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Date: Thu, 7 May 2009 23:59:44 -0400
Message-ID: <8e5ef5f70905072059u51dcdbe8nd5b66f6fb5c124e4@mail.gmail.com>
From: Alexander Kabaev <kabaev@gmail.com>
To: Ben Kelly <ben@wanderview.com>
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Cc: Richard Todd <rmtodd@ichotolot.servalan.com>, freebsd-current@freebsd.org
Subject: Re: Panic: wrong vnode type 0xffffff009b7719c0 on yesterday's 
	current.
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> On May 6, 2009, at 6:54 PM, Richard Todd wrote:
> It looks like this KASSERT was added relatively recently as part of the
> dotdot changes to the namecache:
>
> =A0http://svn.freebsd.org/viewvc/base?view=3Drevision&revision=3D190945
>
> Perhaps there is further fallout from the changes that only occur with ZF=
S?
>
> - Ben

Up to recently dotdot caching in VFS was quite broken and did pay any
attention to vnode types FSes did feed to it.
>From backtrace and analysis provided by original poster it is evident
that ZFS is trying to cache_enter(VDIR, "..", VLNK), which cannot
possibly make any sense. kib@ has recently committed fixes to FFS to
avoid races with vnodes being reused from under ffs_lookup, and I
would not be surprised if ZFS was broken is similar fashion.
--=20
Alexander Kabaev