The ami which was reported to cause the problems, as well as the traces I saw so far are about ubuntu 11.04 but at least with a kernel at the level of release (2.6.38-8.42). It is probably part of the problem that "the Ubuntu image" not necessarily is the latest one. Even if any bug was fixed by stable updates, if only the initial release kernel is in use it does not help.
Following some of the other aws links about the problem with the stack trace including reference to paging, it does not seem to be completely understood. Roughly it seems the issue started with 2.6.37 and is ongoing. https://lkml.org/lkml/2011/8/26/310 There is a patch mentioned there with the suggestion to revert. But that only got in with 3.0 afaics which would make it unlikely to be the reason. I will try to look at those reproducers mentioned to see whether I can trigger any crash with those as a next step. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/854050 Title: BUG at /build/buildd/linux-2.6.38/mm/swapfile.c:255 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/854050/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
