If there is a somewhat reliable reproducer, we could try some patches. I think this might be the same issue that is currently in the progress of getting patches pushed upstream [1]:
* [PATCH 1/2] x86: mm: Fix vmalloc_fault oops during lazy MMU updates. * [PATCH 2/2] mm/x86: Patch out arch_flush_lazy_mmu_mode() when running on bare metal [1] http://www.spinics.net/lists/stable/msg02839.html -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1160543 Title: kernel crash on EC2 raring To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1160543/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
