ZFS: Failed pool causes system to hang

[Quartz]

> I think what Lawrence is trying to explain is that a "hang" is not
> necessarily a deadlock. Leaving the system for an extended period may
> bring it back.

In other cases perhaps, but at least according to my experience and what 
Jeremy Chadwick has said, it won't in this instance.

However either way....

>What you are saying is also valid, that a hang that
> long is equivalent to a deadlock in your usage.

.. yes. Hard-resetting a machine is bad, but having a machine offline 
for the better part of a day just isn't workable.


> I've not seen a dmesg

http://sneakertech.com/-/dmesg.txt


>does losing the pool still
> cause problems with root?

Yes. At the moment, there's a single ufs disk that houses all the 
system/home/var/swap/etc stuff (no raid or dual boot or anything 
special). The zfs pool is a collection of six other disks in a raidz2 
configuration. If three of those disks go out to lunch (ie; the pool is 
no longer solvent) most io across the board hangs, including io that 
should be confined to the boot drive. I've had hangs when trying to cd 
to my home folder.

______________________________________
it has a certain smooth-brained appeal