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

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Date:	Sun, 04 May 2008 14:32:46 +0200
From:	Jacek Luczak <difrost.kernel@...il.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
CC:	Zdenek Kabelac <zdenek.kabelac@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Suspend to memory is freezing my machine

Rafael J. Wysocki pisze:
> 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?
> 
>> I'm running kernel with no_console_suspend - but all I can see is
>> blinking cursor on an empty screen - thus even when I run kernel with
>> most debug options turned on, I can't pass more details so far.  I run
>> suspend with with SD card in - so maybe some update in the MMC driver
>> might be responsible for this ?
>>
>> Also - I think that option no_console_suspend doens't work correctly -
>> as many times with suspend I do not see any log message on my console
>> screen. However sometimes the log is shown.
> 
> It would be helpful if you could verify if:
> 
> (1) The problem occurs without no_console_suspend.
> (2) The problem occurs without the SD card.
> 

Hi Rafael,

same problem here, although I was able to resume system (it's basically Intel
machine) , but it was unusable - I was able to switch between terminals and see
output from kernel. So there was:
	- Disabling irq #19;
	- some kind of lock spinning on disk:
IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) Serial ATA Storage
Controller IDE (rev 02)
	but I can't provide more output of that lock now - no sign in logs.

I've made some successful suspend/resume all without sound card active without
problem. Those appear with sound card active, but I must take closer look - will
send info later.

-Jacek
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