This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:
apport-collect 1273386
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Tags added: precise
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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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