[Bug 1640382] Re: Segfault event notifier because of race condition

[Brian Murray]

Given that there is no test case in the description, an alternative way
to verify the fix would be to find an crash report in the Error Tracker
matching the same race condition and watching to ensure that the new
package version does not appear in the bucket for that crash.  Could you
review crashes here to find one that matches?

https://errors.ubuntu.com/?release=Ubuntu 14.04&package=qemu

You might try changing the period from day to month or year.

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https://bugs.launchpad.net/bugs/1640382

Title:
  Segfault event notifier because of race condition

Status in qemu package in Ubuntu:
  Fix Released
Status in qemu source package in Trusty:
  In Progress

Bug description:
  [Impact]

  Sometimes instance get crashed with segfault on event notifier

  gdb traceback is below[1]

  trying to do SRU with below commits[2][3]

  [Testcase]

  I can't provide the step to reproduce this issue

  but provided gdb backtrace for this.

  [Regeression Potential]

  Above patch is merged on 2014, and it's quite simple patch.

  [Other Info]

  related link attached

  [1] http://pastebin.ubuntu.com/23449623/

  [2] http://git.qemu.org/?p=qemu.git;a=commit;h=924fe1293c3e7a3c787bbdfb351e7f168caee3e9
  [3] http://git.qemu.org/?p=qemu.git;a=commit;h=df54f5efed9b3be7f40e14113cc1f13f5889e644 ( cherrypicked commit )

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