From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751218Ab1IBXco (ORCPT ); Fri, 2 Sep 2011 19:32:44 -0400 Received: from mail.microway.com ([206.173.81.22]:33195 "EHLO microway.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750735Ab1IBXcm (ORCPT ); Fri, 2 Sep 2011 19:32:42 -0400 Message-ID: <50815a5ec08cdb713de8eaa92ad6e8b3.squirrel@www.microway.com> In-Reply-To: <4E56EA02.7020307@intel.com> References: <201108171751.51648.rick@microway.com> <8338f9871d1f52f9376a1eca319a7866.squirrel@www.microway.com> <201108222047.11086.rjw@sisk.pl> <201108221651.35654.rick@microway.com> <20110823171432.GA10794@redhat.com> <4E547B0F.6000001@intel.com> <7f348bab30fb6be7706ef35af999e5b1.squirrel@www.microway.com> <4E56EA02.7020307@intel.com> Date: Fri, 2 Sep 2011 19:32:38 -0400 Subject: Re: kernel oops and panic in acpi_atomic_read under 2.6.39.3. call trace included From: rick@microway.com To: "Huang Ying" Cc: "Don Zickus" , "Rafael J. Wysocki" , "linux-kernel@vger.kernel.org" , "Richard Houghton" , "ACPI Devel Mailing List" , "Len Brown" , "Matthew Garrett" User-Agent: SquirrelMail/1.4.21 X-Priority: 3 (Normal) Importance: Normal X-Sanitizer: Advosys mail filter MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Huang, Sorry for the delay in my response. Hurricane Irene delayed our testing a bit. I had to switch the 5620 CPUS I had for 5670s. After 4 days of running (it was usually about 2 before) I finally got this output in dmesg: [337296.365930] GHES: gar accessed: 0, 0xbf7b9370 [337296.365936] ACPI atomic read mem: addr 0xbf7b9370 mapped to ffffc90013ee8370 It is not mapped to 0 as expected, but it didn't crash now! Thanks, Rick > On 08/25/2011 11:47 PM, rick@microway.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 >