New distro question

[Michael ODonnell]

> what bug did you run across?  Don't suppose there's a BZ open on it?

Sorry, I don't have the number in front of me at the moment but
here's the patch that fixes it:

  https://bugzilla.redhat.com/attachment.cgi?id=294675
 
Symptom is that the system appears to hang when filesystems
are unmounted, with larger filesystems being more likely to
suffer the bug than smaller ones.  If you're willing to wait
(sometimes longer than 30 minutes) it does eventually recover
but it's so busy in the meantime (apparently handling some
long deferred dnode bookkeeping with some b0rken locking)
that the cooling fans often throttle up to handle the load...