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From: John Baldwin <jhb@FreeBSD.org>
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Date: Tue, 9 Aug 2005 10:50:20 -0400
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Subject: Re: 6.0-BETA2 DRM/witness panic: Assertion j < 1000 failed at
	/usr/src/sys/kern/subr_witness.c:1513
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On Tuesday 09 August 2005 07:57 am, Gavin Atkinson wrote:
> Hi,
>
> I have a regular panic (3 times a day) on a system running 6.0-BETA2
> which was very stable under 5.4. dmesg available at
> http://www.devrandom.co.uk/freebsd/dmesg-buffy-20050809 . The panic
> seems to relate to DRM, I have a ATI Radeon QY RV100 7000/VE card.

Do a 'show witness', it looks like witness has a cycle somehow.  Normally 
these can only occur if there is a cycle in the static lock order.

-- 
John Baldwin <jhb@FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org