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Subject: Re: odd timer bug, similar to VIA 686a symptoms
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Neale Banks <neale@lowendale.com.au>
Cc: linux-kernel@vger.kernel.org
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Date: 29 May 2002 13:46:27 +0100
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On Wed, 2002-05-29 at 10:25, Neale Banks wrote:
>> May 28 11:19:54 gull kernel: timer.c: VIA bug check triggered. Value read 65500 [0xffdc], re-read 65485 [0xffcd]
> May 28 11:19:55 gull kernel: timer.c: VIA bug check triggered. Value read 65500 [0xffdc], re-read 65486 [0xffce]
> May 28 11:19:56 gull kernel: timer.c: VIA bug check triggered. Value read 65500 [0xffdc], re-read 65486 [0xffce]
> May 28 11:19:57 gull kernel: timer.c: VIA bug check triggered. Value read 65499 [0xffdb], re-read 65484 [0xffcc]
> May 28 11:19:58 gull kernel: timer.c: VIA bug check triggered. Value read 65497 [0xffd9], re-read 65483 [0xffcb]
> 
> Anyone got any good theories what's going on here, given that this is a
> ~1995 vintage laptop with a Pentium-120 (which I'm assured doesn't have a
> VIA 686a ;-)?

Neptune chipsets at least had latching bugs on timer reads. What chipset
is the laptop ?