, unsigned short, unsigned short> (DNSName const&, unsigned short, unsigned short, dnsheader*)> > > > > >, boost::optional<int>), void>::push<setupLuaConfig(LuaContext&, bool, bool)::$_3>(lua_State*, setupLuaConfig(LuaContext&, bool, bool)::$_3)::'lambda'(lua_State*)::operator()(lua_State*) const /__w/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp:2334:20 (dnsdist+0x69065d)
    #12 std::enable_if<boost::has_trivial_destructor<setupLuaConfig(LuaContext&, bool, bool)::$_3>::value, LuaContext::PushedObject>::type LuaContext::Pusher<std::shared_ptr<DownstreamState> (boost::variant<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::unordered_map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::variant<bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::vector<std::pair<int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, std::function<std::tuple<DNSName, unsigned short, unsigned short> (DNSName const&, unsigned short, unsigned short, dnsheader*)> >, std::hash<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, boost::variant<bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::vector<std::pair<int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, std::function<std::tuple<DNSName, unsigned short, unsigned short> (DNSName const&, unsigned short, unsigned short, dnsheader*)> > > > > >, boost::optional<int>), void>::push<setupLuaConfig(LuaContext&, bool, bool)::$_3>(lua_State*, setupLuaConfig(LuaContext&, bool, bool)::$_3)::'lambda'(lua_State*)::__invoke(lua_State*) /__w/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp:2330:31 (dnsdist+0x69065d)
    #13 <null> <null> (dnsdist+0x687942)
    #14 <null> <null> (libluajit-5.1.so.2+0xa5e6)
    #15 std::tuple<> LuaContext::call<std::tuple<> >(lua_State*, LuaContext::PushedObject) /__w/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp:1413:29 (dnsdist+0x577e85)
    #16 LuaContext::executeCode(std::istream&) /__w/pdns/pdns/pdns/dnsdistdist/./ext/luawrapper/include/LuaContext.hpp:267:9 (dnsdist+0x685db6)
    #17 setupLua(LuaContext&, bool, bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) /__w/pdns/pdns/pdns/dnsdistdist/dnsdist-lua.cc:3025:10 (dnsdist+0x67b759)
    #18 main /__w/pdns/pdns/pdns/dnsdistdist/dnsdist.cc:2668:17 (dnsdist+0x809d2c)

  Mutex M189 (0x55801da4cdf0) created at:
    #0 pthread_mutex_lock <null> (dnsdist+0xe74f8)
    #1 __gthread_mutex_lock(pthread_mutex_t*) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:749:12 (dnsdist+0x80c177)
    #2 std::mutex::lock() /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/std_mutex.h:100:17 (dnsdist+0x80c177)
    #3 std::lock_guard<std::mutex>::lock_guard(std::mutex&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/std_mutex.h:159:19 (dnsdist+0x80c177)
    #4 LockGuardedHolder<LuaContext>::LockGuardedHolder(LuaContext&, std::mutex&) /__w/pdns/pdns/pdns/dnsdistdist/./lock.hh:209:60 (dnsdist+0x80c177)
    #5 LockGuarded<LuaContext>::lock() /__w/pdns/pdns/pdns/dnsdistdist/./lock.hh:289:12 (dnsdist+0x80c177)
    #6 main /__w/pdns/pdns/pdns/dnsdistdist/dnsdist.cc:2668:34 (dnsdist+0x809d0c)

  Thread T11 'dnsdist/healthC' (tid=5313, running) created by main thread at:
    #0 pthread_create <null> (dnsdist+0xca21d)
    #1 std::thread::_M_start_thread(std::unique_ptr<std::thread::_State, std::default_delete<std::thread::_State> >, void (*)()) <null> (libstdc++.so.6+0xcf144)
    #2 main /__w/pdns/pdns/pdns/dnsdistdist/dnsdist.cc:2938:12 (dnsdist+0x80b06e)

  Thread T21 'dnsdist/conscli' (tid=5325, finished) created by thread T5 at:
    #0 pthread_create <null> (dnsdist+0xca21d)
    #1 std::thread::_M_start_thread(std::unique_ptr<std::thread::_State, std::default_delete<std::thread::_State> >, void (*)()) <null> (libstdc++.so.6+0xcf144)
    #2 void std::__invoke_impl<void, void (*)(int, ComboAddress), int, ComboAddress>(std::__invoke_other, void (*&&)(int, ComboAddress), int&&, ComboAddress&&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/invoke.h:60:14 (dnsdist+0x6c0435)
    #3 std::__invoke_result<void (*)(int, ComboAddress), int, ComboAddress>::type std::__invoke<void (*)(int, ComboAddress), int, ComboAddress>(void (*&&)(int, ComboAddress), int&&, ComboAddress&&) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/invoke.h:95:14 (dnsdist+0x6c0435)
    #4 void std::thread::_Invoker<std::tuple<void (*)(int, ComboAddress), int, ComboAddress> >::_M_invoke<0ul, 1ul, 2ul>(std::_Index_tuple<0ul, 1ul, 2ul>) /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/thread:264:13 (dnsdist+0x6c0435)
    #5 std::thread::_Invoker<std::tuple<void (*)(int, ComboAddress), int, ComboAddress> >::operator()() /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/thread:271:11 (dnsdist+0x6c0435)
    #6 std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (*)(int, ComboAddress), int, ComboAddress> > >::_M_run() /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/thread:215:13 (dnsdist+0x6c0435)
    #7 <null> <null> (libstdc++.so.6+0xceecf)
```
jsoref pushed a commit that referenced this pull request Aug 31, 2023
We used to get a index from OpenSSL when the first incoming or
outgoing TLS connection was created. That index is later used
to store application-related data along the TLS connection, to
be able to access it in callbacks called from inside the OpenSSL
library.
Unfortunately the atomic flag construction used was racy: if a second
connection is created while the first one is still getting the index,
it could be reading the initial value (-1) instead of the actual index,
which might prevent the callback from working properly because they
cannot retrieve the necessary data. The good news is that this should
not have a serious impact: a TLS session might not be properly resumed
while it should have been, leading to a full TLS session negotiation.
This commit fixes the race by using a full mutex and only releasing
it once the value has been computed. In order to avoid a performance
penalty, the index is now computed when a TLS connection _context_
is created, instead of a TLS connection. TLS contexts should be
reused for a large number of connections, and mostly created during
startup or in the first few seconds of the application.

The race was reported by Thread Sanitizer during the
`test_TLS.py::TestTLSFrontendLimits::testTCPConnsPerTLSFrontend`
regression test as:
```
WARNING: ThreadSanitizer: data race (pid=120466)
  Read of size 4 at 0x55a12bf3d758 by thread T4:
    #0 OpenSSLTLSConnection::OpenSSLTLSConnection(int, timeval const&, std::shared_ptr<OpenSSLFrontendContext>) /work/pdns/pdns/dnsdistdist/tcpiohandler.cc:106 (dnsdist+0x97ece8) (BuildId: ad82581368352777fda41d4b4145ba8ec738044c)
    #1 std::__detail::_MakeUniq<OpenSSLTLSConnection>::__single_object std::make_unique<OpenSSLTLSConnection, int&, timeval const&, std::shared_ptr<OpenSSLFrontendContext>&>(int&, timeval const&, std::shared_ptr<OpenSSLFrontendContext>&) /usr/include/c++/13.2.1/bits/unique_ptr.h:1070 (dnsdist+0x97eff6) (BuildId: ad82581368352777fda41d4b4145ba8ec738044c)
    #2 OpenSSLTLSIOCtx::getConnection(int, timeval const&, long) /work/pdns/pdns/dnsdistdist/tcpiohandler.cc:797 (dnsdist+0x97eff6)
    #3 TCPIOHandler::TCPIOHandler(int, timeval const&, std::shared_ptr<TLSCtx>, long) /work/pdns/pdns/dnsdistdist/tcpiohandler.hh:246 (dnsdist+0x88c24f) (BuildId: ad82581368352777fda41d4b4145ba8ec738044c)
    #4 IncomingTCPConnectionState::IncomingTCPConnectionState(ConnectionInfo&&, TCPClientThreadData&, timeval const&) /work/pdns/pdns/dnsdistdist/dnsdist-tcp-upstream.hh:29 (dnsdist+0x88c24f)
    #5 void std::_Construct<IncomingTCPConnectionState, ConnectionInfo, TCPClientThreadData&, timeval&>(IncomingTCPConnectionState*, ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/include/c++/13.2.1/bits/stl_construct.h:119 (dnsdist+0x878b1e) (BuildId: ad82581368352777fda41d4b4145ba8ec738044c)
    #6 void std::allocator_traits<std::allocator<void> >::construct<IncomingTCPConnectionState, ConnectionInfo, TCPClientThreadData&, timeval&>(std::allocator<void>&, IncomingTCPConnectionState*, ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/include/c++/13.2.1/bits/alloc_traits.h:660 (dnsdist+0x878b1e)
    #7 std::_Sp_counted_ptr_inplace<IncomingTCPConnectionState, std::allocator<void>, (__gnu_cxx::_Lock_policy)2>::_Sp_counted_ptr_inplace<ConnectionInfo, TCPClientThreadData&, timeval&>(std::allocator<void>, ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/include/c++/13.2.1/bits/shared_ptr_base.h:604 (dnsdist+0x878b1e)
    #8 std::__shared_count<(__gnu_cxx::_Lock_policy)2>::__shared_count<IncomingTCPConnectionState, std::allocator<void>, ConnectionInfo, TCPClientThreadData&, timeval&>(IncomingTCPConnectionState*&, std::_Sp_alloc_shared_tag<std::allocator<void> >, ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/include/c++/13.2.1/bits/shared_ptr_base.h:971 (dnsdist+0x878b1e)
    #9 std::__shared_ptr<IncomingTCPConnectionState, (__gnu_cxx::_Lock_policy)2>::__shared_ptr<std::allocator<void>, ConnectionInfo, TCPClientThreadData&, timeval&>(std::_Sp_alloc_shared_tag<std::allocator<void> >, ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/include/c++/13.2.1/bits/shared_ptr_base.h:1712 (dnsdist+0x878b1e)
    #10 std::shared_ptr<IncomingTCPConnectionState>::shared_ptr<std::allocator<void>, ConnectionInfo, TCPClientThreadData&, timeval&>(std::_Sp_alloc_shared_tag<std::allocator<void> >, ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/include/c++/13.2.1/bits/shared_ptr.h:464 (dnsdist+0x878b1e)
    #11 std::shared_ptr<std::enable_if<!std::is_array<IncomingTCPConnectionState>::value, IncomingTCPConnectionState>::type> std::make_shared<IncomingTCPConnectionState, ConnectionInfo, TCPClientThreadData&, timeval&>(ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/include/c++/13.2.1/bits/shared_ptr.h:1010 (dnsdist+0x878b1e)
    #12 handleIncomingTCPQuery /work/pdns/pdns/dnsdistdist/dnsdist-tcp.cc:1118 (dnsdist+0x878b1e)
    #13 void std::__invoke_impl<void, void (*&)(int, boost::any&), int, boost::any&>(std::__invoke_other, void (*&)(int, boost::any&), int&&, boost::any&) /usr/include/c++/13.2.1/bits/invoke.h:61 (dnsdist+0x32d951) (BuildId: ad82581368352777fda41d4b4145ba8ec738044c)
    #14 std::enable_if<is_invocable_r_v<void, void (*&)(int, boost::any&), int, boost::any&>, void>::type std::__invoke_r<void, void (*&)(int, boost::any&), int, boost::any&>(void (*&)(int, boost::any&), int&&, boost::any&) /usr/include/c++/13.2.1/bits/invoke.h:111 (dnsdist+0x32d951)
    #15 std::_Function_handler<void (int, boost::any&), void (*)(int, boost::any&)>::_M_invoke(std::_Any_data const&, int&&, boost::any&) /usr/include/c++/13.2.1/bits/std_function.h:290 (dnsdist+0x32d951)
    #16 std::function<void (int, boost::any&)>::operator()(int, boost::any&) const /usr/include/c++/13.2.1/bits/std_function.h:591 (dnsdist+0x98fc0f) (BuildId: ad82581368352777fda41d4b4145ba8ec738044c)
    #17 EpollFDMultiplexer::run(timeval*, int) /work/pdns/pdns/dnsdistdist/epollmplexer.cc:190 (dnsdist+0x98fc0f)
    #18 tcpClientThread /work/pdns/pdns/dnsdistdist/dnsdist-tcp.cc:1251 (dnsdist+0x86cb7f) (BuildId: ad82581368352777fda41d4b4145ba8ec738044c)
    PowerDNS#19 void std::__invoke_impl<void, void (*)(pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >&&, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >&&, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, std::vector<ClientState*, std::allocator<ClientState*> >), pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >, std::vector<ClientState*, std::allocator<ClientState*> > >(std::__invoke_other, void (*&&)(pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >&&, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >&&, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, std::vector<ClientState*, std::allocator<ClientState*> >), pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >&&, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >&&, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, std::vector<ClientState*, std::allocator<ClientState*> >&&) /usr/include/c++/13.2.1/bits/invoke.h:61 (dnsdist+0x87aab1) (BuildId: ad82581368352777fda41d4b4145ba8ec738044c)
    PowerDNS#20 std::__invoke_result<void (*)(pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >&&, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >&&, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, std::vector<ClientState*, std::allocator<ClientState*> >), pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >, std::vector<ClientState*, std::allocator<ClientState*> > >::type std::__invoke<void (*)(pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >&&, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >&&, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, std::vector<ClientState*, std::allocator<ClientState*> >), pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >, std::vector<ClientState*, std::allocator<ClientState*> > >(void (*&&)(pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >&&, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >&&, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, std::vector<ClientState*, std::allocator<ClientState*> >), pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >&&, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >&&, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, std::vector<ClientState*, std::allocator<ClientState*> >&&) /usr/include/c++/13.2.1/bits/invoke.h:96 (dnsdist+0x87aab1)
    PowerDNS#21 void std::thread::_Invoker<std::tuple<void (*)(pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >&&, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >&&, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, std::vector<ClientState*, std::allocator<ClientState*> >), pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >, std::vector<ClientState*, std::allocator<ClientState*> > > >::_M_invoke<0ul, 1ul, 2ul, 3ul, 4ul, 5ul>(std::_Index_tuple<0ul, 1ul, 2ul, 3ul, 4ul, 5ul>) /usr/include/c++/13.2.1/bits/std_thread.h:292 (dnsdist+0x87aab1)
    PowerDNS#22 std::thread::_Invoker<std::tuple<void (*)(pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >&&, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >&&, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, std::vector<ClientState*, std::allocator<ClientState*> >), pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >, std::vector<ClientState*, std::allocator<ClientState*> > > >::operator()() /usr/include/c++/13.2.1/bits/std_thread.h:299 (dnsdist+0x87aab1)
    PowerDNS#23 std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (*)(pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >&&, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >&&, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, std::vector<ClientState*, std::allocator<ClientState*> >), pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >, std::vector<ClientState*, std::allocator<ClientState*> > > > >::_M_run() /usr/include/c++/13.2.1/bits/std_thread.h:244 (dnsdist+0x87aab1)
    PowerDNS#24 execute_native_thread_routine /usr/src/debug/gcc/gcc/libstdc++-v3/src/c++11/thread.cc:104 (libstdc++.so.6+0xe1942) (BuildId: 207eb738c5976dd9aac1ae0640fc4de5946b547e)

  Previous write of size 4 at 0x55a12bf3d758 by thread T3:
    #0 OpenSSLTLSConnection::OpenSSLTLSConnection(int, timeval const&, std::shared_ptr<OpenSSLFrontendContext>) /work/pdns/pdns/dnsdistdist/tcpiohandler.cc:88 (dnsdist+0x97ed98) (BuildId: ad82581368352777fda41d4b4145ba8ec738044c)
    #1 std::__detail::_MakeUniq<OpenSSLTLSConnection>::__single_object std::make_unique<OpenSSLTLSConnection, int&, timeval const&, std::shared_ptr<OpenSSLFrontendContext>&>(int&, timeval const&, std::shared_ptr<OpenSSLFrontendContext>&) /usr/include/c++/13.2.1/bits/unique_ptr.h:1070 (dnsdist+0x97eff6) (BuildId: ad82581368352777fda41d4b4145ba8ec738044c)
    #2 OpenSSLTLSIOCtx::getConnection(int, timeval const&, long) /work/pdns/pdns/dnsdistdist/tcpiohandler.cc:797 (dnsdist+0x97eff6)
    #3 TCPIOHandler::TCPIOHandler(int, timeval const&, std::shared_ptr<TLSCtx>, long) /work/pdns/pdns/dnsdistdist/tcpiohandler.hh:246 (dnsdist+0x88c24f) (BuildId: ad82581368352777fda41d4b4145ba8ec738044c)
    #4 IncomingTCPConnectionState::IncomingTCPConnectionState(ConnectionInfo&&, TCPClientThreadData&, timeval const&) /work/pdns/pdns/dnsdistdist/dnsdist-tcp-upstream.hh:29 (dnsdist+0x88c24f)
    #5 void std::_Construct<IncomingTCPConnectionState, ConnectionInfo, TCPClientThreadData&, timeval&>(IncomingTCPConnectionState*, ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/include/c++/13.2.1/bits/stl_construct.h:119 (dnsdist+0x878b1e) (BuildId: ad82581368352777fda41d4b4145ba8ec738044c)
    #6 void std::allocator_traits<std::allocator<void> >::construct<IncomingTCPConnectionState, ConnectionInfo, TCPClientThreadData&, timeval&>(std::allocator<void>&, IncomingTCPConnectionState*, ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/include/c++/13.2.1/bits/alloc_traits.h:660 (dnsdist+0x878b1e)
    #7 std::_Sp_counted_ptr_inplace<IncomingTCPConnectionState, std::allocator<void>, (__gnu_cxx::_Lock_policy)2>::_Sp_counted_ptr_inplace<ConnectionInfo, TCPClientThreadData&, timeval&>(std::allocator<void>, ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/include/c++/13.2.1/bits/shared_ptr_base.h:604 (dnsdist+0x878b1e)
    #8 std::__shared_count<(__gnu_cxx::_Lock_policy)2>::__shared_count<IncomingTCPConnectionState, std::allocator<void>, ConnectionInfo, TCPClientThreadData&, timeval&>(IncomingTCPConnectionState*&, std::_Sp_alloc_shared_tag<std::allocator<void> >, ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/include/c++/13.2.1/bits/shared_ptr_base.h:971 (dnsdist+0x878b1e)
    #9 std::__shared_ptr<IncomingTCPConnectionState, (__gnu_cxx::_Lock_policy)2>::__shared_ptr<std::allocator<void>, ConnectionInfo, TCPClientThreadData&, timeval&>(std::_Sp_alloc_shared_tag<std::allocator<void> >, ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/include/c++/13.2.1/bits/shared_ptr_base.h:1712 (dnsdist+0x878b1e)
    #10 std::shared_ptr<IncomingTCPConnectionState>::shared_ptr<std::allocator<void>, ConnectionInfo, TCPClientThreadData&, timeval&>(std::_Sp_alloc_shared_tag<std::allocator<void> >, ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/include/c++/13.2.1/bits/shared_ptr.h:464 (dnsdist+0x878b1e)
    #11 std::shared_ptr<std::enable_if<!std::is_array<IncomingTCPConnectionState>::value, IncomingTCPConnectionState>::type> std::make_shared<IncomingTCPConnectionState, ConnectionInfo, TCPClientThreadData&, timeval&>(ConnectionInfo&&, TCPClientThreadData&, timeval&) /usr/include/c++/13.2.1/bits/shared_ptr.h:1010 (dnsdist+0x878b1e)
    #12 handleIncomingTCPQuery /work/pdns/pdns/dnsdistdist/dnsdist-tcp.cc:1118 (dnsdist+0x878b1e)
    #13 void std::__invoke_impl<void, void (*&)(int, boost::any&), int, boost::any&>(std::__invoke_other, void (*&)(int, boost::any&), int&&, boost::any&) /usr/include/c++/13.2.1/bits/invoke.h:61 (dnsdist+0x32d951) (BuildId: ad82581368352777fda41d4b4145ba8ec738044c)
    #14 std::enable_if<is_invocable_r_v<void, void (*&)(int, boost::any&), int, boost::any&>, void>::type std::__invoke_r<void, void (*&)(int, boost::any&), int, boost::any&>(void (*&)(int, boost::any&), int&&, boost::any&) /usr/include/c++/13.2.1/bits/invoke.h:111 (dnsdist+0x32d951)
    #15 std::_Function_handler<void (int, boost::any&), void (*)(int, boost::any&)>::_M_invoke(std::_Any_data const&, int&&, boost::any&) /usr/include/c++/13.2.1/bits/std_function.h:290 (dnsdist+0x32d951)
    #16 std::function<void (int, boost::any&)>::operator()(int, boost::any&) const /usr/include/c++/13.2.1/bits/std_function.h:591 (dnsdist+0x98fc0f) (BuildId: ad82581368352777fda41d4b4145ba8ec738044c)
    #17 EpollFDMultiplexer::run(timeval*, int) /work/pdns/pdns/dnsdistdist/epollmplexer.cc:190 (dnsdist+0x98fc0f)
    #18 tcpClientThread /work/pdns/pdns/dnsdistdist/dnsdist-tcp.cc:1251 (dnsdist+0x86cb7f) (BuildId: ad82581368352777fda41d4b4145ba8ec738044c)
    PowerDNS#19 void std::__invoke_impl<void, void (*)(pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >&&, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >&&, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, std::vector<ClientState*, std::allocator<ClientState*> >), pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >, std::vector<ClientState*, std::allocator<ClientState*> > >(std::__invoke_other, void (*&&)(pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >&&, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >&&, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, std::vector<ClientState*, std::allocator<ClientState*> >), pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >&&, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >&&, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, std::vector<ClientState*, std::allocator<ClientState*> >&&) /usr/include/c++/13.2.1/bits/invoke.h:61 (dnsdist+0x87aab1) (BuildId: ad82581368352777fda41d4b4145ba8ec738044c)
    PowerDNS#20 std::__invoke_result<void (*)(pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >&&, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >&&, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, std::vector<ClientState*, std::allocator<ClientState*> >), pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >, std::vector<ClientState*, std::allocator<ClientState*> > >::type std::__invoke<void (*)(pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >&&, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >&&, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, std::vector<ClientState*, std::allocator<ClientState*> >), pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >, std::vector<ClientState*, std::allocator<ClientState*> > >(void (*&&)(pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >&&, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >&&, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, std::vector<ClientState*, std::allocator<ClientState*> >), pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >&&, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >&&, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, std::vector<ClientState*, std::allocator<ClientState*> >&&) /usr/include/c++/13.2.1/bits/invoke.h:96 (dnsdist+0x87aab1)
    PowerDNS#21 void std::thread::_Invoker<std::tuple<void (*)(pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >&&, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >&&, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, std::vector<ClientState*, std::allocator<ClientState*> >), pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >, std::vector<ClientState*, std::allocator<ClientState*> > > >::_M_invoke<0ul, 1ul, 2ul, 3ul, 4ul, 5ul>(std::_Index_tuple<0ul, 1ul, 2ul, 3ul, 4ul, 5ul>) /usr/include/c++/13.2.1/bits/std_thread.h:292 (dnsdist+0x87aab1)
    PowerDNS#22 std::thread::_Invoker<std::tuple<void (*)(pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >&&, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >&&, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, std::vector<ClientState*, std::allocator<ClientState*> >), pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >, std::vector<ClientState*, std::allocator<ClientState*> > > >::operator()() /usr/include/c++/13.2.1/bits/std_thread.h:299 (dnsdist+0x87aab1)
    PowerDNS#23 std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (*)(pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >&&, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >&&, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >&&, std::vector<ClientState*, std::allocator<ClientState*> >), pdns::channel::Receiver<ConnectionInfo, std::default_delete<ConnectionInfo> >, pdns::channel::Receiver<CrossProtocolQuery, std::default_delete<CrossProtocolQuery> >, pdns::channel::Receiver<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >, pdns::channel::Sender<TCPCrossProtocolResponse, std::default_delete<TCPCrossProtocolResponse> >, std::vector<ClientState*, std::allocator<ClientState*> > > > >::_M_run() /usr/include/c++/13.2.1/bits/std_thread.h:244 (dnsdist+0x87aab1)
    PowerDNS#24 execute_native_thread_routine /usr/src/debug/gcc/gcc/libstdc++-v3/src/c++11/thread.cc:104 (libstdc++.so.6+0xe1942) (BuildId: 207eb738c5976dd9aac1ae0640fc4de5946b547e)

  Location is global 'OpenSSLTLSConnection::s_tlsConnIndex' of size 4 at 0x55a12bf3d758 (dnsdist+0xc49758)

  Thread T4 'dnsdist/tcpClie' (tid=120471, running) created by main thread at:
    #0 pthread_create /usr/src/debug/gcc/gcc/libsanitizer/tsan/tsan_interceptors_posix.cpp:1036 (libtsan.so.2+0x44219) (BuildId: 7e8fcb9ed0a63b98f2293e37c92ac955413efd9e)
    #1 __gthread_create /usr/src/debug/gcc/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:663 (libstdc++.so.6+0xe1a29) (BuildId: 207eb738c5976dd9aac1ae0640fc4de5946b547e)
    #2 std::thread::_M_start_thread(std::unique_ptr<std::thread::_State, std::default_delete<std::thread::_State> >, void (*)()) /usr/src/debug/gcc/gcc/libstdc++-v3/src/c++11/thread.cc:172 (libstdc++.so.6+0xe1a29)
    #3 TCPClientCollection::addTCPClientThread(std::vector<ClientState*, std::allocator<ClientState*> >&) /work/pdns/pdns/dnsdistdist/dnsdist-tcp.cc:149 (dnsdist+0x8685a1) (BuildId: ad82581368352777fda41d4b4145ba8ec738044c)
    #4 TCPClientCollection::TCPClientCollection(unsigned long, std::vector<ClientState*, std::allocator<ClientState*> >) /work/pdns/pdns/dnsdistdist/dnsdist-tcp.cc:126 (dnsdist+0x868912) (BuildId: ad82581368352777fda41d4b4145ba8ec738044c)
    #5 std::__detail::_MakeUniq<TCPClientCollection>::__single_object std::make_unique<TCPClientCollection, unsigned long&, std::vector<ClientState*, std::allocator<ClientState*> > >(unsigned long&, std::vector<ClientState*, std::allocator<ClientState*> >&&) /usr/include/c++/13.2.1/bits/unique_ptr.h:1070 (dnsdist+0x20adef) (BuildId: ad82581368352777fda41d4b4145ba8ec738044c)
    #6 main /work/pdns/pdns/dnsdistdist/dnsdist.cc:2865 (dnsdist+0x20adef)

  Thread T3 'dnsdist/tcpClie' (tid=120470, running) created by main thread at:
    #0 pthread_create /usr/src/debug/gcc/gcc/libsanitizer/tsan/tsan_interceptors_posix.cpp:1036 (libtsan.so.2+0x44219) (BuildId: 7e8fcb9ed0a63b98f2293e37c92ac955413efd9e)
    #1 __gthread_create /usr/src/debug/gcc/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:663 (libstdc++.so.6+0xe1a29) (BuildId: 207eb738c5976dd9aac1ae0640fc4de5946b547e)
    #2 std::thread::_M_start_thread(std::unique_ptr<std::thread::_State, std::default_delete<std::thread::_State> >, void (*)()) /usr/src/debug/gcc/gcc/libstdc++-v3/src/c++11/thread.cc:172 (libstdc++.so.6+0xe1a29)
    #3 TCPClientCollection::addTCPClientThread(std::vector<ClientState*, std::allocator<ClientState*> >&) /work/pdns/pdns/dnsdistdist/dnsdist-tcp.cc:149 (dnsdist+0x8685a1) (BuildId: ad82581368352777fda41d4b4145ba8ec738044c)
    #4 TCPClientCollection::TCPClientCollection(unsigned long, std::vector<ClientState*, std::allocator<ClientState*> >) /work/pdns/pdns/dnsdistdist/dnsdist-tcp.cc:126 (dnsdist+0x868912) (BuildId: ad82581368352777fda41d4b4145ba8ec738044c)
    #5 std::__detail::_MakeUniq<TCPClientCollection>::__single_object std::make_unique<TCPClientCollection, unsigned long&, std::vector<ClientState*, std::allocator<ClientState*> > >(unsigned long&, std::vector<ClientState*, std::allocator<ClientState*> >&&) /usr/include/c++/13.2.1/bits/unique_ptr.h:1070 (dnsdist+0x20adef) (BuildId: ad82581368352777fda41d4b4145ba8ec738044c)
    #6 main /work/pdns/pdns/dnsdistdist/dnsdist.cc:2865 (dnsdist+0x20adef)

SUMMARY: ThreadSanitizer: data race /work/pdns/pdns/dnsdistdist/tcpiohandler.cc:106 in OpenSSLTLSConnection::OpenSSLTLSConnection(int, timeval const&, std::shared_ptr<OpenSSLFrontendContext>)
```
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