[Bug 1640382] Update Released

Brian Murray brian at ubuntu.com
Tue Feb 7 22:11:14 UTC 2017

The verification of the Stable Release Update for qemu has completed
successfully and the package has now been released to -updates.
Subsequently, the Ubuntu Stable Release Updates Team is being
unsubscribed and will not receive messages about this bug report.  In
the event that you encounter a regression using the package from
-updates please report a new bug using ubuntu-bug and tag the bug report
regression-update so we can easily find any regressions.

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  Segfault event notifier because of race condition

Status in Ubuntu Cloud Archive:
Status in Ubuntu Cloud Archive icehouse series:
  Fix Committed
Status in qemu package in Ubuntu:
  Fix Released
Status in qemu source package in Trusty:
  Fix Released

Bug description:

  Sometimes instance get crashed with segfault on event notifier

  gdb traceback is below[1]

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


  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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