linux-kernel - Re: suspend hangs at platform phase [was: mmotm 2010-12-23-16-58 uploaded]

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Date:	Wed, 05 Jan 2011 22:36:04 +0100
From:	Jiri Slaby <jirislaby@...il.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
CC:	akpm@...ux-foundation.org, mm-commits@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>,
	Linux-pm mailing list <linux-pm@...ts.linux-foundation.org>,
	"Brown, Len" <len.brown@...el.com>, steiner@....com,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	Len Brown <lenb@...nel.org>
Subject: Re: suspend hangs at platform phase [was: mmotm 2010-12-23-16-58
 uploaded]

On 01/04/2011 11:57 PM, Rafael J. Wysocki wrote:
> On Tuesday, January 04, 2011, Jiri Slaby wrote:
>> On 01/04/2011 02:40 PM, Jiri Slaby wrote:
>>> On 12/24/2010 01:58 AM, akpm@...ux-foundation.org wrote:
>>>> The mm-of-the-moment snapshot 2010-12-23-16-58 has been uploaded to
>>>
>>> Hi, this kernel regresses with respect to suspend to ram in comparison
>>> with mmotm 2010-12-16-14-56.
>>>
>>> This is OK:
>>> echo devices > /sys/power/pm_test
>>> pm-suspend
>>> This hangs at suspend phase:
>>> echo platform > /sys/power/pm_test
>>> pm-suspend
> 
> Hmm.  So it looks like _PTS hangs?

No _PST here :).

>>> Note that this kernel is based on next-20101221. Should I try newer (and
>>> clean) -next?
>>
>> Ok, bisected down to:
>> 16dc39c98a6ca56a27f22f7ac6731d8223237a2e is first bad commit
>> commit 16dc39c98a6ca56a27f22f7ac6731d8223237a2e
...
>> Revert of that patch fixes the problem.
> 
> Can you send a dmesg output and acpidump output from the failing system, please?

Here they are:
http://www.fi.muni.cz/~xslaby/sklad/panics/dmesg-no-susp.txt
http://www.fi.muni.cz/~xslaby/sklad/adump.txt

They are captured from the mmotm minus 16dc39c98a6ca56 if that's OK?
Ignore the BUG there, it's caused by qemu and fixed in later -next.

regards,
-- 
js
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