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https://issues.apache.org/jira/browse/DISPATCH-2037?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ganesh Murthy resolved DISPATCH-2037.
-------------------------------------
    Resolution: Fixed

> [http2] Thread race accessing qdr_http2_connection_t pings in 
> system_tests_http2
> --------------------------------------------------------------------------------
>
>                 Key: DISPATCH-2037
>                 URL: https://issues.apache.org/jira/browse/DISPATCH-2037
>             Project: Qpid Dispatch
>          Issue Type: Bug
>    Affects Versions: 1.16.0
>            Reporter: Jiri Daněk
>            Assignee: Ganesh Murthy
>            Priority: Major
>              Labels: race-condition, tsan
>             Fix For: 1.17.0
>
>
> https://travis-ci.com/github/apache/qpid-dispatch/jobs/496286761#L6889
> {noformat}
> 68: WARNING: ThreadSanitizer: data race (pid=16868)
> 68:   Read of size 8 at 0x7b4800005fb0 by thread T4:
> 68:     #0 egress_conn_ping_sender 
> /home/travis/build/apache/qpid-dispatch/src/adaptors/http2/http2_adaptor.c:2228
>  (libqpid-dispatch.so+0xf3c6d)
> 68:     #1 egress_conn_ping_sender 
> /home/travis/build/apache/qpid-dispatch/src/adaptors/http2/http2_adaptor.c:2206
>  (libqpid-dispatch.so+0xf3c6d)
> 68:     #2 qd_timer_visit 
> /home/travis/build/apache/qpid-dispatch/src/timer.c:205 
> (libqpid-dispatch.so+0xefbd7)
> 68:     #3 handle /home/travis/build/apache/qpid-dispatch/src/server.c:1008 
> (libqpid-dispatch.so+0xea5de)
> 68:     #4 thread_run 
> /home/travis/build/apache/qpid-dispatch/src/server.c:1122 
> (libqpid-dispatch.so+0xec477)
> 68:     #5 _thread_init 
> /home/travis/build/apache/qpid-dispatch/src/posix/threading.c:174 
> (libqpid-dispatch.so+0x94e86)
> 68:     #6 <null> <null> (libtsan.so.0+0x2d1af)
> 68: 
> 68:   Previous write of size 8 at 0x7b4800005fb0 by thread T3:
> 68:     #0 handle_connection_event 
> /home/travis/build/apache/qpid-dispatch/src/adaptors/http2/http2_adaptor.c:2447
>  (libqpid-dispatch.so+0xfe9fd)
> 68:     #1 handle_event_with_context 
> /home/travis/build/apache/qpid-dispatch/src/server.c:804 
> (libqpid-dispatch.so+0xea569)
> 68:     #2 do_handle_raw_connection_event 
> /home/travis/build/apache/qpid-dispatch/src/server.c:810 
> (libqpid-dispatch.so+0xea569)
> 68:     #3 handle /home/travis/build/apache/qpid-dispatch/src/server.c:1090 
> (libqpid-dispatch.so+0xea569)
> 68:     #4 thread_run 
> /home/travis/build/apache/qpid-dispatch/src/server.c:1122 
> (libqpid-dispatch.so+0xec477)
> 68:     #5 _thread_init 
> /home/travis/build/apache/qpid-dispatch/src/posix/threading.c:174 
> (libqpid-dispatch.so+0x94e86)
> 68:     #6 <null> <null> (libtsan.so.0+0x2d1af)
> 68: 
> 68:   Location is heap block of size 384 at 0x7b4800005e80 allocated by main 
> thread:
> 68:     #0 posix_memalign <null> (libtsan.so.0+0x3048d)
> 68:     #1 qd_alloc 
> /home/travis/build/apache/qpid-dispatch/src/alloc_pool.c:395 
> (libqpid-dispatch.so+0x5f5d4)
> 68:     #2 new_qdr_http2_connection_t 
> /home/travis/build/apache/qpid-dispatch/src/adaptors/http2/http2_adaptor.c:52 
> (libqpid-dispatch.so+0xf66c5)
> 68:     #3 qdr_http_connection_egress 
> /home/travis/build/apache/qpid-dispatch/src/adaptors/http2/http2_adaptor.c:2312
>  (libqpid-dispatch.so+0xfece5)
> 68:     #4 qd_http2_configure_connector 
> /home/travis/build/apache/qpid-dispatch/src/adaptors/http2/http2_adaptor.c:2584
>  (libqpid-dispatch.so+0xffdfc)
> 68:     #5 qd_dispatch_configure_http_connector 
> /home/travis/build/apache/qpid-dispatch/src/adaptors/http_common.c:172 
> (libqpid-dispatch.so+0x3eebd)
> 68:     #6 <null> <null> (libffi.so.7+0x6ff4)
> 68:     #7 main_process 
> /home/travis/build/apache/qpid-dispatch/router/src/main.c:97 
> (qdrouterd+0x2bb2)
> 68:     #8 main /home/travis/build/apache/qpid-dispatch/router/src/main.c:369 
> (qdrouterd+0x2882)
> 68: 
> 68:   Thread T4 (tid=16873, running) created by main thread at:
> 68:     #0 pthread_create <null> (libtsan.so.0+0x5ea99)
> 68:     #1 sys_thread 
> /home/travis/build/apache/qpid-dispatch/src/posix/threading.c:183 
> (libqpid-dispatch.so+0x95442)
> 68:     #2 qd_server_run 
> /home/travis/build/apache/qpid-dispatch/src/server.c:1485 
> (libqpid-dispatch.so+0xeceda)
> 68:     #3 main_process 
> /home/travis/build/apache/qpid-dispatch/router/src/main.c:115 
> (qdrouterd+0x2c27)
> 68:     #4 main /home/travis/build/apache/qpid-dispatch/router/src/main.c:369 
> (qdrouterd+0x2882)
> 68: 
> 68:   Thread T3 (tid=16872, running) created by main thread at:
> 68:     #0 pthread_create <null> (libtsan.so.0+0x5ea99)
> 68:     #1 sys_thread 
> /home/travis/build/apache/qpid-dispatch/src/posix/threading.c:183 
> (libqpid-dispatch.so+0x95442)
> 68:     #2 qd_server_run 
> /home/travis/build/apache/qpid-dispatch/src/server.c:1485 
> (libqpid-dispatch.so+0xeceda)
> 68:     #3 main_process 
> /home/travis/build/apache/qpid-dispatch/router/src/main.c:115 
> (qdrouterd+0x2c27)
> 68:     #4 main /home/travis/build/apache/qpid-dispatch/router/src/main.c:369 
> (qdrouterd+0x2882)
> 68: 
> 68: SUMMARY: ThreadSanitizer: data race 
> /home/travis/build/apache/qpid-dispatch/src/adaptors/http2/http2_adaptor.c:2228
>  in egress_conn_ping_sender
> 68: ==================
> 68: ThreadSanitizer: reported 1 warnings
> {noformat}



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