From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752501AbZHJUHS (ORCPT ); Mon, 10 Aug 2009 16:07:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751987AbZHJUHR (ORCPT ); Mon, 10 Aug 2009 16:07:17 -0400 Received: from outbound-dub.frontbridge.com ([213.199.154.16]:64508 "EHLO IE1EHSOBE002.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751506AbZHJUHQ (ORCPT ); Mon, 10 Aug 2009 16:07:16 -0400 X-SpamScore: -36 X-BigFish: VPS-36(z21eWz62a3L1432R98dN936eM19c2kzz1202hzzz32i6bh203h62h) X-Spam-TCS-SCL: 1:0 X-WSS-ID: 0KO6FUM-02-GK6-02 X-M-MSG: Date: Mon, 10 Aug 2009 22:05:29 +0200 From: Robert Richter To: Andi Kleen CC: Johannes Stezenbach , Ingo Molnar , x86@kernel.org, linux-kernel@vger.kernel.org, "Rafael J. Wysocki" , Steven Rostedt Subject: Re: 2.6.31-rc5 regression: x86 MCE malfunction on Thinkpad T42p Message-ID: <20090810200529.GC2258@erda.amd.com> References: <20090807170942.GB9177@sig21.net> <87k51cgdt8.fsf@basil.nowhere.org> <20090810122731.GA5863@sig21.net> <20090810123228.GD6838@basil.fritz.box> <20090810125651.GB6082@sig21.net> <20090810132923.GA4418@elte.hu> <20090810192658.GA15513@sig21.net> <20090810194413.GE6838@basil.fritz.box> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20090810194413.GE6838@basil.fritz.box> User-Agent: Mutt/1.5.16 (2007-06-09) X-OriginalArrivalTime: 10 Aug 2009 20:05:30.0885 (UTC) FILETIME=[E9832B50:01CA19F5] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10.08.09 21:44:13, Andi Kleen wrote: > > But in demsg I got this: > > AFAIK that's already fixed. cc Robert to confirm. Not sure if the fix made it into 2.6.31 though? The warning I fixed was in rb_advance_reader(). Fix is already upstream: 193df82 ring-buffer: Fix advance of reader in rb_buffer_peek() But this seems to be different, a time stamp issue? CC'ing Steve. -Robert > > -Andi > > > > > Delta way too big! 18446744022868427516 ts=18446744022868427516 write stamp = 0 > > ------------[ cut here ]------------ > > WARNING: at kernel/trace/ring_buffer.c:1392 rb_reserve_next_event+0x150/0x309() > > Hardware name: 2373Y4M > > Modules linked in: ath5k mac80211 ath cfg80211 oprofile bnep sco rfcomm l2cap bluetooth ehci_hcd uhci_hc > > Pid: 13478, comm: opcontrol Not tainted 2.6.31-rc5 #5 > > Call Trace: > > [] warn_slowpath_common+0x60/0x90 > > [] warn_slowpath_null+0xd/0x10 > > [] rb_reserve_next_event+0x150/0x309 > > [] ? get_page_from_freelist+0x86/0x35a > > [] ring_buffer_lock_reserve+0xe7/0x135 > > [] op_cpu_buffer_write_reserve+0x1a/0x4b [oprofile] > > [] op_add_code+0x57/0x98 [oprofile] > > [] ? get_page_from_freelist+0x86/0x35a > > [] ? page_fault+0x0/0x8 > > [] log_sample+0x2b/0x6c [oprofile] > > [] ? filemap_fault+0x74/0x32b > > [] oprofile_add_sample+0x3b/0x6b [oprofile] > > [] ppro_check_ctrs+0x66/0xdb [oprofile] > > [] ? __do_fault+0x303/0x32f > > [] profile_exceptions_notify+0x1f/0x26 [oprofile] > > [] notifier_call_chain+0x2b/0x55 > > [] __atomic_notifier_call_chain+0x1a/0x3a > > [] atomic_notifier_call_chain+0xc/0xe > > [] notify_die+0x2d/0x2f > > [] do_nmi+0x63/0x222 > > [] nmi_stack_correct+0x28/0x2d > > [] ? page_fault+0x0/0x8 > > ---[ end trace d174f39c63495e01 ]--- > > > > > > Thanks > > Johannes > > > > -- > ak@linux.intel.com -- Speaking for myself only. > -- Advanced Micro Devices, Inc. Operating System Research Center email: robert.richter@amd.com