kernel-packages team mailing list archive

[Chris J Arges <1273386@xxxxxxxxxxxxxxxxxx>]

@salvatore-orlando

I've built a test kernel with:
8aac6270 and a pre-req c99fe536

I've been able to boot it but haven't done much testing. Here it is:
http://people.canonical.com/~arges/lp1273386/

If you have time you can try reproducing on this kernel to see if it fixes the issue as your originally suspected. 
However, the crashdump should be prioritized in solving this issue.

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https://bugs.launchpad.net/bugs/1273386

Title:
  Neutron namespace metadata proxy triggers kernel crash on Ubuntu
  12.04/3.2 kernel

Status in OpenStack Neutron (virtual network service):
  New
Status in OpenStack Compute (Nova):
  New
Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  In the past 9 days we have been seeing very frequent occurences of
  this kernel crash: http://paste.openstack.org/show/61869/

  Even if the particular crash pasted here is triggered by dnsmasq, in
  almost all cases the crash is actually triggered by the neutron metada
  proxy.

  This also affects nova badly since this issue, which appears namespace
  related, results in a hang while mounting the ndb device for key
  injection.

  logstash query:
  http://logstash.openstack.org/#eyJzZWFyY2giOiJcImtlcm5lbCBCVUcgYXQgL2J1aWxkL2J1aWxkZC9saW51eC0zLjIuMC9mcy9idWZmZXIuYzoyOTE3XCIgYW5kIGZpbGVuYW1lOnN5c2xvZy50eHQiLCJmaWVsZHMiOltdLCJvZmZzZXQiOjAsInRpbWVmcmFtZSI6ImN1c3RvbSIsImdyYXBobW9kZSI6ImNvdW50IiwidGltZSI6eyJmcm9tIjoiMjAxNC0wMS0xNlQxODo1MDo0OCswMDowMCIsInRvIjoiMjAxNC0wMS0yN1QxOToxNjoxMSswMDowMCIsInVzZXJfaW50ZXJ2YWwiOiIwIn0sInN0YW1wIjoxMzkwODUwMzI2ODY0fQ==

  We have seen about 398 hits since the bug started to manifest.
  Decreased hit rate in the past few days is due to less neutron patches being pushed.

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