Re: odd timer bug, similar to VIA 686a symptoms

Neale Banks (neale@lowendale.com.au)
Wed, 29 May 2002 23:40:40 +1000 (EST)


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).

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

Thanks,
Neale.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/