A scary thing happened to me recently.  On a 4.0beta2 domU built on 10
March, the machine froze while I was editing a file.  When I rebooted
(after 'xm shutdown'), fsck complained about duplicate blocks in a few
files.

The "disks" in question are vnd "drives" on the dom0.  The machine in
question is dual-core, if that matters.


		--Steve Bellovin, http://www.cs.columbia.edu/~smb