I can't say this with certainty, but seems to happen more often when backup destination is tape, and less often when backup destination is disk. Actually, I always backup to disk first, then copy disk backup to tape. But if the tape drive is offline, it skips the last step (copy to tape), and it seems the umount is less like to cause a problem, or maybe never causes a problem. Not sure. Haven't been watching this behavior rigorously. But I wonder if there could be something in the tape kernel driver that locks something in the filesystem, resulting in a deadlock when there is a umount request.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1115753 Title: Umount of Multiple LVM Snapshots Causes 'soft lockup CPU#0 stuck for' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1115753/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
