Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756991AbYCKOAW (ORCPT ); Tue, 11 Mar 2008 10:00:22 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752218AbYCKOAH (ORCPT ); Tue, 11 Mar 2008 10:00:07 -0400 Received: from mga11.intel.com ([192.55.52.93]:22423 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752065AbYCKOAG convert rfc822-to-8bit (ORCPT ); Tue, 11 Mar 2008 10:00:06 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.25,480,1199692800"; d="scan'208";a="305304179" X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT Subject: RE: endless loop in native_flush_tlb_others in smp_64.c Date: Tue, 11 Mar 2008 07:01:56 -0700 Message-ID: <924EFEDD5F540B4284297C4DC59F3DEEAF9755@orsmsx423.amr.corp.intel.com> In-Reply-To: <200803111130.55355.chunkeey@web.de> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: endless loop in native_flush_tlb_others in smp_64.c Thread-Index: AciDY9WyaHKE8dJ1Rp66iQjB//+kdwAHF4Qg References: <200803102316.54457.chunkeey@web.de> <200803111130.55355.chunkeey@web.de> From: "Pallipadi, Venkatesh" To: , "Jike Song" Cc: "Linux Kernel" , "Ingo Molnar" , "Thomas Gleixner" , "Brown, Len" X-OriginalArrivalTime: 11 Mar 2008 14:00:05.0368 (UTC) FILETIME=[35520780:01C88380] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1992 Lines: 61 >-----Original Message----- >From: chunkeey@web.de [mailto:chunkeey@web.de] >Sent: Tuesday, March 11, 2008 3:31 AM >To: Jike Song >Cc: Linux Kernel; Pallipadi, Venkatesh; Ingo Molnar; Thomas >Gleixner; Brown, Len >Subject: Re: endless loop in native_flush_tlb_others in smp_64.c > >On Tuesday 11 March 2008 10:55:40 Jike Song wrote: >> On Tue, Mar 11, 2008 at 6:16 AM, Chr wrote: >> > Hi, >> > ever since I moved to 2.6.25-rcY (Y should be between 2 and 5!). >> > I've seen several, but really hard-to-catch instant freezes on my >> > AMD64 Athlon X2 4200+ system... >> >> Here I guess 2.6.24 is fine for you? >Yes, 2.6.24(.3) is fine! > >> > Most of them happend in X.org so at first I thought it >had something to >> > do with the NVIDIA module... BUT, one time it froze "a way >before" the >> > module could get loaded... >> > >> > --- >> > SYSRQ-P revealed that the CPU were looping inside: >> > >> > smp_64.c native_flush_tlb_others: >> > assembler code: >> > < 1ee: f3 90 pause >> > < 1f0: f6 45 00 03 testb $0x3,0x0(%rbp) >> > < 1f4: 75 f8 jne 1ee >> > >> > >> > also known as: (in C) >> > >> > while (!cpus_empty(f->flush_cpumask)) >> > cpu_relax(); >> > >> > So... has anyone a good idea what's happening here >exactly? Or is there >> > already another topic or even a patch available? >> >> Would you please attach your config file? Do you have >CONFIG_CPU_IDLE set? >(Attached). Yes, CONFIG_CPU_IDLE is enabled! I guess I should >now disable it, >try again and report back, right?! ;-) I don't think it is related to CPU_IDLE. SYSRQ-T that Thomas asked should give more clues. Thanks, Venki -- 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/