Date: Sun, 8 Sep 2013 22:34:59 +0200 From: Jeremie Le Hen <jlh@FreeBSD.org> To: Steven Hartland <killing@multiplay.co.uk> Cc: Jeremie Le Hen <jlh@FreeBSD.org>, Matthew Ahrens <mahrens@delphix.com>, freebsd-current@FreeBSD.org Subject: Re: Panic in ZFS: solaris assert: dn->dn_datablkshift != 0 Message-ID: <20130908203459.GO43281@caravan.chchile.org> In-Reply-To: <727DCAE377634C0AB4D506FCCA167219@multiplay.co.uk> References: <20130907123545.GK43281@caravan.chchile.org> <20130908085444.GL43281@caravan.chchile.org> <B1C833B7D9B246149154AADD699F4C10@multiplay.co.uk> <20130908145804.GN43281@caravan.chchile.org> <727DCAE377634C0AB4D506FCCA167219@multiplay.co.uk>
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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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