[
https://issues.apache.org/jira/browse/DISPATCH-2129?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Ganesh Murthy updated DISPATCH-2129:
------------------------------------
Fix Version/s: Backlog
(was: 1.19.0)
> shutdown race accessing core->running flag
> ------------------------------------------
>
> Key: DISPATCH-2129
> URL: https://issues.apache.org/jira/browse/DISPATCH-2129
> Project: Qpid Dispatch
> Issue Type: Bug
> Components: Router Node
> Affects Versions: 1.16.0
> Reporter: Ken Giusti
> Assignee: Michael Goulish
> Priority: Minor
> Labels: race-condition, tsan
> Fix For: Backlog
>
>
> Low priority, but nice to clean up so we can remove the suppression for
> qdr_core_free.
> The core->running flag is set false by the main thread during shutdown. The
> flag is checked by the core thread as an indication that the core thread
> should exit its main loop.
> A non-racy approach would be to instead have the main thread queue an action
> to the core thread to cause it to exit the main loop (by setting the
> core->running flag to false).
> {noformat}
> 65: WARNING: ThreadSanitizer: data race (pid=613021)
> 65: Write of size 1 at 0x7b6400035220 by main thread:
> 65: #0 qdr_core_free
> /home/kgiusti/work/dispatch/qpid-dispatch/src/router_core/router_core.c:140
> (libqpid-dispatch.so+0xf0484)
> 65: #1 qd_router_free
> /home/kgiusti/work/dispatch/qpid-dispatch/src/router_node.c:2160
> (libqpid-dispatch.so+0x12870e)
> 65: #2 qd_dispatch_free
> /home/kgiusti/work/dispatch/qpid-dispatch/src/dispatch.c:375
> (libqpid-dispatch.so+0x81dfd)
> 65: #3 main_process
> /home/kgiusti/work/dispatch/qpid-dispatch/router/src/main.c:119
> (qdrouterd+0x402750)
> 65: #4 main /home/kgiusti/work/dispatch/qpid-dispatch/router/src/main.c:369
> (qdrouterd+0x403557)
> 65:
> 65: Previous read of size 1 at 0x7b6400035220 by thread T1:
> 65: #0 router_core_thread
> /home/kgiusti/work/dispatch/qpid-dispatch/src/router_core/router_core_thread.c:210
> (libqpid-dispatch.so+0xfb416)
> 65: #1 _thread_init
> /home/kgiusti/work/dispatch/qpid-dispatch/src/posix/threading.c:172
> (libqpid-dispatch.so+0xad37a)
> 65: #2 <null> <null> (libtsan.so.0+0x2d33f)
> {noformat}
--
This message was sent by Atlassian Jira
(v8.20.1#820001)
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscr...@qpid.apache.org
For additional commands, e-mail: dev-h...@qpid.apache.org
