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From: Vojtech Pavlik <vojtech@suse.cz>
To: Neale Banks <neale@lowendale.com.au>
Cc: Vojtech Pavlik <vojtech@suse.cz>,
	Alan Cox <alan@lxorguk.ukuu.org.uk>,
	linux-kernel@vger.kernel.org
Subject: Re: odd timer bug, similar to VIA 686a symptoms
Date: Wed, 29 May 2002 14:58:57 +0200	[thread overview]
Message-ID: <20020529145857.A9813@ucw.cz> (raw)
In-Reply-To: <20020529140515.A8522@ucw.cz> <Pine.LNX.4.05.10205292319090.3388-100000@marina.lowendale.com.au>

On Wed, May 29, 2002 at 11:40:40PM +1000, Neale Banks wrote:
> On Wed, 29 May 2002, Vojtech Pavlik wrote:
> 
> [...]
> > On Wed, May 29, 2002 at 01:46:27PM +0100, Alan Cox wrote:
> [...]
> > > Neptune chipsets at least had latching bugs on timer reads. What chipset
> > > is the laptop ?
> > 
> > This is unlikely to be the latching bug - note the values are near to
> > 65535 - that means the timer is reprogrammed to count from 0xffff down
> > instead from LATCH. That is because of the suspend I presume. What's
> > weird is that the VIA fix doesn't program it to the correct value, or
> > perhaps is that missing from the patch?
> 
> Yes, my version of your patch includes an option to disable the via686a
> fix (and this was in effect at the time - I'm still cringing in fear from
> nasty FS corruption that ensued after a "probable hardware bug: restoring
> chip configuration" message last October :-( - yes it may be unlikely
> that it's related, but I don't yet have any other suspects.  FWIW, the
> machine also locked up then).

It shouldn't be able to do anything like that ...

> Any suggestions smarter than backing up everything "important" and running
> the battery down with the VIA fix enabled?

Nope. ;)

-- 
Vojtech Pavlik
SuSE Labs

  reply	other threads:[~2002-05-29 12:59 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-05-29  9:25 odd timer bug, similar to VIA 686a symptoms Neale Banks
2002-05-29 12:46 ` Alan Cox
2002-05-29 12:05   ` Vojtech Pavlik
2002-05-29 13:40     ` Neale Banks
2002-05-29 12:58       ` Vojtech Pavlik [this message]
2002-05-29 13:18   ` Neale Banks
2002-05-29 13:48     ` Alan Cox
2002-05-29 13:47       ` Neale Banks
2002-05-29 14:55         ` Alan Cox

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