Now that is interesting: after getting the system into a similar hang on the second execution of the vol-test script, I took a dump and was looking at it. The system would be suspended for the duration of the dump process, that is maybe 1 minute. After a while I suddenly noticed disk activity on the host and the guest which before seemed unresponsive, suddenly was actually doing the snapshot delete. According to timestamps, this took about 47 minutes!
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1023755 Title: Precise kernel locks up while dd to /dev/mapper files > 1Gb (was: Unable to delete volume) To manage notifications about this bug go to: https://bugs.launchpad.net/cinder/+bug/1023755/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs