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https://issues.apache.org/jira/browse/DISPATCH-1417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16928156#comment-16928156
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ASF GitHub Bot commented on DISPATCH-1417:
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ganeshmurthy commented on pull request #565: DISPATCH-1417 - First attempt at
fixing router crash by introducing a…
URL: https://github.com/apache/qpid-dispatch/pull/565
… lock around the activation procedure
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> Crash when connection_wake ctx points to freed memory
> -----------------------------------------------------
>
> Key: DISPATCH-1417
> URL: https://issues.apache.org/jira/browse/DISPATCH-1417
> Project: Qpid Dispatch
> Issue Type: Bug
> Components: Router Node
> Affects Versions: 1.8.0
> Reporter: Chuck Rolke
> Assignee: Ganesh Murthy
> Priority: Major
> Fix For: 1.9.0
>
>
> Test clients are streaming unsettled multicast messages to and from an edge
> router. Another client repeats the cycle "connect, receive one message from
> the stream, disconnect". Soon the edge router core dumps with:
> {{(gdb) bt
> #0 get_pconnection (c=0x9999999999999999) at
> /home/chug/git/qpid-proton/c/src/proactor/epoll.c:578
> #1 0x00007fc8c0582a1c in pn_connection_wake (c=0x9999999999999999) at
> /home/chug/git/qpid-proton/c/src/proactor/epoll.c:1439
> #2 0x00007fc8c0668472 in connection_wake (ctx=0x1a43658) at
> /home/chug/Downloads/qpid-dispatch-1.9.0/src/server.c:505
> #3 0x00007fc8c066b2af in qd_server_activate (ctx=0x1a43658) at
> /home/chug/Downloads/qpid-dispatch-1.9.0/src/server.c:1304
> #4 0x00007fc8c064f3dd in qdr_activate_connections_CT (core=0x19c8ce0) at
> /home/chug/Downloads/qpid-dispatch-1.9.0/src/router_core/router_core_thread.c:65
> #5 0x00007fc8c064fa1d in router_core_thread (arg=0x19c8ce0) at
> /home/chug/Downloads/qpid-dispatch-1.9.0/src/router_core/router_core_thread.c:171
> #6 0x00007fc8c056258e in start_thread () from /usr/lib64/libpthread.so.0
> #7 0x00007fc8c0201713 in clone () from /usr/lib64/libc.so.6
> (gdb) info threads
> Id Target Id Frame
> * 1 Thread 0x7fc8b1e44700 (LWP 21706) get_pconnection (c=0x9999999999999999)
> at /home/chug/git/qpid-proton/c/src/proactor/epoll.c:578
> 2 Thread 0x7fc8bf8ff240 (LWP 21696) 0x00007fc8c0201a47 in epoll_wait () from
> /usr/lib64/libc.so.6
> 3 Thread 0x7fc8b0e42700 (LWP 21708) 0x00007fc8c0201a47 in epoll_wait () from
> /usr/lib64/libc.so.6
> 4 Thread 0x7fc8abfff700 (LWP 21709) 0x00007fc8c0201a47 in epoll_wait () from
> /usr/lib64/libc.so.6
> 5 Thread 0x7fc8b1643700 (LWP 21707) 0x00007fc8c01f6481 in poll () from
> /usr/lib64/libc.so.6
> 6 Thread 0x7fc8ab7fe700 (LWP 21710) 0x00007fc8c0201a47 in epoll_wait () from
> /usr/lib64/libc.so.6}}
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