Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Updated sighandler patch #1

Open
wants to merge 1,373 commits into
base: sighandler
Choose a base branch
from

Conversation

bbockelm
Copy link

Hi Zhe,

This is a merge of master into your branch plus a small tweak. Everything else looks good.

Brian

Axel-Naumann and others added 30 commits February 5, 2016 11:27
…ould do it explicitlyly (at least for the time being since Vc is not mandatory for ROOT)
…reads

o CMakeLists modify to take into account the new files
o Factorise the finding of the thread index and the TThreadedObject class
  - TBB will be easily pluggable if required
o Tutorial which shows how to fill histograms in parallel from multiple threads
  - "Symmetric" to mp201 where the TMultiProc class is used
Remove white spaces
omazapa and others added 24 commits March 16, 2016 10:26
- Do not tell users the first few frames are relevant - likely not true
  in the case of a multithreaded application (i.e., if Xrootd client is
  loaded).
- Do not wait for GDB to complete in the case where it takes more than 5
  minutes.  On timeouts, give a reasonable error message.
@zzxuanyuan
Copy link
Owner

Hi Brian,

@bbockelm 'sighandler' is the old pull request without decoupling TSigHandling out of TSystem. my latest implementation is the branch called 'sigtest'. Could you review that branch instead?

I am going to write test case for 'sigtest', thanks!

Zhe

zzxuanyuan pushed a commit that referenced this pull request Sep 12, 2017
This fixes a race condition in which a TTreeReader and its
TTreeReaderValues could be deleted concurrently:
Thread #1) a task ends and pushes back processing slot
Thread root-project#2) a task starts and overwrites thread-local TTreeReaderValues
Thread #1) first task deletes TTreeReader
zzxuanyuan pushed a commit that referenced this pull request Feb 12, 2019
…transactions.

This fixes https://sft.its.cern.ch/jira/browse/ROOT-9672 by having
cling::Interpreter::DeclareCFunction return the transaction containing the
compiled code.

With the previous code, cling::Interpreter::compileFunction will get confused by
transaction created during the callbacks executed during the
cling::IncrementalParser::commitTransaction of the main transaction.

Reproducer:

With a main composed of 'only':

int main(int argc, char ** argv)
{
  char const * class_string = (argc == 2) ? argv[1] : "std::vector<int>";
  auto const result [[gnu::unused]] = TClass::GetClass(class_string);
  return 0;
}

which is a representation of real use case (in a more complex setup) in ART.
We were getting:

Error in <TClingCallFunc::make_wrapper>: Failed to compile
  ==== SOURCE BEGIN ====
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wformat-security"
__attribute__((used)) extern "C" void __cf_0(void* obj, int nargs, void** args, void* ret)
{
   if (ret) {
      (*(TStreamerInfo**)ret) = new TStreamerInfo();
      return;
   }
   else {
      new TStreamerInfo();
      return;
   }
}
#pragma clang diagnostic pop
  ==== SOURCE END ====
Error in <TClingCallFunc::ExecT>: Called with no wrapper, not implemented!
Error in <TVirtualStreamerInfo::Factory>: The plugin handler for TVirtualStreamerInfo was found but failed to create the factory object!

The reason is that during TClingCallFunc::make_wrapper, the call to cling::Interpreter::compileFunction ends with:

    if (const llvm::GlobalValue* GV
        = getLastTransaction()->getModule()->getNamedValue(name))

However in the 'broken' case, the getLastTransaction does not return the transaction for the code being compiled by DeclareCFunction but instead the one used/created at:

#0  cling::IncrementalParser::endTransaction (this=0x4a2980, T=0x8c0fb0) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/IncrementalParser.cpp:345
#1  0x00007fffeebc7899 in cling::Interpreter::PushTransactionRAII::pop (this=0x7fffffffcb00) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/Interpreter.cpp:111
root-project#2  0x00007fffeebc785e in cling::Interpreter::PushTransactionRAII::~PushTransactionRAII (this=0x7fffffffcb00, __in_chrg=<optimized out>)
    at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/Interpreter.cpp:106
root-project#3  0x00007fffeebeb659 in cling::LookupHelper::findScope (this=0x4a9dd0, className=..., diagOnOff=cling::LookupHelper::NoDiagnostics, resultType=0x7fffffffcd08, instantiateTemplate=false)
    at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/LookupHelper.cpp:466
root-project#4  0x00007fffeeabe0df in TCling::CheckClassInfo (this=0x4a0550, name=<optimized out>, autoload=<optimized out>, isClassOrNamespaceOnly=<optimized out>)
    at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TCling.cxx:3630
root-project#5  0x00007ffff7c3040d in TClass::Init (this=this@entry=0xdafd20, name=name@entry=0x7ffff7cb7638 "TGlobal", cversion=cversion@entry=2, typeinfo=typeinfo@entry=0x7ffff7d8b6d8 <typeinfo for TGlobal>, isa=isa@entry=0x477430,
    dfil=dfil@entry=0x7ffff7cb8cab "TGlobal.h", ifil=<optimized out>, dl=<optimized out>, il=<optimized out>, givenInfo=<optimized out>, silent=<optimized out>)
    at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TClass.cxx:1431
root-project#6  0x00007ffff7c3a1b8 in TClass::TClass (this=0xdafd20, name=0x7ffff7cb7638 "TGlobal", cversion=<optimized out>, info=..., isa=0x477430, dfil=0x7ffff7cb8cab "TGlobal.h",
    ifil=0x7ffff7cccf88 "/local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TGlobal.cxx", dl=27, il=25, silent=false) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TClass.cxx:1273
root-project#7  0x00007ffff7c3a72a in ROOT::CreateClass (cname=0x7ffff7cb7638 "TGlobal", id=id@entry=2, info=..., isa=isa@entry=0x477430, dfil=dfil@entry=0x7ffff7cb8cab "TGlobal.h",
    ifil=ifil@entry=0x7ffff7cccf88 "/local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TGlobal.cxx", dl=27, il=25) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TClass.cxx:5607
root-project#8  0x00007ffff7c4b552 in ROOT::Internal::TDefaultInitBehavior::CreateClass (il=25, dl=27, ifil=0x7ffff7cccf88 "/local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TGlobal.cxx", dfil=0x7ffff7cb8cab "TGlobal.h",
    isa=0x477430, info=..., id=2, cname=<optimized out>, this=0x7ffff7da7508 <ROOT::Internal::DefineBehavior(void*, void*)::theDefault>) at /home/pcanal/root_builds/v6-14-00-patches/opt/include/Rtypes.h:176
root-project#9  ROOT::TGenericClassInfo::GetClass (this=0x7ffff7dab660 <ROOT::GenerateInitInstanceLocal(TGlobal const*)::instance>) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TGenericClassInfo.cxx:250
root-project#10 0x00007ffff7b1a2d8 in TGlobal::Class () at /home/pcanal/root_builds/v6-14-00-patches/opt/core/base/G__Core.cxx:17156
root-project#11 0x00007ffff7ac01de in TGlobal::IsA (this=0xee3bc0) at /home/pcanal/root_builds/v6-14-00-patches/opt/include/TGlobal.h:48
root-project#12 TGlobal::CheckTObjectHashConsistency (this=0xee3bc0) at /home/pcanal/root_builds/v6-14-00-patches/opt/include/TGlobal.h:48
root-project#13 0x00007ffff7be9dcd in TObject::CheckedHash (this=0xee3bc0) at /home/pcanal/root_builds/v6-14-00-patches/opt/include/TObject.h:314
root-project#14 THashTable::GetCheckedHashValue (this=0xe65a20, obj=0xee3bc0) at /home/pcanal/root_builds/v6-14-00-patches/opt/include/THashTable.h:94
root-project#15 THashTable::Add (this=0xe65a20, obj=0xee3bc0) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/cont/src/THashTable.cxx:96
root-project#16 0x00007ffff7be6bf1 in THashList::AddLast (this=this@entry=0x5be690, obj=obj@entry=0xee3bc0) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/cont/src/THashList.cxx:100
root-project#17 0x00007ffff7c4e0d1 in TListOfDataMembers::AddLast (this=0x5be690, obj=0xee3bc0) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TListOfDataMembers.cxx:103
root-project#18 0x00007ffff7ab8785 in TList::Add (obj=0xee3bc0, this=0x5be690) at /home/pcanal/root_builds/v6-14-00-patches/opt/include/TList.h:87
root-project#19 TROOT::GetListOfGlobals (this=0x7ffff7da7a60 <ROOT::Internal::GetROOT1()::alloc>, load=load@entry=false) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/base/src/TROOT.cxx:1767
root-project#20 0x00007fffeeab1058 in TCling::HandleNewDecl (this=0x4a0550, DV=0xedf238, isDeserialized=isDeserialized@entry=true, modifiedTClasses=...) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TCling.cxx:555
root-project#21 0x00007fffeeabb785 in TCling::UpdateListsOnCommitted (this=0x4a0550, T=...) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TCling.cxx:6115
root-project#22 0x00007fffeebd0103 in cling::MultiplexInterpreterCallbacks::TransactionCommitted (this=0x57fe20, T=...) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/MultiplexInterpreterCallbacks.h:76
root-project#23 0x00007fffeed05d71 in cling::IncrementalParser::commitTransaction (this=0x4a2980, PRT=..., ClearDiagClient=true) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/IncrementalParser.cpp:532
root-project#24 0x00007fffeed06399 in cling::IncrementalParser::Compile (this=0x4a2980, input=..., Opts=...) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/IncrementalParser.cpp:663
root-project#25 0x00007fffeebcbc4e in cling::Interpreter::DeclareInternal (this=0x4a0f30, input=..., CO=..., T=0x7fffffffd680) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/Interpreter.cpp:1195
root-project#26 0x00007fffeebca8e8 in cling::Interpreter::declare (this=0x4a0f30, input=..., T=0x7fffffffd680) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/Interpreter.cpp:823
root-project#27 0x00007fffeebcb560 in cling::Interpreter::DeclareCFunction (this=0x4a0f30, name=..., code=..., withAccessControl=true) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/Interpreter.cpp:1096
root-project#28 0x00007fffeebcb862 in cling::Interpreter::compileFunction (this=0x4a0f30, name=..., code=..., ifUnique=false, withAccessControl=true)
    at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/Interpreter.cpp:1140
root-project#29 0x00007fffeeafb83c in TClingCallFunc::compile_wrapper (withAccessControl=true, wrapper=..., wrapper_name=..., this=0xcf3c10) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TClingCallFunc.cxx:270
root-project#30 TClingCallFunc::make_wrapper (this=this@entry=0xcf3c10) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TClingCallFunc.cxx:1096
root-project#31 0x00007fffeeafbcb8 in TClingCallFunc::IFacePtr (this=this@entry=0xcf3c10) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TClingCallFunc.cxx:2233
root-project#32 0x00007fffeeafbe83 in TClingCallFunc::ExecT<long> (address=0x0, this=0xcf3c10) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TClingCallFunc.cxx:2045
root-project#33 TClingCallFunc::ExecInt (this=0xcf3c10, address=0x0) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TClingCallFunc.cxx:2065
root-project#34 0x00007ffff7c56e8d in TMethodCall::Execute (this=0xd97710, object=<optimized out>, retLong=@0x7fffffffd958: 0) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TMethodCall.cxx:457
root-project#35 0x0000000000401009 in TMethodCall::Execute(long&) ()
root-project#36 0x00000000004010ea in long TPluginHandler::ExecPluginImpl<>() ()
root-project#37 0x000000000040106d in long TPluginHandler::ExecPlugin<>(int) ()
root-project#38 0x0000000000400e21 in mytest() ()
root-project#39 0x0000000000400e92 in main ()
zzxuanyuan pushed a commit that referenced this pull request Mar 28, 2019
…urrently

in a nutshell, the condition was:
- Thread #1) a task ends and pushes back processing slot
- Thread root-project#2) a task starts and overwrites thread-local TTreeReaderValues
- Thread #1) first task deletes TTreeReader

See root-project@26e8ace
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

Successfully merging this pull request may close these issues.