Comment 29 for bug 614853

Rudolfs Osins (rudolfs) wrote :

We had at least 4 crashes related to this bug (all within 2 months). Attached the messages of the latest two panics.

It's a DB server running postgres and a linux software raid10 setup for storage. On all occasions the machine had a higher load than normal ~20 - 30 (normally ~15), on the latest crash there was also a raid rebuild in the background.

Running on AWS
Instance: m2.2xlarge
Region: EU-West
Kernel-id: aki-4feec43b (2.6.32-309-ec2 kernel via pvgrub)

Linux version 2.6.32-309-ec2 (buildd@yellow) (gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5) )
#18-Ubuntu SMP Mon Oct 18 21:00:50 UTC 2010 (Ubuntu 2.6.32-309.18-ec2 2.6.32.21+drm33.7)

Will try to upgrade to linux-image-2.6.32-311-ec2 as there are a lot of changes in the sched code, although I didn't find anything that would address this issue explicitly.