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Message-Id: <200712091520.04740.rjw@sisk.pl>
Date: Sun, 9 Dec 2007 15:20:03 +0100
From: "Rafael J. Wysocki" <rjw@...k.pl>
To: Tejun Heo <htejun@...il.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
LKML <linux-kernel@...r.kernel.org>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Ingo Molnar <mingo@...e.hu>, linux-ide@...r.kernel.org
Subject: Re: 2.6.24-rc4-git5: Reported regressions from 2.6.23
On Sunday, 9 of December 2007, Tejun Heo wrote:
> Hello,
>
> Andrew Morton wrote:
> >> Subject : PATA scan: ACPI Exception AE_AML_PACKAGE_LIMIT... is beyond end of object
> >> Submitter : Hans de Bruin <bruinjm@...all.nl>
> >> References : http://bugzilla.kernel.org/show_bug.cgi?id=9320
> >> Handled-By : Robert Moore <Robert.Moore@...el.com>
> >> Tejun Heo <htejun@...il.com>
> >> Fu Michael <michael.fu@...el.com>
> >> Patch :
> >>
> >
> > A number of other people are seeing the same thing and Tejun is
> > putting in a blacklist of machines which cannot use libata+acpi.
> > That patch is not yet in any git tree which I pull.
> >
> > AFACIT the machines kepe working OK - there's just some nasty dmesg
> > spew.
> >
> > If any machines _are_ breaking then this could cause real problems
> > and I'd prefer that we either go for a whitelist or arrange to
> > detect the condition and fall back to non-acpi ata.
>
> The pending patchset should make ATA ACPI quite resistant to failures.
Are you going to push it for 2.6.24?
> Known bad boards can be blacklisted (currently only one is on the
> list), ATA ACPI is disabled quicker if ACPI evalution fails, execution
> errors are handled better and commands which are intended to help the
> vendor instead of the user are filtered. So, I think we have enough
> safety nets.
Sounds good. :-)
Thanks,
Rafael
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