linux-kernel - Re: kernel oops and panic in acpi_atomic_read under 2.6.39.3. call trace included

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Message-ID: <4E56EA02.7020307@intel.com>
Date:	Fri, 26 Aug 2011 08:34:10 +0800
From:	Huang Ying <ying.huang@...el.com>
To:	"rick@...roway.com" <rick@...roway.com>
CC:	Don Zickus <dzickus@...hat.com>, "Rafael J. Wysocki" <rjw@...k.pl>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Richard Houghton <rhoughton@...roway.com>,
	ACPI Devel Mailing List <linux-acpi@...r.kernel.org>,
	Len Brown <lenb@...nel.org>,
	Matthew Garrett <mjg59@...f.ucam.org>
Subject: Re: kernel oops and panic in acpi_atomic_read under 2.6.39.3.   call
 trace included

On 08/25/2011 11:47 PM, rick@...roway.com wrote:
> Hi Huang,
> 
> My new setup reproduced the panic. However I do not have any gar accessed
> messages on it.  The gar mapped messages are in my previous email.  Here
> is the latest call trace.  There is no GHES output prior to it:
> 

That is wired.  Can you try the patch attached?  If my guessing is
correct, there will be no panic, but something as follow will be in dmesg:

ACPI atomic read mem: addr 0xxxxx mapped to 0

Best Regards,
Huang Ying

View attachment "dbg_ghes.patch" of type "text/x-patch" (1250 bytes)