Hi Quintin, Thanks for your report.
On Wed, 2012-04-04 at 13:54 +1200, Quintin Russ wrote: > Package: linux-image-2.6.32-5-xen-amd64 > Version: 2.6.32-39 > Severity: important > > We have observed an issue when a Xen dom0 is removing a snapshot for a > logical volume and another process comes along to create a snapshot > for that same device (different names) causing the server to Kernel > Ooops. According to my logs sometimes removing of the snapshot can > pause or take a while contributing to the issue. Attempts to add > locking code (using dotlockfile) have not so far been successful in > mitigating this bug, but we are still exploring this option. > > The nodes that are affected intermittently& we have been unable to > reproduce this issue in the lab (on either the same model of hardware > or hardware that has crashed in production). From our logs we can see > that every time this issue occurs one process has been removing the > snapshot while another has been creating a snapshot shortly after > (seconds normally). We are currently seeing about a 5% chance of a > crash per month (assuming our nodes are equal). > > This bug looks similar to a number of bugs that have already been > filed related to this > issue:http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=614400 A quick > Google search shows many more (which have mostly been merged): > https://www.google.co.nz/webhp?q=site%3Abugs.debian.org%20xen% > 20snapshot%20kernel%20oops%20squeeze Those issues were believed to be fixed in 2.6.32-34 and you are running 2.6.32-39 so either this is a different issue (perhaps with similar symptoms) or the issue isn't really fixed. Either way I think we need to see your kernel logs containing the actual oops in order to make any progress. Thanks, Ian. -- Ian Campbell Current Noise: Cathedral - Carnival Bizarre HOORAY, Ronald!! Now YOU can marry LINDA RONSTADT too!! -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/1333544444.20582.13.ca...@zakaz.uk.xensource.com
