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Date: Thu, 8 Jul 2010 21:20:08 +0200
From: Pawel Jakub Dawidek <pjd@FreeBSD.org>
To: Karl Pielorz <kpielorz_lst@tdx.co.uk>
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Cc: freebsd-geom@freebsd.org
Subject: Re: FreeBSD 7.3-Stable / GEOM issue with ZFS attach/replace &
	zvol's...
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On Thu, Jul 08, 2010 at 07:58:08PM +0100, Karl Pielorz wrote:
>=20
> Hi All,
>=20
> I posted a few days ago in -fs and -hackers - but never got any reply. I'=
ve=20
> done some digging around now, and been able to reproduce the problem belo=
w=20
> on another machine (by sending my ZFS zvol's & snapshots to it).
>=20
> I'm running 7.3-STABLE on an amd64, w/10Gb of RAM, and 2 * dual core=20
> Opteron 285's.
>=20
> In a nutshell: A zfs attach/replace (or similar) on my system results in=
=20
> GEOM iterating through all the 'drives' on the system (which is apparentl=
y=20
> normal). When it encounters some of my ZFS volume snapshots (which are GE=
LI=20
> encrypted) it appears to 'hang' and the zfs attach/replace never complete=
s.
>=20
> Remove the snapshot it hangs on - and it hangs on another. Remove all the=
=20
> snapshots/volumes - and the ZFS command completes without issue.
>=20
> At the moment this is stopping me from replacing a failing drive which is=
=20
> part of a zpool mirror set :(

This was fixed in r200126, but wasn't MFCed to 7. I recommend upgrading
to 8.1 once it is released.

--=20
Pawel Jakub Dawidek                       http://www.wheelsystems.com
pjd@FreeBSD.org                           http://www.FreeBSD.org
FreeBSD committer                         Am I Evil? Yes, I Am!

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