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Date: Wed, 11 Sep 2013 06:43:31 +0200
From: Jeremie Le Hen <jlh@FreeBSD.org>
To: Steven Hartland <killing@multiplay.co.uk>,
 Matthew Ahrens <mahrens@delphix.com>, freebsd-current@FreeBSD.org
Subject: Re: Panic in ZFS: solaris assert: dn->dn_datablkshift != 0
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On Mon, Sep 09, 2013 at 09:32:26AM +0200, Jeremie Le Hen wrote:
> > 
> > Indeed, probably a bad key combo in vi :).
> > 
> > I'm reverting r253821 and r254753 (the second one was supposingly fixing
> > the first one) and recompiling my kernel.
> > 
> > I will let you know.
> 
> So far so good, I've been able to synchronize my datasets beyond the
> point where it crashed last time.
> 
> Matthew, do you have any idea of a fix I could try on top of FreeBSD's
> r253821 and r254753?

There has been some debugging on the ZFS mailing-list and I have tested
a working fix.

See:
http://www.listbox.com/member/archive/182191/2013/09/sort/time_rev/page/1/entry/1:38/20130909182626:D79EC5B8-199E-11E3-8BF5-CB08091A731B/
 
-- 
Jeremie Le Hen

Scientists say the world is made up of Protons, Neutrons and Electrons.
They forgot to mention Morons.