zfs diff deadlock

[Peter Jeremy]

[for the archives - I've written a followup to zfs-discuss]

On 2012-Nov-17 00:44:26 +0200, Andriy Gapon <avg at FreeBSD.org> wrote:
>on 17/11/2012 00:35 Peter Jeremy said the following:
>> On 2012-Nov-14 07:27:30 +1100, Peter Jeremy <peter at server.rulingia.com> 
>> wrote:
>>> On head, I get some normal differences terminated by: Unable to
>>> determine path or stats for object 2128453 in tank/beckett/home at 20120518:
>>> Invalid argument
>> 
>> I've done some more digging and got the following.  Does it make sense for 
>> an object that is a "ZFS plain file" to have another "ZFS plain file" as a 
>> parent?  It doesn't sound right to me.
>
>There was a bug that could result in a problem like this (because of corrupted
>znode attributes) after certain operations.
>What version of FreeBSD do you run there (branch+rev) ?

This is head r242707 but the original pool is quite old and has been
moved around a fair bit using send|recv.  I've never intentionally used
extended attributes but the pool has been exported to Windows XP via
Samba and OS-X via NFSv3.

If anyone has any ideas for repairing the pool, I'd be interested.

-- 
Peter Jeremy
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