Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261743AbVECPSh (ORCPT ); Tue, 3 May 2005 11:18:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261739AbVECPQf (ORCPT ); Tue, 3 May 2005 11:16:35 -0400 Received: from mx1.redhat.com ([66.187.233.31]:39298 "EHLO mx1.redhat.com") by vger.kernel.org with ESMTP id S261712AbVECPQE (ORCPT ); Tue, 3 May 2005 11:16:04 -0400 Date: Tue, 3 May 2005 11:15:54 -0400 From: Dave Jones To: Andi Kleen Cc: Chris Wright , Christopher Warner , Hugh Dickins , cwarner@kernelcode.com, "Sergey S. Kostyliov" , Clem Taylor , linux-kernel@vger.kernel.org Subject: Re: x86-64 bad pmds in 2.6.11.6 II Message-ID: <20050503151554.GG18109@redhat.com> Mail-Followup-To: Dave Jones , Andi Kleen , Chris Wright , Christopher Warner , Hugh Dickins , cwarner@kernelcode.com, "Sergey S. Kostyliov" , Clem Taylor , linux-kernel@vger.kernel.org References: <20050419133509.GF7715@wotan.suse.de> <1114773179.9543.14.camel@jasmine> <20050429173216.GB1832@redhat.com> <20050502170042.GJ7342@wotan.suse.de> <1115047729.19314.1.camel@jasmine> <20050502203359.GR23013@shell0.pdx.osdl.net> <20050502210839.GB2230@redhat.com> <20050503142858.GZ7342@wotan.suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050503142858.GZ7342@wotan.suse.de> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1718 Lines: 46 On Tue, May 03, 2005 at 04:28:58PM +0200, Andi Kleen wrote: > On Mon, May 02, 2005 at 05:08:39PM -0400, Dave Jones wrote: > > On Mon, May 02, 2005 at 01:33:59PM -0700, Chris Wright wrote: > > > * Christopher Warner (chris@servertogo.com) wrote: > > > > Actually I am testing your patches. Its just going to take some time. > > > > The problem occurs under severe load and I'm in the process of doing > > > > load testing this for an inhouse app this week. Soon as i'm able to send > > > > debug information I will. > > > > > > Same here. I've just never found a way to trigger other than wait. > > > > *nod*, the current test-kernel update for Fedora also has your > > debugging patches, but none of the users have hit them (or reported > > them) yet. > > The second version with the WARN_ON? If not please update to that one. I lost track.. Here's what I included.. --- linux-2.6.11/mm/memory.c~ 2005-04-27 13:37:20.000000000 -0400 +++ linux-2.6.11/mm/memory.c 2005-04-27 13:37:45.000000000 -0400 @@ -94,6 +94,7 @@ static inline void clear_pmd_range(struc if (pmd_none(*pmd)) return; if (unlikely(pmd_bad(*pmd))) { + printk("%s:%d: ", current->comm, current->pid); pmd_ERROR(*pmd); pmd_clear(pmd); return; @@ -113,6 +114,7 @@ static inline void clear_pud_range(struc unsigned long addr = start, next; pmd_t *pmd, *__pmd; + WARN_ON(start == end); if (pud_none(*pud)) return; if (unlikely(pud_bad(*pud))) { Dave - 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/