Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262871AbVDHQdc (ORCPT ); Fri, 8 Apr 2005 12:33:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262872AbVDHQdc (ORCPT ); Fri, 8 Apr 2005 12:33:32 -0400 Received: from wproxy.gmail.com ([64.233.184.199]:23089 "EHLO wproxy.gmail.com") by vger.kernel.org with ESMTP id S262871AbVDHQdR (ORCPT ); Fri, 8 Apr 2005 12:33:17 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:mime-version:content-type:content-transfer-encoding; b=V8LcH3n0pHZ7TdpMFT2K8JsBSIi4nzGmV/OOUPj0b6A60WOUPIQRPk5kvCBj7sDAwt+ifFWCH0sd4p+bvHU9ciWHByIrkkcYrr4/SRc1vH+789Fw5zxYEEdf9D2KlFi4lLbYYH5nQfottImqmJI51RLb9c7EpRBQSNxjMxfHJjs= Message-ID: Date: Fri, 8 Apr 2005 12:33:15 -0400 From: Clem Taylor Reply-To: Clem Taylor To: linux-kernel@vger.kernel.org Subject: re: x86-64 bad pmds in 2.6.11.6 Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1515 Lines: 39 Dave Jones reported seeing bad pmd messages in 2.6.11.6. I've been seeing them with 2.6.11 and today with 2.6.11.6. When I first saw the problem I ran memtest86 and it didn't catch anything after ~3hours. However, I don't see them when X starts. They tend to happen after a program segfaults: 2.6.11: Apr 3 23:23:33 klaatu kernel: sh[16361]: segfault at 0000000000000000 rip 0000000000000000 rsp 00007ffffffff020 error 14 Apr 3 23:23:33 klaatu kernel: mm/memory.c:97: bad pmd ffff810027171010(00000000006b68b9). .. many more ... 2.6.11.6: Apr 8 12:03:17 klaatu kernel: grep[20971]: segfault at 0000000000000000 rip 0000000000000000 rsp 00007ffffffff090 error 14 Apr 8 12:03:17 klaatu kernel: mm/memory.c:97: bad pmd ffff810095929010(0000000000000015). .... many more ... Apr 8 12:03:18 klaatu kernel: mm/memory.c:97: bad pmd ffff8100959299d0(000034365f363878). Apr 8 12:03:18 klaatu kernel: grep[21116]: segfault at 0000000000000000 rip 0000000000000000 rsp 00007ffffffff0a0 error 14 Apr 8 12:03:18 klaatu kernel: mm/memory.c:97: bad pmd ffff810095f5b000(000000000000000f). ... At the time I was doing a find ... -exec grep -H ... over a linux kernel tree. I repeated the find and I didn't see segfaults the second run. --Clem - 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/