Node don't stop on Ctrl-C

[ailisp]

On first Ctrl-C it has no effect, node continues to run. On second Ctrl-C, it says:

Got another SIGINT before trap is triggered on WebAssembly side, aborting
Aborted (core dumped)

Full log:

^C
Apr 19 15:33:41.793  INFO stats: #     501 GbaoFuRGnEexgT9EmE7RA5xHabBg5s98ZQsxZDFTNGv7 V/1  0/0/40 peers ⬇ 0 B/s ⬆ 0 B/s 1.70 bps 0 gas/s CPU: 11%, Mem: 223.3 MiB    
Apr 19 15:33:51.806  INFO stats: #     517 7xwHbnTwk7Yd13jVmHTM5Ghi6HbFCKTNZetTfwjHneRB V/1  0/0/40 peers ⬇ 0 B/s ⬆ 0 B/s 1.60 bps 0 gas/s CPU: 10%, Mem: 223.6 MiB    
Apr 19 15:34:01.823  INFO stats: #     534 5VyP9BYb6dv7xZzmokMUpJ7YBb2pMPdsQMG4ECRdSTRb V/1  0/0/40 peers ⬇ 0 B/s ⬆ 0 B/s 1.70 bps 0 gas/s CPU: 10%, Mem: 223.6 MiB    
Apr 19 15:34:11.829  INFO stats: #     550 CBMXUV1bMKShvwworr5xSk4ELibsjVRravuRUSRko359 V/1  0/0/40 peers ⬇ 0 B/s ⬆ 0 B/s 1.60 bps 0 gas/s CPU: 8%, Mem: 223.8 MiB    
Apr 19 15:34:21.834  INFO stats: #     566 8EndFfRedq2EKqSfHBaykyNAgCFufogkqhgAtgKBSZG2 V/1  0/0/40 peers ⬇ 0 B/s ⬆ 0 B/s 1.60 bps 0 gas/s CPU: 10%, Mem: 223.8 MiB    
Apr 19 15:34:31.845  INFO stats: #     583 3ZgbkV6ZJt1L5PYDBb6g8cW1bdBWEBmJSQC6DdZMf1n8 V/1  0/0/40 peers ⬇ 0 B/s ⬆ 0 B/s 1.70 bps 0 gas/s CPU: 11%, Mem: 223.8 MiB    
Apr 19 15:34:41.859  INFO stats: #     599 9yKcTawWDsy435YqHSktJhxqx8fxcT7EyJM9CTPtoCg4 V/1  0/0/40 peers ⬇ 0 B/s ⬆ 0 B/s 1.60 bps 0 gas/s CPU: 11%, Mem: 224.1 MiB    
^CGot another SIGINT before trap is triggered on WebAssembly side, aborting
Aborted (core dumped)

[ailisp]

Note, although the error indicate "trap is triggered on WebAssembly side" but I haven't figured out why this error message comes from. And, there's no transaction so no wasm runtime execution for a while before press "C-c". But this does related to wasm runtime: if this node has ever execute anything in wasm runtime since node restart and C-c, it stuck, otherwise it does not. I also got below core dump backtrace, also doesn't look very useful:

(gdb) bt
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#1  0x00007f5022f1d535 in __GI_abort () at abort.c:79
#2  0x00005633faa49477 in std::sys::unix::abort_internal ()
    at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0//library/std/src/sys/unix/mod.rs:237
#3  0x00005633faa40046 in std::process::abort ()
    at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0//library/std/src/process.rs:1784
#4  0x00005633f83e50c1 in wasmer_runtime_core_near::fault::sigint_handler (_signum=2, 
    _siginfo=0x7f502348daf0, _ucontext=0x7f502348d9c0)
    at /home/bo/.cargo/registry/src/github.aaakk.us.kg-1ecc6299db9ec823/wasmer-runtime-core-near-0.17.1/src/fault.rs:449
#5  <signal handler called>
#6  0x00007f5023015e3f in epoll_wait (epfd=3, events=0x5633fcf7ce70, maxevents=1024, timeout=61)
    at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
#7  0x00005633fa2461bd in mio::sys::unix::selector::epoll::Selector::select (self=0x7ffd996dd760, 
    events=0x7ffd996dc1a0, timeout=...)
    at /home/bo/.cargo/registry/src/github.aaakk.us.kg-1ecc6299db9ec823/mio-0.7.9/src/sys/unix/selector/epoll.rs:68
#8  0x00005633fa24404f in mio::poll::Poll::poll (self=0x7ffd996dd760, events=0x7ffd996dc1a0, timeout=...)
    at /home/bo/.cargo/registry/src/github.aaakk.us.kg-1ecc6299db9ec823/mio-0.7.9/src/poll.rs:314
#9  0x00005633fa1ac156 in tokio::io::driver::Driver::turn (self=0x7ffd996dd580, max_wait=...)
    at /home/bo/.cargo/registry/src/github.aaakk.us.kg-1ecc6299db9ec823/tokio-1.2.0/src/io/driver/mod.rs:162
#10 0x00005633fa1acc9a in <tokio::io::driver::Driver as tokio::park::Park>::park_timeout (
    self=0x7ffd996dd580, duration=...)
    at /home/bo/.cargo/registry/src/github.aaakk.us.kg-1ecc6299db9ec823/tokio-1.2.0/src/io/driver/mod.rs:238
#11 0x00005633fa1cb169 in <tokio::signal::unix::driver::Driver as tokio::park::Park>::park_timeout (
    self=0x7ffd996dd580, duration=...)
    at /home/bo/.cargo/registry/src/github.aaakk.us.kg-1ecc6299db9ec823/tokio-1.2.0/src/signal/unix/driver.rs:156
#12 0x00005633fa200329 in <tokio::process::imp::driver::Driver as tokio::park::Park>::park_timeout (
--Type <RET> for more, q to quit, c to continue without paging--
    self=0x7ffd996dd580, duration=...)
    at /home/bo/.cargo/registry/src/github.aaakk.us.kg-1ecc6299db9ec823/tokio-1.2.0/src/process/unix/driver.rs:86
#13 0x00005633fa184e8d in <tokio::park::either::Either<A,B> as tokio::park::Park>::park_timeout (
    self=0x7ffd996dd578, duration=...)
    at /home/bo/.cargo/registry/src/github.aaakk.us.kg-1ecc6299db9ec823/tokio-1.2.0/src/park/either.rs:37
#14 0x00005633fa1b25d0 in tokio::time::driver::Driver<P>::park_internal (self=0x7ffd996dd550, limit=...)
    at /home/bo/.cargo/registry/src/github.aaakk.us.kg-1ecc6299db9ec823/tokio-1.2.0/src/time/driver/mod.rs:219
#15 0x00005633fa1b3370 in <tokio::time::driver::Driver<P> as tokio::park::Park>::park (self=0x7ffd996dd550)
    at /home/bo/.cargo/registry/src/github.aaakk.us.kg-1ecc6299db9ec823/tokio-1.2.0/src/time/driver/mod.rs:391
#16 0x00005633fa184bab in <tokio::park::either::Either<A,B> as tokio::park::Park>::park (self=0x7ffd996dd548)
    at /home/bo/.cargo/registry/src/github.aaakk.us.kg-1ecc6299db9ec823/tokio-1.2.0/src/park/either.rs:30
#17 0x00005633fa1ae697 in <tokio::runtime::driver::Driver as tokio::park::Park>::park (self=0x7ffd996dd548)
    at /home/bo/.cargo/registry/src/github.aaakk.us.kg-1ecc6299db9ec823/tokio-1.2.0/src/runtime/driver.rs:198
#18 0x00005633fa1245b7 in tokio::runtime::basic_scheduler::Inner<P>::block_on::{{closure}} (
    scheduler=0x7ffd996dd510, context=0x7ffd996dd260)
    at /home/bo/.cargo/registry/src/github.aaakk.us.kg-1ecc6299db9ec823/tokio-1.2.0/src/runtime/basic_scheduler.rs:211
#19 0x00005633fa125fd5 in tokio::runtime::basic_scheduler::enter::{{closure}} ()
    at /home/bo/.cargo/registry/src/github.aaakk.us.kg-1ecc6299db9ec823/tokio-1.2.0/src/runtime/basic_scheduler.rs:266
#20 0x00005633fa12b1d2 in tokio::macros::scoped_tls::ScopedKey<T>::set (
    self=0x5633fbadad80 <tokio::runtime::basic_scheduler::CURRENT>, t=0x7ffd996dd260, f=...)
    at /home/bo/.cargo/registry/src/github.aaakk.us.kg-1ecc6299db9ec823/tokio-1.2.0/src/macros/scoped_tls.rs:61
#21 0x00005633fa125e78 in tokio::runtime::basic_scheduler::enter (scheduler=0x7ffd996dd510, f=...)
    at /home/bo/.cargo/registry/src/github.aaakk.us.kg-1ecc6299db9ec823/tokio-1.2.0/src/runtime/basic_scheduler.rs:266
#22 0x00005633fa12378e in tokio::runtime::basic_scheduler::Inner<P>::block_on (self=0x7ffd996dd510, 
    future=...)
    at /home/bo/.cargo/registry/src/github.aaakk.us.kg-1ecc6299db9ec823/tokio-1.2.0/src/runtime/basic_scheduler.rs:176
#23 0x00005633fa124b91 in tokio::runtime::basic_scheduler::InnerGuard<P>::block_on (self=0x7ffd996dd510, 
--Type <RET> for more, q to quit, c to continue without paging--
    future=...)
    at /home/bo/.cargo/registry/src/github.aaakk.us.kg-1ecc6299db9ec823/tokio-1.2.0/src/runtime/basic_scheduler.rs:405
#24 0x00005633fa124f84 in tokio::runtime::basic_scheduler::BasicScheduler<P>::block_on (self=0x7ffd996ddb20, 
    future=...)
    at /home/bo/.cargo/registry/src/github.aaakk.us.kg-1ecc6299db9ec823/tokio-1.2.0/src/runtime/basic_scheduler.rs:136
#25 0x00005633fa147163 in tokio::runtime::Runtime::block_on (self=0x7ffd996ddb18, future=...)
    at /home/bo/.cargo/registry/src/github.aaakk.us.kg-1ecc6299db9ec823/tokio-1.2.0/src/runtime/mod.rs:450
#26 0x00005633fa150753 in tokio::task::local::LocalSet::block_on (self=0x7ffd996ddad0, rt=0x7ffd996ddb18, 
    future=...) at /home/bo/.cargo/registry/src/github.aaakk.us.kg-1ecc6299db9ec823/tokio-1.2.0/src/task/local.rs:459
#27 0x00005633fa13a6f8 in actix_rt::runtime::Runtime::block_on (self=0x7ffd996ddad0, f=...)
    at /home/bo/.cargo/registry/src/github.aaakk.us.kg-1ecc6299db9ec823/actix-rt-2.1.0/src/runtime.rs:85
#28 0x00005633fa1543a0 in actix_rt::system::SystemRunner::run (self=...)
    at /home/bo/.cargo/registry/src/github.aaakk.us.kg-1ecc6299db9ec823/actix-rt-2.1.0/src/system.rs:167
#29 0x00005633f6cb9178 in neard::main () at /home/bo/workspace/nearcore/neard/src/main.rs:249
(gdb) 

[bowenwang1996]

related #3266

[matklad]

Huh, apparently wasmer 0.17 used to catch sigint for no good reason? wasmerio/wasmer#1552

This probably will be fixed with the transition to wasmer 1.0

[OnlyOneJMJQ]

Adding that on my machine there's a similar, but slightly different behavior: the first Ctrl+C does say it's gracefully exiting with stopping NEARCore, however the process continues to run, even outputting to the console. Manually killing the process stopped it.

Machine:

• WSL2 (Ubuntu 20.04 LTS) on Windows Home 10 20H2
• Started a localnet with scripts/start_localnet.py --nodocker --debug

[bowenwang1996]

Duplicate of #3266