It appears this bug (or similar) is back in 0.12. See Debian bug report #580649 (http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=580649 ).
** Bug watch added: Debian Bug tracker #580649 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=580649 -- Block I/O crashes after migration https://bugs.launchpad.net/bugs/341682 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs