Details
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Bug
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Status: Closed
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Major
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Resolution: Fixed
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proton-c-0.18.0
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None
Description
There is a lot of warnings about lock order on proton tests, that all result from a missing unlock in stop_polling().
diff --git a/proton-c/src/proactor/epoll.c b/proton-c/src/proactor/epoll.c index 46effcc7..887327dc 100644 --- a/proton-c/src/proactor/epoll.c +++ b/proton-c/src/proactor/epoll.c @@ -296,8 +296,10 @@ static bool start_polling(epoll_extended_t *ee, int epollfd) { static void stop_polling(epoll_extended_t *ee, int epollfd) { // TODO: check for error, return bool or just log? lock(&ee->mutex); - if (ee->fd == -1 || !ee->polling || epollfd == -1) + if (ee->fd == -1 || !ee->polling || epollfd == -1) { + unlock(&ee->mutex); return; + } struct epoll_event ev; ev.data.ptr = ee; ev.events = 0;
The warnings follow. TSan is enabled as described in PROTON-1540.
$ LD_PRELOAD=/path/to/gcc-7.1.0-lib/lib/libtsan.so TSAN_OPTIONS="color=always second_deadlock_stack=1" ctest -VV [...] 21: Test command: /home/jdanek/Work/repos/qpid-proton/build/proton-c/src/tests/c-proactor-tests 21: Test timeout computed to be: 1500 21: TEST: test_inactive(&t) 21: TEST: test_interrupt_timeout(&t) 21: TEST: test_errors(&t) 21: TEST: test_client_server(&t) 21: TEST: test_connection_wake(&t) 21: ================== 21: WARNING: ThreadSanitizer: lock-order-inversion (potential deadlock) (pid=687) 21: Cycle in lock order graph: M170 (0x7b70000014a0) => M173 (0x7b7000001558) => M170 21: 21: Mutex M173 acquired here while holding mutex M170 in main thread: 21: #0 pthread_mutex_lock <null> (libtsan.so.0+0x0000000385df) 21: #1 lock /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:112 (libqpid-proton.so.11+0x000000044f10) 21: #2 start_polling /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:286 (libqpid-proton.so.11+0x000000044f10) 21: #3 start_polling /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1194 (libqpid-proton.so.11+0x00000004513e) 21: #4 pconnection_start /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1178 (libqpid-proton.so.11+0x00000004513e) 21: #5 pn_listener_accept /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1611 (libqpid-proton.so.11+0x000000048cf2) 21: #6 listen_handler /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:328 (c-proactor-tests+0x000000405720) 21: #7 test_proactors_get /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:167 (c-proactor-tests+0x000000407490) 21: #8 test_proactors_run /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:183 (c-proactor-tests+0x00000040bf84) 21: #9 test_connection_wake /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:397 (c-proactor-tests+0x00000040bf84) 21: #10 main /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:1066 (c-proactor-tests+0x000000404371) 21: 21: Mutex M170 previously acquired by the same thread here: 21: #0 pthread_mutex_lock <null> (libtsan.so.0+0x0000000385df) 21: #1 lock /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:112 (libqpid-proton.so.11+0x000000048cd3) 21: #2 pn_listener_accept /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1608 (libqpid-proton.so.11+0x000000048cd3) 21: #3 listen_handler /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:328 (c-proactor-tests+0x000000405720) 21: #4 test_proactors_get /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:167 (c-proactor-tests+0x000000407490) 21: #5 test_proactors_run /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:183 (c-proactor-tests+0x00000040bf84) 21: #6 test_connection_wake /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:397 (c-proactor-tests+0x00000040bf84) 21: #7 main /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:1066 (c-proactor-tests+0x000000404371) 21: 21: Mutex M170 acquired here while holding mutex M173 in main thread: 21: #0 pthread_mutex_lock <null> (libtsan.so.0+0x0000000385df) 21: #1 lock /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:112 (libqpid-proton.so.11+0x00000004681f) 21: #2 pconnection_cleanup /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:790 (libqpid-proton.so.11+0x00000004681f) 21: #3 pconnection_forced_shutdown /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:829 (libqpid-proton.so.11+0x0000000494d9) 21: #4 pn_proactor_free /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1684 (libqpid-proton.so.11+0x0000000494d9) 21: #5 test_proactor_destroy /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:130 (c-proactor-tests+0x00000040c07f) 21: #6 test_connection_wake /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:406 (c-proactor-tests+0x00000040c07f) 21: #7 main /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:1066 (c-proactor-tests+0x000000404371) 21: 21: Mutex M173 previously acquired by the same thread here: 21: #0 pthread_mutex_lock <null> (libtsan.so.0+0x0000000385df) 21: #1 lock /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:112 (libqpid-proton.so.11+0x000000044dda) 21: #2 stop_polling /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:298 (libqpid-proton.so.11+0x000000044dda) 21: #3 pconnection_cleanup /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:788 (libqpid-proton.so.11+0x00000004680b) 21: #4 pconnection_forced_shutdown /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:829 (libqpid-proton.so.11+0x0000000494d9) 21: #5 pn_proactor_free /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1684 (libqpid-proton.so.11+0x0000000494d9) 21: #6 test_proactor_destroy /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:130 (c-proactor-tests+0x00000040c07f) 21: #7 test_connection_wake /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:406 (c-proactor-tests+0x00000040c07f) 21: #8 main /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:1066 (c-proactor-tests+0x000000404371) 21: 21: SUMMARY: ThreadSanitizer: lock-order-inversion (potential deadlock) (/nix/store/05ajcpmpia6imj82q7mqd8lvv1rc2hsm-gcc-7.1.0-lib/lib/libtsan.so.0+0x385df) in __interceptor_pthread_mutex_lock 21: ================== 21: ================== 21: WARNING: ThreadSanitizer: lock-order-inversion (potential deadlock) (pid=687) 21: Cycle in lock order graph: M150 (0x7b3400000010) => M151 (0x7b7400000010) => M150 21: 21: Mutex M151 acquired here while holding mutex M150 in main thread: 21: #0 pthread_mutex_lock <null> (libtsan.so.0+0x0000000385df) 21: #1 lock /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:112 (libqpid-proton.so.11+0x000000044f10) 21: #2 start_polling /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:286 (libqpid-proton.so.11+0x000000044f10) 21: #3 start_polling /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1399 (libqpid-proton.so.11+0x000000048494) 21: #4 pn_proactor_listen /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1399 (libqpid-proton.so.11+0x000000048494) 21: #5 test_listen /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:219 (c-proactor-tests+0x000000408935) 21: #6 test_connection_wake /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:379 (c-proactor-tests+0x00000040bddd) 21: #7 main /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:1066 (c-proactor-tests+0x000000404371) 21: 21: Mutex M150 previously acquired by the same thread here: 21: #0 pthread_mutex_lock <null> (libtsan.so.0+0x0000000385df) 21: #1 lock /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:112 (libqpid-proton.so.11+0x000000047fc6) 21: #2 pn_proactor_listen /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1360 (libqpid-proton.so.11+0x000000047fc6) 21: #3 test_listen /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:219 (c-proactor-tests+0x000000408935) 21: #4 test_connection_wake /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:379 (c-proactor-tests+0x00000040bddd) 21: #5 main /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:1066 (c-proactor-tests+0x000000404371) 21: 21: Mutex M150 acquired here while holding mutex M151 in main thread: 21: #0 pthread_mutex_lock <null> (libtsan.so.0+0x0000000385df) 21: #1 lock /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:112 (libqpid-proton.so.11+0x000000048794) 21: #2 pn_listener_free /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1445 (libqpid-proton.so.11+0x000000048794) 21: #3 listener_forced_shutdown /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1489 (libqpid-proton.so.11+0x0000000493e9) 21: #4 pn_proactor_free /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1687 (libqpid-proton.so.11+0x0000000493e9) 21: #5 test_proactor_destroy /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:130 (c-proactor-tests+0x00000040c07f) 21: #6 test_connection_wake /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:406 (c-proactor-tests+0x00000040c07f) 21: #7 main /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:1066 (c-proactor-tests+0x000000404371) 21: 21: Mutex M151 previously acquired by the same thread here: 21: #0 pthread_mutex_lock <null> (libtsan.so.0+0x0000000385df) 21: #1 lock /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:112 (libqpid-proton.so.11+0x000000044dda) 21: #2 stop_polling /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:298 (libqpid-proton.so.11+0x000000044dda) 21: #3 listener_begin_close /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1463 (libqpid-proton.so.11+0x00000004585b) 21: #4 listener_begin_close /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1457 (libqpid-proton.so.11+0x0000000493be) 21: #5 listener_forced_shutdown /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1484 (libqpid-proton.so.11+0x0000000493be) 21: #6 pn_proactor_free /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1687 (libqpid-proton.so.11+0x0000000493be) 21: #7 test_proactor_destroy /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:130 (c-proactor-tests+0x00000040c07f) 21: #8 test_connection_wake /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:406 (c-proactor-tests+0x00000040c07f) 21: #9 main /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:1066 (c-proactor-tests+0x000000404371) 21: 21: SUMMARY: ThreadSanitizer: lock-order-inversion (potential deadlock) (/nix/store/05ajcpmpia6imj82q7mqd8lvv1rc2hsm-gcc-7.1.0-lib/lib/libtsan.so.0+0x385df) in __interceptor_pthread_mutex_lock 21: ================== 21: TEST: test_ipv4_ipv6(&t) 21: TEST: test_release_free(&t) 21: ================== 21: WARNING: ThreadSanitizer: lock-order-inversion (potential deadlock) (pid=687) 21: Cycle in lock order graph: M304 (0x7b70000004a0) => M307 (0x7b7000000558) => M304 21: 21: Mutex M307 acquired here while holding mutex M304 in main thread: 21: #0 pthread_mutex_lock <null> (libtsan.so.0+0x0000000385df) 21: #1 lock /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:112 (libqpid-proton.so.11+0x000000044f10) 21: #2 start_polling /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:286 (libqpid-proton.so.11+0x000000044f10) 21: #3 start_polling /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1194 (libqpid-proton.so.11+0x00000004513e) 21: #4 pconnection_start /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1178 (libqpid-proton.so.11+0x00000004513e) 21: #5 pconnection_maybe_connect_lh /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1208 (libqpid-proton.so.11+0x0000000460da) 21: #6 pn_proactor_connect /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1269 (libqpid-proton.so.11+0x000000047add) 21: #7 test_release_free /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:686 (c-proactor-tests+0x000000409ec4) 21: #8 main /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:1068 (c-proactor-tests+0x000000404475) 21: 21: Mutex M304 previously acquired by the same thread here: 21: #0 pthread_mutex_lock <null> (libtsan.so.0+0x0000000385df) 21: #1 lock /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:112 (libqpid-proton.so.11+0x0000000478b5) 21: #2 pn_proactor_connect /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1257 (libqpid-proton.so.11+0x0000000478b5) 21: #3 test_release_free /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:686 (c-proactor-tests+0x000000409ec4) 21: #4 main /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:1068 (c-proactor-tests+0x000000404475) 21: 21: Mutex M304 acquired here while holding mutex M307 in main thread: 21: #0 pthread_mutex_lock <null> (libtsan.so.0+0x0000000385df) 21: #1 lock /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:112 (libqpid-proton.so.11+0x00000004681f) 21: #2 pconnection_cleanup /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:790 (libqpid-proton.so.11+0x00000004681f) 21: #3 pconnection_forced_shutdown /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:829 (libqpid-proton.so.11+0x0000000494d9) 21: #4 pn_proactor_free /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1684 (libqpid-proton.so.11+0x0000000494d9) 21: #5 test_proactor_destroy /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:130 (c-proactor-tests+0x00000040a084) 21: #6 test_release_free /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:706 (c-proactor-tests+0x00000040a084) 21: #7 main /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:1068 (c-proactor-tests+0x000000404475) 21: 21: Mutex M307 previously acquired by the same thread here: 21: #0 pthread_mutex_lock <null> (libtsan.so.0+0x0000000385df) 21: #1 lock /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:112 (libqpid-proton.so.11+0x000000044dda) 21: #2 stop_polling /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:298 (libqpid-proton.so.11+0x000000044dda) 21: #3 pconnection_cleanup /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:788 (libqpid-proton.so.11+0x00000004680b) 21: #4 pconnection_forced_shutdown /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:829 (libqpid-proton.so.11+0x0000000494d9) 21: #5 pn_proactor_free /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1684 (libqpid-proton.so.11+0x0000000494d9) 21: #6 test_proactor_destroy /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:130 (c-proactor-tests+0x00000040a084) 21: #7 test_release_free /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:706 (c-proactor-tests+0x00000040a084) 21: #8 main /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:1068 (c-proactor-tests+0x000000404475) 21: 21: SUMMARY: ThreadSanitizer: lock-order-inversion (potential deadlock) (/nix/store/05ajcpmpia6imj82q7mqd8lvv1rc2hsm-gcc-7.1.0-lib/lib/libtsan.so.0+0x385df) in __interceptor_pthread_mutex_lock 21: ================== 21: ================== 21: WARNING: ThreadSanitizer: lock-order-inversion (potential deadlock) (pid=687) 21: Cycle in lock order graph: M310 (0x7b70000014a0) => M313 (0x7b7000001558) => M310 21: 21: Mutex M313 acquired here while holding mutex M310 in main thread: 21: #0 pthread_mutex_lock <null> (libtsan.so.0+0x0000000385df) 21: #1 lock /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:112 (libqpid-proton.so.11+0x000000044f10) 21: #2 start_polling /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:286 (libqpid-proton.so.11+0x000000044f10) 21: #3 start_polling /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1194 (libqpid-proton.so.11+0x00000004513e) 21: #4 pconnection_start /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1178 (libqpid-proton.so.11+0x00000004513e) 21: #5 pn_listener_accept /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1611 (libqpid-proton.so.11+0x000000048cf2) 21: #6 listen_handler /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:328 (c-proactor-tests+0x000000405720) 21: #7 test_proactors_get /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:167 (c-proactor-tests+0x000000407490) 21: #8 test_proactors_run /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:183 (c-proactor-tests+0x000000409ed4) 21: #9 test_release_free /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:687 (c-proactor-tests+0x000000409ed4) 21: #10 main /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:1068 (c-proactor-tests+0x000000404475) 21: 21: Mutex M310 previously acquired by the same thread here: 21: #0 pthread_mutex_lock <null> (libtsan.so.0+0x0000000385df) 21: #1 lock /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:112 (libqpid-proton.so.11+0x000000048cd3) 21: #2 pn_listener_accept /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1608 (libqpid-proton.so.11+0x000000048cd3) 21: #3 listen_handler /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:328 (c-proactor-tests+0x000000405720) 21: #4 test_proactors_get /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:167 (c-proactor-tests+0x000000407490) 21: #5 test_proactors_run /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:183 (c-proactor-tests+0x000000409ed4) 21: #6 test_release_free /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:687 (c-proactor-tests+0x000000409ed4) 21: #7 main /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:1068 (c-proactor-tests+0x000000404475) 21: 21: Mutex M310 acquired here while holding mutex M313 in main thread: 21: #0 pthread_mutex_lock <null> (libtsan.so.0+0x0000000385df) 21: #1 lock /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:112 (libqpid-proton.so.11+0x00000004681f) 21: #2 pconnection_cleanup /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:790 (libqpid-proton.so.11+0x00000004681f) 21: #3 pconnection_forced_shutdown /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:829 (libqpid-proton.so.11+0x0000000494d9) 21: #4 pn_proactor_free /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1684 (libqpid-proton.so.11+0x0000000494d9) 21: #5 test_proactor_destroy /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:130 (c-proactor-tests+0x00000040a099) 21: #6 test_release_free /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:706 (c-proactor-tests+0x00000040a099) 21: #7 main /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:1068 (c-proactor-tests+0x000000404475) 21: 21: Mutex M313 previously acquired by the same thread here: 21: #0 pthread_mutex_lock <null> (libtsan.so.0+0x0000000385df) 21: #1 lock /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:112 (libqpid-proton.so.11+0x000000044dda) 21: #2 stop_polling /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:298 (libqpid-proton.so.11+0x000000044dda) 21: #3 pconnection_cleanup /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:788 (libqpid-proton.so.11+0x00000004680b) 21: #4 pconnection_forced_shutdown /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:829 (libqpid-proton.so.11+0x0000000494d9) 21: #5 pn_proactor_free /home/jdanek/Work/repos/qpid-proton/proton-c/src/proactor/epoll.c:1684 (libqpid-proton.so.11+0x0000000494d9) 21: #6 test_proactor_destroy /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:130 (c-proactor-tests+0x00000040a099) 21: #7 test_release_free /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:706 (c-proactor-tests+0x00000040a099) 21: #8 main /home/jdanek/Work/repos/qpid-proton/proton-c/src/tests/proactor.c:1068 (c-proactor-tests+0x000000404475) 21: 21: SUMMA [...]