[Qemu-devel] [Bug 1465935] Re: kvm_irqchip_commit_routes: Assertion `ret == 0' failed

[Stefan Bader]

SRU Justification:

Impact: Moving around interrupt handling on SMP (like irqbalance does)
in qemu instances can cause the qemu guest to crash due to an internal
accounting mismatch.

Fix: Backported patch from upstream qemu

Testcase: See above. Verified for Trusty with provided test qemu
package(s).

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https://bugs.launchpad.net/bugs/1465935

Title:
  kvm_irqchip_commit_routes: Assertion `ret == 0' failed

Status in QEMU:
  New
Status in qemu package in Ubuntu:
  Fix Committed
Status in qemu source package in Precise:
  New
Status in qemu source package in Trusty:
  New
Status in qemu source package in Utopic:
  Won't Fix
Status in qemu source package in Vivid:
  New

Bug description:
  Several my QEMU instances crashed, and in the  qemu log, I can see
  this assertion failure,

     qemu-system-x86_64: /build/buildd/qemu-2.0.0+dfsg/kvm-all.c:984:
  kvm_irqchip_commit_routes: Assertion `ret == 0' failed.

  The QEMU version is 2.0.0, HV OS is ubuntu 12.04, kernel 3.2.0-38.
  Guest OS is RHEL 6.3.

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