linux-kernel - Re: Suspend to memory is freezing my machine

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Date:	Tue, 27 May 2008 08:44:37 +0200
From:	"Zdenek Kabelac" <zdenek.kabelac@...il.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>
Subject: Re: Suspend to memory is freezing my machine

2008/5/25 Rafael J. Wysocki <rjw@...k.pl>:
> On Sunday, 25 of May 2008, Zdenek Kabelac wrote:
>> 2008/5/24 Rafael J. Wysocki <rjw@...k.pl>:
>> > On Thursday, 22 of May 2008, Zdenek Kabelac wrote:
>> >> Hello Rafael
>> >>
>> >> 2008/5/4 Rafael J. Wysocki <rjw@...k.pl>:
>> >> > On Sunday, 4 of May 2008, Zdenek Kabelac wrote:
>> >> >> Hello
>> >> >
>> >> > Hi,
>> >> >
>> >> >> With recent 2.6.25 & 2.6.26-rc1 git (around 1 week) I get occasionally
>> >> >> complete freeze of my T61 during suspend. (dual core, 2GB).
>> >> >
>> >> > How reproducible is this?
>> >> >
>> >>
>> >> The problem happens still even with -rc3. Now I've an update:
>> >>
>> >> Usually I've to run the machine for couple hours to actually be able
>> >> to hit this lock.
>> >> (Usually after a day work when I want to leave)
>> >>
>> >> I've also noticed that when I run the suspend after the reboot I
>> >> usually cannot see the suspend freeze - mostly because either the
>> >> mashine crashes from other ooops or I do another reboot.
>> >>
>
> If you use s2ram, please check if "echo mem > /sys/power/state" works instead.

The problem occurs also with plain echo 'mem' - I've already checked before.
Just resently I've discovered that actually I've had some serious
problem with CONFIG_DEBUG_PAGEALLOC option. Unsure if this thing could
be related to my deadlocking problem during suspend - I'll watch, if
the freeze will be still ocurring even without this option.

I'll make probably a separate post about my debug option problem.

Zdenek
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