linux-kernel - Re: Linux 2.6.32-rc8 - T500 fails to suspend to RAM

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Message-Id: <200912022239.05528.rjw@sisk.pl>
Date:	Wed, 2 Dec 2009 22:39:05 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Lior Dotan <liodot@...il.com>
Cc:	linux-kernel@...r.kernel.org,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	pm list <linux-pm@...ts.linux-foundation.org>
Subject: Re: Linux 2.6.32-rc8 - T500 fails to suspend to RAM

On Wednesday 02 December 2009, Lior Dotan wrote:
> Rafael J. Wysocki wrote:
> > On Tuesday 01 December 2009, Lior Dotan wrote:
> >   
> >> Hi,
> >>
> >> Ever since I've upgraded to rc8, my T500 fails to suspend to RAM for the
> >> second time. Suspending for the first time works ok but when I resume and
> >> later try to suspend again the screen gets blank and the moon LED blinks
> >> forever. rc6 & rc7 as well as 2.6.31 worked great with out a problem.
> >>     
> >
> > Well, I don't see any particular change that might cause the symptoms you
> > describe between -rc7 and -rc8.  If this is 100% reproducible, I guess
> > bisecting is the only option at the moment.
> >   
> I tried bisecting it, not sure if it's any good but this is what I got:

Thanks for the effort.

> ldot@...az ~/linux/linux-2.6 $ git bisect bad
> Bisecting: 0 revisions left to test after this (roughly 0 steps)
> [1456edbb1476db735715ddcc7ac306de587024eb] kconfig: Make zconf.y work 
> with current bison
> ldot@...az ~/linux/linux-2.6 $ git bisect log
> git bisect start
> # bad: [648f4e3e50c4793d9dbf9a09afa193631f76fa26] Linux 2.6.32-rc8
> git bisect bad 648f4e3e50c4793d9dbf9a09afa193631f76fa26
> # good: [156171c71a0dc4bce12b4408bb1591f8fe32dc1a] Linux 2.6.32-rc7
> git bisect good 156171c71a0dc4bce12b4408bb1591f8fe32dc1a
> # bad: [b6b24c73d56a166a829318a1f06803ff9b54857b] spi: error status 
> should be negative
> git bisect bad b6b24c73d56a166a829318a1f06803ff9b54857b
> # bad: [82abc2a97a4a3c7635c40e6dff571816062ec506] Merge branch 
> 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2
> git bisect bad 82abc2a97a4a3c7635c40e6dff571816062ec506
> # good: [24dfb2b5867df24ba03b6c4418312e23b1300aa8] Merge branch 
> 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
> git bisect good 24dfb2b5867df24ba03b6c4418312e23b1300aa8
> # bad: [e8e63cbf9a339c972eeb5ccf8777c8067bdfd869] oss: Mark loadhex 
> static in hex2hex.c
> git bisect bad e8e63cbf9a339c972eeb5ccf8777c8067bdfd869
> # bad: [ad0cd62ab632afe9b562b5f09343c21e1521505d] 
> arch/alpha/boot/tools/objstrip.c: Mark "usage" static
> git bisect bad ad0cd62ab632afe9b562b5f09343c21e1521505d
> # bad: [65166571800af0f63f21e5576d7db12d2bf73790] kconfig: Mark various 
> internal functions static
> git bisect bad 65166571800af0f63f21e5576d7db12d2bf73790

This commit is not very likely to be the source of the issue.

Perhaps one of the commits you marked as 'good' was in fact a bad one.

Best,
Rafael
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