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

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Message-ID: <c4e36d110805070743m6f47e83al19ec37648dc8043d@mail.gmail.com>
Date:	Wed, 7 May 2008 16:43:39 +0200
From:	"Zdenek Kabelac" <zdenek.kabelac@...il.com>
To:	"Andrea Arcangeli" <andrea@...ranet.com>
Cc:	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>
Subject: Re: Suspend to memory is freezing my machine

2008/5/7 Andrea Arcangeli <andrea@...ranet.com>:
>
> On Sun, May 04, 2008 at 09:37:54AM +0200, Zdenek Kabelac wrote:
>  > Hello
>  >
>  > 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).
>  >
>  > 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.
>
>  Same here. Suspend to ram crashes on resume starting in 2.6.25 (didn't
>  test 2.6.25-rc in my production system).
>
>  Because this isn't 100% reproducible bisecting may return false
>  negatives.


Of course I've planned to bisect for the lost console logging - maybe tomorrow.

The crash in suspend is pretty random - I've never got the lock at my
will - usually it happens when I completely do not expect it ;)

Zdenek
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