On Sun, Sep 08, 2013 at 09:02:48PM +0100, Steven Hartland wrote:
> > On Sun, Sep 08, 2013 at 03:17:09PM +0100, Steven Hartland wrote:
> >> I believe this was added by this change set:-
> >> http://svnweb.freebsd.org/base?view=revision&revision=253821
> >> 
> >> Might want to try back out that change and see if everything
> >> works after that?
> > 
> > Actually, I already rolled back my kernel to August 1st:
> > 
> > # svn info .
> > Path: .
> > Working Copy Root Path: /usr/src
> > URL: http://svn0.us-west.freebsd.org/base/head/sys
> > Repository Root: http://svn0.us-west.freebsd.org/base
> > Repository UUID: ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
> > Revision: 253847
> > Node Kind: directory
> > Schedule: normal
> > Last Changed Author: ian
> > Last Changed Rev: 253847
> > Last Changed Date: 2013-07-31 21:14:00 +0200 (Wed, 31 Jul 2013)
> > 
> > 
> > And the problem seems to have gone away.  I could perform a full zfs
> > send/receive whereas it would trigger a panic 100% of the time with a
> > recent kernel.
> 
> I still think r253821 is the cause the reason being is prior to r253996
> ASSERTS in ZFS where not actually active in HEAD.
> 
> So if you could roll forward but then backout r253821 and confirm this
> is indeed the cause that would be a good starting point.
> 
> If this is indeed the cause be worth engaging Matthew Ahrens cc'ed to
> find out the reasoning behind the new ASSERT why you may be hitting it?
 

-- 
Jeremie Le Hen

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