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From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no>
To: Kostik Belousov <kostikbel@gmail.com>
References: <86skief8q6.fsf@ds4.des.no>
	<20090606115154.GI1927@deviant.kiev.zoral.com.ua>
Date: Sat, 06 Jun 2009 17:12:27 +0200
In-Reply-To: <20090606115154.GI1927@deviant.kiev.zoral.com.ua> (Kostik
	Belousov's message of "Sat, 6 Jun 2009 14:51:54 +0300")
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Cc: current@freebsd.org
Subject: Re: LOR between NFS and syncer
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Kostik Belousov <kostikbel@gmail.com> writes:
> The vnode list for the mount point also includes syncer vnode, that
> has a special fsync vop. Usual order is syncer vnode lock -> vnode
> lock for the real vnodes. But, when filesystem is unmounted, we get
> the order covered vnode -> any filesystem vnode during sync before
> unmount. This one gives the LOR you reported, assuming you unmounted
> nfs share mounted on the top of nfs share.

No, the LOR occurred during boot.

DES
--=20
Dag-Erling Sm=C3=B8rgrav - des@des.no