Finally there is a bug report for my issue, yay! This bug hits me on precise with any of the current LTS kernels, i am struggling with it for more than a year, maybe even two. Sometimes all just works fine, sometimes the system locks up. I wasn't able to see the error message since i never had the console open when the issue appeared. Nothing in the log files, too.
Environment: Kernel 3.8.0-27-generic on Ubuntu 12.04. LVM on top of cryptsetup/LUKS, seven logical volumes (six data, one swap) Bacula file daemon running for backups (I use a shell script to set up lvm snapshots (ro) and mount them ro, like Craig.) Last lines from bacula log: 03-Aug 17:39 markusnb-fd JobId 1706: ClientAfterJob: Unmounting Snapshot of vgluks/storage ... + udevadm settle --quiet 03-Aug 17:39 markusnb-fd JobId 1706: ClientAfterJob: + sync 03-Aug 17:39 markusnb-fd JobId 1706: ClientAfterJob: + local out 03-Aug 17:39 markusnb-fd JobId 1706: ClientAfterJob: ++ umount -f /var/run/lvm-snapshot/storage -- 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 ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
