From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756001Ab1HUWQI (ORCPT ); Sun, 21 Aug 2011 18:16:08 -0400 Received: from one.firstfloor.org ([213.235.205.2]:34401 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755885Ab1HUWQF (ORCPT ); Sun, 21 Aug 2011 18:16:05 -0400 Date: Mon, 22 Aug 2011 00:16:02 +0200 From: Andi Kleen To: "Justin P. Mattock" Cc: "linux-kernel@vger.kernel.org" , Andi Kleen , tony.luck@intel.com Subject: Re: using mce_inject I get: RIP 10: {ttm_bo_unref+0xf/0x45 [ttm]} Message-ID: <20110821221602.GK25996@one.firstfloor.org> References: <4E506DEA.1070601@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4E506DEA.1070601@gmail.com> User-Agent: Mutt/1.4.2.2i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Aug 20, 2011 at 07:31:06PM -0700, Justin P. Mattock wrote: > not sure if I am running mce_test correctly, but during its routine of > testing things I do get a pause with everything, then the below shows up > in dmesg..: The message is expected, but there should be no noticeable pause. -Andi > > http://fpaste.org/kMRd/ > > > [ 1810.670434] Triggering MCE exception on CPU 1 > [ 1810.670462] [Hardware Error]: CPU 1: Machine Check Exception: 6 Bank > 4: b300000000000000 > [ 1810.670467] [Hardware Error]: RIP 73:<0000000012343434> > [ 1810.670470] [Hardware Error]: TSC 38d1002c216 > [ 1810.670474] [Hardware Error]: PROCESSOR 0:6f6 TIME 1313892803 SOCKET > 0 APIC 1 > [ 1810.670477] [Hardware Error]: Run the above through 'mcelog --ascii' > [ 1810.670481] [Hardware Error]: Machine check: Processor context corrupt > [ 1810.670483] [Hardware Error]: Fake kernel panic: Fatal Machine check > [ 1810.670495] MCE exception done on CPU 1 > [ 1819.064721] Triggering MCE exception on CPU 1 > > seems light of a pause, then everything resumes properly(music, etc..). > Is this something that needs attention, or are these tests as extreme as > can be, and should simply be ignored? > (Note: if there is a mce list somewhere let me know so I direct this to > the proper people) > > Justin P. Mattock > -- ak@linux.intel.com -- Speaking for myself only.