[
https://issues.apache.org/jira/browse/PROTON-1773?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16374972#comment-16374972
]
Andrew Stitcher commented on PROTON-1773:
-----------------------------------------
Note this may well have been latent, because the test that shows it up wasn't
present before, although it would have hung if it were.
Also note this issue seems limited to the epoll proactor implementation.
> Access after free created by recent fix
> ---------------------------------------
>
> Key: PROTON-1773
> URL: https://issues.apache.org/jira/browse/PROTON-1773
> Project: Qpid Proton
> Issue Type: Bug
> Components: cpp-binding, proton-c
> Affects Versions: proton-c-0.21.0
> Reporter: Andrew Stitcher
> Priority: Blocker
> Fix For: proton-c-0.21.0
>
>
> The fix for PROTON-1734 may have caused a sporadic access after free problem
> detected in one of the new tests in cpp-container_test.
> {noformat}
> 10: TEST: test_container_mt_stop()
> 10: ==11269== Invalid read of size 8
> 10: ==11269== at 0x59772E4: pn_proactor_disconnect (epoll.c:2128)
> 10: ==11269== by 0x4E6156F:
> proton::container::impl::stop(proton::error_condition const&)
> (proactor_container_impl.cpp:763)
> 10: ==11269== by 0x4E5F2D8: proton::container::stop() (container.cpp:80)
> 10: ==11269== by 0x409ED4: (anonymous namespace)::test_container_mt_stop()
> (container_test.cpp:344)
> 10: ==11269== by 0x404811: main (container_test.cpp:368)
> 10: ==11269== Address 0x6e27748 is 1,256 bytes inside a block of size 1,808
> free'd
> 10: ==11269== at 0x4C2BDEC: free (in
> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
> 10: ==11269== by 0x5975221: pconnection_process (epoll.c:1174)
> 10: ==11269== by 0x5975C3E: process_inbound_wake (epoll.c:1962)
> 10: ==11269== by 0x5975C3E: proactor_do_epoll (epoll.c:1999)
> 10: ==11269== by 0x4E6336B: proton::container::impl::thread()
> (proactor_container_impl.cpp:670)
> 10: ==11269== by 0x4E639A3: proton::container::impl::run(int)
> (proactor_container_impl.cpp:721)
> 10: ==11269== by 0x513EA5F: ??? (in
> /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.19)
> 10: ==11269== by 0x60C3183: start_thread (pthread_create.c:312)
> 10: ==11269== by 0x56A503C: clone (clone.S:111)
> 10: ==11269==
> 10/46 Test #10: cpp-container_test ...............***Failed 2.53 sec
> {noformat}
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscr...@qpid.apache.org
For additional commands, e-mail: dev-h...@qpid.apache.org
