linux-kernel - Re: 2.6.31-rc2: BUG: unable to handle kernel NULL pointer dereference

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Date:	Fri, 24 Jul 2009 13:03:34 +0200
From:	Jiri Slaby <jirislaby@...il.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
CC:	Thomas Meyer <thomas@...3r.de>,
	Parag Warudkar <parag.warudkar@...il.com>,
	linux-kernel@...r.kernel.org, sds@...ho.nsa.gov, jmorris@...ei.org,
	eparis@...isplace.org
Subject: Re: 2.6.31-rc2: BUG: unable to handle kernel NULL pointer dereference

On 07/22/2009 10:28 PM, Rafael J. Wysocki wrote:
> On Monday 20 July 2009, Thomas Meyer wrote:
>> Maybe memory in acpi S3 is not so stable? Is this possible?
> 
> Generally, it is, but I haven't seen it happen yet.  In theory, if the memory
> chips are not refreshed appropriately while suspended, something like this may
> happen.

You can check it by a program from:
http://lkml.org/lkml/2008/4/24/439

Only change 1000000000 to circa 5/6 of your memory size. Suspend the
machine after "alloced" appears on the console.
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