linux-kernel - Re: 2.6.24-rc8-git1: Reported regressions from 2.6.23

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Message-Id: <200801181535.44380.rjw@sisk.pl>
Date:	Fri, 18 Jan 2008 15:35:42 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, bunk@...nel.org,
	Dave Kleikamp <shaggy@...tin.ibm.com>,
	Takashi Iwai <tiwai@...e.de>,
	Shaohua Li <shaohua.li@...el.com>,
	Jay Vosburgh <fubar@...ibm.com>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Stephen Hemminger <shemminger@...ux-foundation.org>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Alexey Starikovskiy <astarikovskiy@...e.de>,
	Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: Re: 2.6.24-rc8-git1: Reported regressions from 2.6.23

On Friday, 18 of January 2008, Ingo Molnar wrote:
> 
> * Rafael J. Wysocki <rjw@...k.pl> wrote:
> 
> > > > > Subject		: snd_hda_intel 2.6.24-rc2 bug: interrupts don't always work on Lenovo X60s
> > > > > Submitter	: Roland Dreier <rdreier@...co.com>
> > > > > Date		: 2007-11-08 14:55
> > > > > References	: http://lkml.org/lkml/2007/11/8/255
> > > > > 		  http://bugzilla.kernel.org/show_bug.cgi?id=9332
> > > > > Handled-By	: Takashi Iwai <tiwai@...e.de>
> > > > > 		  Ingo Molnar <mingo@...e.hu>
> > > > > Patch		: http://lkml.org/lkml/2007/11/16/66
> > > 
> > > This patch went in, but was reverted because it caused more problems than 
> > > it fixed. And what it "fixed" was somewhat dubious anyway.
> > 
> > It was reported to break suspend on one box, but Takashi wants it in, 
> > AFAICS, as quite some time has been invested into figuring out what's 
> > going wrong in that case.
> 
> since this is about a weird, not fully understood hardware interfacing 
> and timing problem, and because my original fix was not really a 
> regression fix (but it indeed _caused_ a real regression in a previously 
> working setup), i'd lean towards just reverting my patch in .24 and 
> going with Takashi's fixes in .25. I.e. the current -git status quo.

Agreed.

Rafael
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