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https://issues.apache.org/jira/browse/DISPATCH-1956?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17347701#comment-17347701
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Ken Giusti commented on DISPATCH-1956:
--------------------------------------
[^tsan.supp]
I'm using current main HEAD. I built the qdrouter using
-DCMAKE_BUILD_TYPE=RelWithDebInfo and -DRUNTIME_CHECK=tsan
I can trigger it when running the system_tests_router_mesh:
$ ctest -V -R mesh
Try using the attached tsan.supp file. I've been updating this file by testing
against the main branch, and will eventually check it in. It already has the
proper deadlock suppression for DISPATCH-1956 commented out.
> Potential deadlock: logging lock vs entity cache lock
> -----------------------------------------------------
>
> Key: DISPATCH-1956
> URL: https://issues.apache.org/jira/browse/DISPATCH-1956
> Project: Qpid Dispatch
> Issue Type: Bug
> Components: Router Node
> Affects Versions: 1.15.0
> Reporter: Ken Giusti
> Assignee: Michael Goulish
> Priority: Major
> Labels: deadlock, tsan
> Fix For: 1.17.0
>
> Attachments: tsan.supp
>
>
> {noformat}
> WARNING: ThreadSanitizer: lock-order-inversion (potential deadlock)
> (pid=1474955)
> Cycle in lock order graph: M11 (0x7b10000002c0) => M9 (0x7b1000000240) =>
> M11
>
> Mutex M9 acquired here while holding mutex M11 in main thread:
> #0 pthread_mutex_lock <null> (libtsan.so.0+0x528ac)
> #1 sys_mutex_lock
> /home/kgiusti/work/dispatch/qpid-dispatch/src/posix/threading.c:57
> (libqpid-dispatch.so+0x8cb7d)
> #2 push_event
> /home/kgiusti/work/dispatch/qpid-dispatch/src/entity_cache.c:63
> (libqpid-dispatch.so+0x6fa13)
> #3 qd_entity_cache_add
> /home/kgiusti/work/dispatch/qpid-dispatch/src/entity_cache.c:69
> (libqpid-dispatch.so+0x6fc26)
> #4 qd_alloc_init
> /home/kgiusti/work/dispatch/qpid-dispatch/src/alloc_pool.c:302
> (libqpid-dispatch.so+0x5878b)
> #5 qd_alloc /home/kgiusti/work/dispatch/qpid-dispatch/src/alloc_pool.c:318
> (libqpid-dispatch.so+0x5878b)
> #6 new_qd_log_entry_t /home/kgiusti/work/dispatch/qpid-dispatch/src/log.c:61
> (libqpid-dispatch.so+0x75891)
> #7 qd_vlog_impl /home/kgiusti/work/dispatch/qpid-dispatch/src/log.c:426
> (libqpid-dispatch.so+0x76205)
> #8 qd_log_impl /home/kgiusti/work/dispatch/qpid-dispatch/src/log.c:453
> (libqpid-dispatch.so+0x76580)
> #9 qd_python_log
> /home/kgiusti/work/dispatch/qpid-dispatch/src/python_embedded.c:547
> (libqpid-dispatch.so+0x8d1cb)
> #10 <null> <null> (libpython3.8.so.1.0+0x12a23b)
> #11 main_process
> /home/kgiusti/work/dispatch/qpid-dispatch/router/src/main.c:95
> (qdrouterd+0x40281c)
> #12 main /home/kgiusti/work/dispatch/qpid-dispatch/router/src/main.c:367
> (qdrouterd+0x4024fc)
>
> Hint: use TSAN_OPTIONS=second_deadlock_stack=1 to get more informative
> warning message
>
> Mutex M11 acquired here while holding mutex M9 in main thread:
> #0 pthread_mutex_lock <null> (libtsan.so.0+0x528ac)
> #1 sys_mutex_lock
> /home/kgiusti/work/dispatch/qpid-dispatch/src/posix/threading.c:57
> (libqpid-dispatch.so+0x8cb7d)
> #2 qd_vlog_impl /home/kgiusti/work/dispatch/qpid-dispatch/src/log.c:425
> (libqpid-dispatch.so+0x76200)
> #3 qd_log_impl /home/kgiusti/work/dispatch/qpid-dispatch/src/log.c:453
> (libqpid-dispatch.so+0x76580)
> #4 qd_python_log
> /home/kgiusti/work/dispatch/qpid-dispatch/src/python_embedded.c:547
> (libqpid-dispatch.so+0x8d1cb)
> #5 <null> <null> (libpython3.8.so.1.0+0x12a23b)
> #6 main_process
> /home/kgiusti/work/dispatch/qpid-dispatch/router/src/main.c:95
> (qdrouterd+0x40281c)
> #7 main /home/kgiusti/work/dispatch/qpid-dispatch/router/src/main.c:367
> (qdrouterd+0x4024fc)
>
> SUMMARY: ThreadSanitizer: lock-order-inversion (potential deadlock)
> (/lib64/libtsan.so.0+0x528ac) in __interceptor_pthread_mutex_lock
> {noformat}
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