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https://issues.apache.org/jira/browse/PROTON-2273?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jiri Daněk updated PROTON-2273:
-------------------------------
Component/s: proton-c
> Test c-threaderciser can get stuck
> ----------------------------------
>
> Key: PROTON-2273
> URL: https://issues.apache.org/jira/browse/PROTON-2273
> Project: Qpid Proton
> Issue Type: Bug
> Components: proton-c
> Affects Versions: proton-c-0.32.0
> Reporter: Jiri Daněk
> Priority: Major
>
> As observed in comments on PROTON-2225, the c-threaderciser test can
> occasionally get stuck.
> The following is output after I set {color:#cc7832}static
> {color}{color:#908b25}bool {color}debug_enable =
> {color:#908b25}true{color}{color:#cc7832};{color} in the test source, and run
> the test under valgrind (as it seems to be more likely to get stuck when
> running under valgrind).
> {noformat}
> while true; do
> /usr/bin/python "/home/jdanek/repos/qpid/qpid-proton/scripts/env.py" "--"
> "TEST_EXE_PREFIX=/usr/bin/valgrind --tool=memcheck --leak-check=full
> --error-exitcode=42 --quiet
> --suppressions=/home/jdanek/repos/qpid/qpid-proton/tests/valgrind.supp"
> "/usr/bin/valgrind" "--tool=memcheck" "--leak-check=full"
> "--error-exitcode=42" "--quiet" --vgdb=yes
> "--suppressions=/home/jdanek/repos/qpid/qpid-proton/tests/valgrind.supp"
> "/home/jdanek/repos/qpid/qpid-proton/cmake-build-debug/c/tests/c-threaderciser"
> | tee cthreadlog.txt; done
> [...]
> threaderciser start: threads=8, time=1, actions=[listen, close-listen,
> connect, close-connect, wake, timeout, cancel-timeout]
> (4e2ab80) [0x4e2e220] listen
> (6a2e700) user_thread start
> (6a2e700) [0x4e2d140] timeout
> (722f700) proactor_thread start
> (8a32700) user_thread start
> (722f700) [0x4e2e220] listening on 0.0.0.0:36767
> (722f700) [0x4e31170] connect
> (8231700) proactor_thread start
> (7a30700) user_thread start
> (6a2e700) [0x4e3a480] connect
> (5a2c700) user_thread start
> (4e2ab80) shut down
> (5a2c700) user_thread end
> (8a32700) [0x4e30840] listen
> (622d700) proactor_thread start
> (8231700) [0x4e39b50] listen
> (7a30700) [0x4e3b360] listen
> (9233700) proactor_thread start
> (6a2e700) [0x4e3a480] wake
> (622d700) [0x4e30840] listening on 0.0.0.0:39411
> (622d700) [0x4e44e40] connect
> (8a32700) user_thread end
> (6a2e700) [0x4e2d140] timeout
> (9233700) [0x4e3b360] listening on 0.0.0.0:35627
> (9233700) [0x4e4d3f0] connect
> (6a2e700) user_thread end
> (7a30700) user_thread end
> (4e2ab80) disconnect
> (8231700) [0x4e39b50] listening on 0.0.0.0:45417
> (8231700) proactor_thread end
> [... I've let it run for over an hour at this point, but got no further
> output ...]{noformat}
> GDB says
> {noformat}
> (gdb) thread apply all bt
> Thread 4 (Thread 137904):
> #0 0x0000000004a1dd49 in epoll_wait (epfd=4, events=0x4e2db50, maxevents=16,
> timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
> #1 0x00000000048595ef in proactor_do_epoll (p=0x4e2d140,
> can_block=can_block@entry=true) at
> /home/jdanek/repos/qpid/qpid-proton/c/src/proactor/epoll.c:2623
> #2 0x0000000004859e6b in pn_proactor_wait (p=<optimized out>) at
> /home/jdanek/repos/qpid/qpid-proton/c/src/proactor/epoll.c:2802
> #3 0x000000000010afc6 in proactor_thread (void_g=0x1ffeffda50) at
> /home/jdanek/repos/qpid/qpid-proton/c/tests/threaderciser.c:474
> #4 0x00000000048d881f in start_thread (arg=<optimized out>) at
> pthread_create.c:477
> #5 0x0000000004a1d963 in clone () from /usr/lib64/haswell/libc.so.6
> Thread 3 (Thread 137900):
> #0 futex_wait_cancelable (private=<optimized out>, expected=0,
> futex_word=0x4e30304) at ../sysdeps/nptl/futex-internal.h:183
> #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x4e302b0,
> cond=0x4e302d8) at pthread_cond_wait.c:508
> #2 __pthread_cond_wait (cond=cond@entry=0x4e302d8,
> mutex=mutex@entry=0x4e302b0) at pthread_cond_wait.c:638
> #3 0x0000000004859bd4 in suspend (ts=0x4e302b0, p=0x4e2d140) at
> /home/jdanek/repos/qpid/qpid-proton/c/src/proactor/epoll.c:512
> #4 proactor_do_epoll (p=0x4e2d140, can_block=can_block@entry=true) at
> /home/jdanek/repos/qpid/qpid-proton/c/src/proactor/epoll.c:2740
> #5 0x0000000004859e6b in pn_proactor_wait (p=<optimized out>) at
> /home/jdanek/repos/qpid/qpid-proton/c/src/proactor/epoll.c:2802
> #6 0x000000000010afc6 in proactor_thread (void_g=0x1ffeffda50) at
> /home/jdanek/repos/qpid/qpid-proton/c/tests/threaderciser.c:474
> #7 0x00000000048d881f in start_thread (arg=<optimized out>) at
> pthread_create.c:477
> #8 0x0000000004a1d963 in clone () from /usr/lib64/haswell/libc.so.6
> Thread 2 (Thread 137898):
> #0 futex_wait_cancelable (private=<optimized out>, expected=0,
> futex_word=0x4e43520) at ../sysdeps/nptl/futex-internal.h:183
> #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x4e434d0,
> cond=0x4e434f8) at pthread_cond_wait.c:508
> #2 __pthread_cond_wait (cond=cond@entry=0x4e434f8,
> mutex=mutex@entry=0x4e434d0) at pthread_cond_wait.c:638
> #3 0x0000000004859bd4 in suspend (ts=0x4e434d0, p=0x4e2d140) at
> /home/jdanek/repos/qpid/qpid-proton/c/src/proactor/epoll.c:512
> #4 proactor_do_epoll (p=0x4e2d140, can_block=can_block@entry=true) at
> /home/jdanek/repos/qpid/qpid-proton/c/src/proactor/epoll.c:2740
> #5 0x0000000004859e6b in pn_proactor_wait (p=<optimized out>) at
> /home/jdanek/repos/qpid/qpid-proton/c/src/proactor/epoll.c:2802
> #6 0x000000000010afc6 in proactor_thread (void_g=0x1ffeffda50) at
> /home/jdanek/repos/qpid/qpid-proton/c/tests/threaderciser.c:474
> #7 0x00000000048d881f in start_thread (arg=<optimized out>) at
> pthread_create.c:477
> #8 0x0000000004a1d963 in clone () from /usr/lib64/haswell/libc.so.6
> Thread 1 (Thread 137869):
> #0 __pthread_clockjoin_ex (threadid=102946560, thread_return=0x1ffeffda48,
> clockid=<optimized out>, abstime=<optimized out>, block=<optimized out>) at
> pthread_join_common.c:145
> #1 0x000000000010b5ff in main (argc=argc@entry=1, argv=0x1ffeffda50,
> argv@entry=0x1ffeffdc98) at
> /home/jdanek/repos/qpid/qpid-proton/c/tests/threaderciser.c:583
> #2 0x000000000491d51d in __libc_start_main (main=0x10b225 <main>, argc=1,
> argv=0x1ffeffdc98, init=<optimized out>, fini=<optimized out>,
> rtld_fini=<optimized out>, stack_end=0x1ffeffdc88) at ../csu/libc-start.c:308
> #3 0x000000000010a3ce in _start ()
> {noformat}
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