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Message #96377
[Bug 1275879] Re: Kernel panic
** Branch linked: lp:ubuntu/precise-proposed/linux-lts-trusty
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https://bugs.launchpad.net/bugs/1275879
Title:
Kernel panic
Status in linux package in Ubuntu:
Fix Committed
Status in linux source package in Trusty:
Fix Committed
Status in linux source package in Utopic:
Fix Committed
Status in linux source package in Vivid:
Fix Committed
Bug description:
SRU Justification
Impact: Under certain workloads a BUG in the xen-netfront driver is
getting triggered.
Fix: Remove the offending BUG, and a related BUG which would have also
been triggered by the same conditions.
Test Case: This bug has only been seen under certain workloads
involving haproxy and has proved challenging to reproduce. The fix has
been verified by an affected user, with the BUG replaced by a WARN to
ensure that the conditions which would have triggered the bug were
actually encountered.
Regression Potential: The fix has been verified and acked upstream.
Removing the BUGs will not affect cases which were not crashing
previously, and cases which were crashing can't really be made much
worse.
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I run ubuntu servers 13.04, 13.10, and 14.04 on the AWS cloud.
Whenever I install haproxy and nginx on the same server, after hitting
it for a while, a kernel panic is caused. However, the kernel panic
does not show up in ubuntu 12.04. The kernel panic is pasted at the
end of the attachment.
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References