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From: Matthias Andree <matthias.andree@gmx.de>
To: Suleiman Souhlal <ssouhlal@FreeBSD.org>
In-Reply-To: <66A71CA4-8134-43A3-BEAB-485C7DF59EA1@FreeBSD.org> (Suleiman
	Souhlal's message of "Wed, 31 Aug 2005 13:47:49 +0200")
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Date: Thu, 01 Sep 2005 22:26:05 +0200
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Cc: freebsd-current@FreeBSD.org, Matthias Andree <matthias.andree@gmx.de>,
	Jeremie Le Hen <jeremie@le-hen.org>, Kris Kennaway <kris@obsecurity.org>
Subject: Re: nfs through nullfs
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Suleiman Souhlal <ssouhlal@FreeBSD.org> writes:

> On Aug 31, 2005, at 12:12 PM, Matthias Andree wrote:
>
>> OK, to reproduce, three steps apart from having an ext2 file system
>> (the ext2 FS is clean according to e2fsck)
>>
>> mount_ext2fs /dev/ad0s5 /linux
>> mount_nullfs /linux /mnt
>> umount /mnt                    -> panic, "locking against myself"
>>
>> backtrace in the kernel debugger, copied manually:
>
> Can you try the patch at http://people.freebsd.org/~ssouhlal/testing/ 
> null_vnops.c-20050831.diff ?

Yup. Tried it, no more panic on umount. Thanks a lot.

-- 
Matthias Andree