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 23:46:01 +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 01/05/2011 11:39 PM, Rafael J. Wysocki wrote:
> On Wednesday, January 05, 2011, Jiri Slaby wrote:
>> 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 :).
> 
> I really meant _PTS and yes, there is one and it does quite a lot of
> interesting stuff.

Yeah, I grepped for _PTS, but in a wrong file. My bad.

> Are you able to collect serial console (or equivalent) logs from that machine?

Unfortunately I don't have a second machine with serial port. What
exactly you want to dig out of the logs? Will netconsole work at that phase?

regards,
-- 
js
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