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https://issues.apache.org/jira/browse/QPID-4168?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Stitcher reassigned QPID-4168:
-------------------------------------
Assignee: Andrew Stitcher
> Unhandled [rare] error condition in EpollPoller.cpp
> ---------------------------------------------------
>
> Key: QPID-4168
> URL: https://issues.apache.org/jira/browse/QPID-4168
> Project: Qpid
> Issue Type: Bug
> Components: C++ Client
> Affects Versions: 0.16
> Environment: RHEL 6.2 (probably all POSIX targets)
> Reporter: Rob Springer
> Assignee: Andrew Stitcher
> Priority: Minor
>
> There was a bug in one of our programs wherein a thread could call close() on
> what was effectively a random socket.
> Occasionally, it would happen to call close() on the alwaysReadableFd
> registered in the PollerPrivate constructor, which would result in an epoll
> event for that FD to be returned in the call to epoll_wait() on line 568.
> It'd
> then try to dereference the event's "ptr" element (which was set to 0x1 on
> registration for that FD), which would lead to a segfault.
> It's worth reiterating that the triggering bug is absolutely not in Qpid, so
> this isn't a core functionality issue - it's more of a graceful handling of a
> unexpected error condition.
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