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https://issues.apache.org/jira/browse/DISPATCH-2128?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ken Giusti updated DISPATCH-2128:
---------------------------------
Fix Version/s: (was: 1.17.0)
1.18.0
> delivery_tracker core process walks link->undelivered unlocked
> --------------------------------------------------------------
>
> Key: DISPATCH-2128
> URL: https://issues.apache.org/jira/browse/DISPATCH-2128
> Project: Qpid Dispatch
> Issue Type: Bug
> Components: Router Node
> Affects Versions: 1.16.0
> Reporter: Ken Giusti
> Assignee: Ken Giusti
> Priority: Major
> Labels: race-condition, tsan
> Fix For: 1.18.0
>
>
> While core thread walks the qdr_link_t->undelivered list, the I/O thread can
> modify it:
>
> 5: WARNING: ThreadSanitizer: data race (pid=569945)
> 65: Write of size 8 at 0x7b5800066158 by thread T3 (mutexes: write M380):
> 65: #0 qdr_link_process_deliveries
> /home/kgiusti/work/dispatch/qpid-dispatch/src/router_core/transfer.c:212
> (libqpid-dispatch.so+0x104875)
> 65: #1 CORE_link_push
> /home/kgiusti/work/dispatch/qpid-dispatch/src/router_node.c:1920
> (libqpid-dispatch.so+0x127d00)
> 65: #2 qdr_connection_process
> /home/kgiusti/work/dispatch/qpid-dispatch/src/router_core/connections.c:414
> (libqpid-dispatch.so+0xc4bec)
> 65: #3 AMQP_writable_conn_handler
> /home/kgiusti/work/dispatch/qpid-dispatch/src/router_node.c:299
> (libqpid-dispatch.so+0x122d42)
> 65: #4 writable_handler
> /home/kgiusti/work/dispatch/qpid-dispatch/src/container.c:395
> (libqpid-dispatch.so+0x7b2e2)
> 65: #5 qd_container_handle_event
> /home/kgiusti/work/dispatch/qpid-dispatch/src/container.c:747
> (libqpid-dispatch.so+0x7cfd5)
> 65: #6 handle /home/kgiusti/work/dispatch/qpid-dispatch/src/server.c:1096
> (libqpid-dispatch.so+0x130537)
> 65: #7 thread_run /home/kgiusti/work/dispatch/qpid-dispatch/src/server.c:1121
> (libqpid-dispatch.so+0x13063a)
> 65: #8 _thread_init
> /home/kgiusti/work/dispatch/qpid-dispatch/src/posix/threading.c:172
> (libqpid-dispatch.so+0xad37a)
> 65: #9 <null> <null> (libtsan.so.0+0x2d33f)
> 65:
> 65: Previous read of size 8 at 0x7b5800066158 by thread T1:
> 65: #0 process_link_CT
> /home/kgiusti/work/dispatch/qpid-dispatch/src/router_core/modules/stuck_delivery_detection/delivery_tracker.c:64
> (libq\
> pid-dispatch.so+0x11b745)
> 65: #1 action_handler_CT
> /home/kgiusti/work/dispatch/qpid-dispatch/src/router_core/modules/stuck_delivery_detection/delivery_tracker.c:115
> (l\
> ibqpid-dispatch.so+0x11bbe8)
> 65: #2 router_core_process_background_action_LH
> /home/kgiusti/work/dispatch/qpid-dispatch/src/router_core/router_core_thread.c:192
> (libqpid-d\
> ispatch.so+0xfadfd)
> 65: #3 router_core_thread
> /home/kgiusti/work/dispatch/qpid-dispatch/src/router_core/router_core_thread.c:220
> (libqpid-dispatch.so+0xfaf4b)
> 65: #4 _thread_init
> /home/kgiusti/work/dispatch/qpid-dispatch/src/posix/threading.c:172
> (libqpid-dispatch.so+0xad37a)
> 65: #5 <null> <null> (libtsan.so.0+0x2d33f)
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