Test test_buffer_node sporadically hangs on x86_64

[phprus]

Summary

Test test_buffer_node sporadically hangs on x86_64
Previous discussion: #1445 (comment)

@pavelkumbrasev , @kboyarinov

Version

Commit: 306c75f

Environment

OS: Debian 12
gcc version 12.2.0 (Debian 12.2.0-14)

Steps To Reproduce

cmake -DCMAKE_VERBOSE_MAKEFILE=ON -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCMAKE_CXX_STANDARD=20 -DCMAKE_INTERPROCEDURAL_OPTIMIZATION=ON ../..
cmake --build . --verbose --config Release -j8
ctest --timeout 0 --build-config RelWithDebInfo -R test_buffer_node --repeat-until-fail 10000000

Backtrace:

phprus@srv2:~$ gdb /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/build/cpp20rwd/gnu_12.2_cxx20_64_relwithdebinfo/test_buffer_node -p 2468289
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Reading symbols from /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/build/cpp20rwd/gnu_12.2_cxx20_64_relwithdebinfo/test_buffer_node...
Attaching to program: /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/build/cpp20rwd/gnu_12.2_cxx20_64_relwithdebinfo/test_buffer_node, process 2468289
[New LWP 2468290]
[New LWP 2468307]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
tbb::detail::d1::aggregating_functor<tbb::detail::d2::buffer_node<int>, tbb::detail::d2::buffer_node<int>::buffer_operation>::operator() (
    op_list=0x7ffff4159d90, this=0x7ffff4159fc0)
    at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/src/tbb/../../include/tbb/../oneapi/tbb/detail/_aggregator.h:167
167         my_object->handle_operations(op_list);
(gdb) thread 1
[Switching to thread 1 (Thread 0x7feac2c36940 (LWP 2468289))]
#0  tbb::detail::d1::aggregating_functor<tbb::detail::d2::buffer_node<int>, tbb::detail::d2::buffer_node<int>::buffer_operation>::operator() (
    op_list=0x7ffff4159d90, this=0x7ffff4159fc0)
    at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/src/tbb/../../include/tbb/../oneapi/tbb/detail/_aggregator.h:167
167         my_object->handle_operations(op_list);
(gdb) bt
#0  tbb::detail::d1::aggregating_functor<tbb::detail::d2::buffer_node<int>, tbb::detail::d2::buffer_node<int>::buffer_operation>::operator() (
    op_list=0x7ffff4159d90, this=0x7ffff4159fc0)
    at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/src/tbb/../../include/tbb/../oneapi/tbb/detail/_aggregator.h:167
#1  tbb::detail::d1::aggregator_generic<tbb::detail::d2::buffer_node<int>::buffer_operation>::start_handle_operations<tbb::detail::d1::aggregating_functor<tbb::detail::d2::buffer_node<int>, tbb::detail::d2::buffer_node<int>::buffer_operation> > (handle_operations=..., this=0x7ffff4159fb0)
    at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/src/tbb/../../include/tbb/../oneapi/tbb/detail/_aggregator.h:129
#2  tbb::detail::d1::aggregator_generic<tbb::detail::d2::buffer_node<int>::buffer_operation>::execute<tbb::detail::d1::aggregating_functor<tbb::detail::d2::buffer_node<int>, tbb::detail::d2::buffer_node<int>::buffer_operation> > (long_life_time=true, handle_operations=..., op=0x7ffff4159d90,
    this=0x7ffff4159fb0)
    at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/src/tbb/../../include/tbb/../oneapi/tbb/detail/_aggregator.h:87
#3  tbb::detail::d1::aggregator<tbb::detail::d1::aggregating_functor<tbb::detail::d2::buffer_node<int>, tbb::detail::d2::buffer_node<int>::buffer_operation>, tbb::detail::d2::buffer_node<int>::buffer_operation>::execute (op=0x7ffff4159d90, this=0x7ffff4159fb0)
    at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/src/tbb/../../include/tbb/../oneapi/tbb/detail/_aggregator.h:150
#4  tbb::detail::d2::buffer_node<int>::try_get (v=@0x7ffff4159cf8: -1, this=0x7ffff4159f20)
    at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/src/tbb/../../include/tbb/../oneapi/tbb/flow_graph.h:1422
#5  spin_try_get<int> (value=@0x7ffff4159cf8: -1, b=...)
    at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/test/tbb/test_buffer_node.cpp:37
#6  test_serial<int>() [clone .isra.0] () at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/test/tbb/test_buffer_node.cpp:395
#7  0x000055ae0c3ce04a in operator() (__closure=0x7ffff415a500)
    at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/test/tbb/test_buffer_node.cpp:468
#8  tbb::detail::d1::task_arena_function<DOCTEST_ANON_FUNC_326()::<lambda()>, void>::operator()(void) const (this=<optimized out>)
    at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/src/tbb/../../include/tbb/../oneapi/tbb/task_arena.h:68
#9  0x00007feac2c7ced1 in tbb::detail::r1::task_arena_impl::execute (ta=..., d=warning: RTTI symbol not found for class 'tbb::detail::d1::task_arena_function<DOCTEST_ANON_FUNC_326()::{lambda()#1}, void>'
...)
    at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/src/tbb/arena.cpp:822
#10 0x00007feac2c7d8f5 in tbb::detail::r1::execute (ta=..., d=...)
    at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/src/tbb/arena.cpp:519
#11 0x000055ae0c3bc2f4 in tbb::detail::d1::task_arena::execute_impl<void, DOCTEST_ANON_FUNC_326()::<lambda()> > (f=..., this=0x7ffff415a540)
    at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/src/tbb/../../include/tbb/../oneapi/tbb/task_arena.h:251
#12 tbb::detail::d1::task_arena::execute<DOCTEST_ANON_FUNC_326()::<lambda()> > (f=..., this=0x7ffff415a540)
    at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/src/tbb/../../include/tbb/../oneapi/tbb/task_arena.h:404
#13 DOCTEST_ANON_FUNC_326 () at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/test/tbb/test_buffer_node.cpp:466
#14 0x000055ae0c3c1f32 in doctest::Context::run (this=this@entry=0x7ffff415a9e0)
    at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/test/common/doctest.h:7060
#15 0x000055ae0c3ad58e in main (argc=<optimized out>, argv=<optimized out>)
    at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/test/common/doctest.h:7138
(gdb) thread 2
[Switching to thread 2 (Thread 0x7feac20aa6c0 (LWP 2468290))]
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
38  ../sysdeps/unix/sysv/linux/x86_64/syscall.S: No such file or directory.
(gdb) bt
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007feac2c8980c in tbb::detail::r1::futex_wait (comparand=2, futex=0x7feac23b6124)
    at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/src/tbb/semaphore.h:100
#2  tbb::detail::r1::binary_semaphore::P (this=0x7feac23b6124)
    at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/src/tbb/semaphore.h:253
#3  tbb::detail::r1::rml::internal::thread_monitor::wait (this=0x7feac23b6120)
    at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/src/tbb/rml_thread_monitor.h:235
#4  tbb::detail::r1::rml::private_worker::run (this=0x7feac23b6100)
    at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/src/tbb/private_server.cpp:273
#5  tbb::detail::r1::rml::private_worker::thread_routine (arg=0x7feac23b6100)
    at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/src/tbb/private_server.cpp:221
#6  0x00007feac27c9134 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#7  0x00007feac28497dc in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
(gdb) thread 3
[Switching to thread 3 (Thread 0x7feac1ca96c0 (LWP 2468307))]
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
38  in ../sysdeps/unix/sysv/linux/x86_64/syscall.S
(gdb) bt
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007feac2c8980c in tbb::detail::r1::futex_wait (comparand=2, futex=0x7feac23b60a4)
    at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/src/tbb/semaphore.h:100
#2  tbb::detail::r1::binary_semaphore::P (this=0x7feac23b60a4)
    at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/src/tbb/semaphore.h:253
#3  tbb::detail::r1::rml::internal::thread_monitor::wait (this=0x7feac23b60a0)
    at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/src/tbb/rml_thread_monitor.h:235
#4  tbb::detail::r1::rml::private_worker::run (this=0x7feac23b6080)
    at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/src/tbb/private_server.cpp:273
#5  tbb::detail::r1::rml::private_worker::thread_routine (arg=0x7feac23b6080)
    at /home/phprus/test/tbb/oneTBB-306c75f5e906fc221e12f45dae45900f0d8db6ba/src/tbb/private_server.cpp:221
#6  0x00007feac27c9134 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#7  0x00007feac28497dc in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
(gdb) thread 4
Unknown thread 4.

[pavelkumbrasev]

Hi @phprus, thank you for the reproduction of the bug.