Re: [PATCH] PM-Timer: doesn't use workaround if chipset is not buggy

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Hi,

On Fri, Mar 24, 2006 at 03:21:39AM +0900, OGAWA Hirofumi wrote:
> Andreas Mohr <[email protected]> writes:
> 
> > Should I do a public request for chipset testing?
> > (I wrote a small test app here that would hopefully identify a buggy
> > chipset).
> 
> I think almost ICH4 is not buggy.  But probably current approach is safe.
> So, I added "pmtmr_good" to disable the workaround instead.
> 
> I posted probably similar one for mainly ICH4 users.
> http://marc.theaimsgroup.com/?l=linux-kernel&m=114297656924494&w=2

IMHO this request was much too non-verbose (both Subject *and* introduction).
Interested parties wouldn't even know that they should be interested in it ;)


> > Data that I have collected from internet snippets (mostly Intel errata
> > documents):
> > Affected (PCI ID / rev):
> >   - ICH4???
> >   - PIIX4 A0 (0x7113 / 00?), A1 (0x7113 / 00?), B0 (0x7113 / 01?)
> >   - PIIX4E A0 (0x7113 / 02?)
> > Probably fixed (PCI ID / rev):
> >   - PIIX4M A0 (0x7113 / 03?)
> >
> > My Toshiba Satellite 4280 seems to have non-buggy PIIX4M
> > (since it's PCI rev. 03), haven't had time to test reliability yet, though.
> 
> I tested PIIX4E (yes, really buggy), ICH7, VT88237. And ICH6 was
> reported as sane.

What further steps should now be taken for this patch to be included
in a sufficiently official kernel in some form?

I'm asking now since as some kind of weird Christmas present this one
has found its way under my desk rather very accidentally:

00:00.0 Host bridge: Intel Corporation 440LX/EX - 82443LX/EX Host bridge (rev 0
3)
00:01.0 PCI bridge: Intel Corporation 440LX/EX - 82443LX/EX AGP bridge (rev 03)
00:04.0 ISA bridge: Intel Corporation 82371AB PIIX4 ISA (rev 01)
00:04.1 IDE interface: Intel Corporation 82371AB PIIX4 IDE (rev 01)
00:04.2 USB Controller: Intel Corporation 82371AB PIIX4 USB (rev 01)
00:04.3 Bridge: Intel Corporation 82371AB PIIX4 ACPI (rev 01)
00:06.0 SCSI storage controller: Adaptec AIC-7880U
00:0a.0 Ethernet controller: 3Com Corporation 3c905C-TX [Fast Etherlink] (rev 7
4)
00:0c.0 VGA compatible controller: ATI Technologies Inc 264VT4 [Mach64 VT4] (re
v 3a)


So this means I have ICH5, PIIX4M and PIIX4 rev. 01 (most likely buggy)
and some non-Intel chipsets. Ideal conditions for testing.

Andreas Mohr
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