Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751500AbVJZXdQ (ORCPT ); Wed, 26 Oct 2005 19:33:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751504AbVJZXdQ (ORCPT ); Wed, 26 Oct 2005 19:33:16 -0400 Received: from e34.co.us.ibm.com ([32.97.110.152]:33196 "EHLO e34.co.us.ibm.com") by vger.kernel.org with ESMTP id S1751500AbVJZXdP (ORCPT ); Wed, 26 Oct 2005 19:33:15 -0400 Subject: Re: 2.6.14-rc4-rt7 From: john stultz To: William Weston Cc: Rui Nuno Capela , george@mvista.com, Ingo Molnar , Fernando Lopez-Lezcano , Mark Knecht , Steven Rostedt , david singleton , Thomas Gleixner , linux-kernel@vger.kernel.org, cc@ccrma.Stanford.EDU In-Reply-To: References: <1129852531.5227.4.camel@cmn3.stanford.edu> <20051021080504.GA5088@elte.hu> <1129937138.5001.4.camel@cmn3.stanford.edu> <20051022035851.GC12751@elte.hu> <1130182121.4983.7.camel@cmn3.stanford.edu> <1130182717.4637.2.camel@cmn3.stanford.edu> <1130183199.27168.296.camel@cog.beaverton.ibm.com> <20051025154440.GA12149@elte.hu> <1130264218.27168.320.camel@cog.beaverton.ibm.com> <435E91AA.7080900@mvista.com> <20051026082800.GB28660@elte.hu> <435FA8BD.4050105@mvista.com> <435FBA34.5040000@mvista.com> <435FEAE7.8090104@rncbc.org> Content-Type: text/plain Date: Wed, 26 Oct 2005 16:33:11 -0700 Message-Id: <1130369591.27168.358.camel@cog.beaverton.ibm.com> Mime-Version: 1.0 X-Mailer: Evolution 2.2.3 (2.2.3-2.fc4) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1756 Lines: 42 On Wed, 2005-10-26 at 15:07 -0700, William Weston wrote: > On Wed, 26 Oct 2005, Rui Nuno Capela wrote: > > > Just noticed a couple or more of this on dmesg. Maybe its old news and > > being discussed already. Otherwise my P4@2.53Ghz/UP laptop boots and > > runs without hicups on 2.6.14-rc5-rt7 (config.gz attached). > > > > ... time warped from 13551912584 to 13551905960. > > ... system time: 13488892865 .. 13488892865. > > udevstart/1579[CPU#0]: BUG in get_monotonic_clock_ts at > > kernel/time/timeofday.c: > > 262 > > [] __WARN_ON+0x4f/0x6c (8) > > [] get_monotonic_clock_ts+0x27a/0x2f0 (40) > > [] kmem_cache_alloc+0x51/0xac (76) > > [] copy_process+0x2ff/0xeed (44) > > [] unlock_page+0x17/0x4a (12) > > [] do_wp_page+0x245/0x372 (20) > > [] do_fork+0x69/0x1b5 (56) > > [] do_page_fault+0x432/0x543 (32) > > [] sys_clone+0x32/0x36 (72) > > [] sysenter_past_esp+0x54/0x75 (16) > > I'm getting these with two different machines running 2.6.14-rc5-rt7 with > Steven's ktimer_interrupt() patch from yesterday. Did not see these with > previous -rt kernels. Shutting down NTP makes no difference. > > This is from the athlon-xp/via-kt400 box (xeon smt box looks similar): I'm grabbing rt7 to try to reproduce this. Not yet sure what the cause could be. From Rui's dmesg the tsc clocksource was being used, I assume this is the case with you as well, William? thanks -john - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/