Public bug reported: Current stable kernel is affected by an issue that happens when releasing grants. It is a communication issue between dom0 and domU and there is a temptative patch upstream (konrad's tree) that might fix the issue:
https://git.kernel.org/cgit/linux/kernel/git/konrad/xen.git/patch/?id=c43cf3ea838541ea9f066f4f1aa7b197cba6276e (also in attachment) I have not been able to backport this patch on top of current 3.13.0-48 sources. When this panic is triggered (on a server for example), there is a complete dom0 kernel crash (as documented by attachment log) with data & services loss. /proc/version_signature: Ubuntu 3.13.0-48.80-generic 3.13.11-ckt16 ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: kernel-bug xen ** Attachment added: "xen_crash_xcrpt.log" https://bugs.launchpad.net/bugs/1438677/+attachment/4361961/+files/xen_crash_xcrpt.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1438677 Title: dom0 kernel panic - xen_blkbk_unmap+0x5c/0x2f0 [xen_blkback] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1438677/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
