From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932299AbWGQHIo (ORCPT ); Mon, 17 Jul 2006 03:08:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932350AbWGQHIo (ORCPT ); Mon, 17 Jul 2006 03:08:44 -0400 Received: from ug-out-1314.google.com ([66.249.92.175]:15463 "EHLO ug-out-1314.google.com") by vger.kernel.org with ESMTP id S932299AbWGQHIn (ORCPT ); Mon, 17 Jul 2006 03:08:43 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=Tr3+Nrw8Qdl0cTQJXCqUES1qg7x3eYScBkZeQaonKLQxhOD66uy9LGaF3Pq1DebZk3eI9trpBDjAkwWecuSadfrX3gEgSjypuW1Z1mhs+W2tpdlIR73GuapVCoZK44csyRWggKgoSQBy/AbrOc2rz8W2Mur88CEnTOM2qUWR3zI= Message-ID: Date: Mon, 17 Jul 2006 00:08:41 -0700 From: "Vikas Kedia" To: linux-kernel@vger.kernel.org Subject: kernel panic at load average of 24 is it acceptable ? MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I gave the following command: $stress --cpu 12 --io 10 --vm 10 --vm-bytes 128M --timeout 100000s --verbose and then my top shows: top - 01:23:10 up 3:13, 3 users, load average: 24.29, 24.32, 24.50 and then the system gave a kernel panic. Here are some of the entries in the log files: dmesg [ 0.000000] ACPI: Unable to locate RSDP [ 0.000000] Virtual Wire compatibility mode. [ 0.000000] OEM ID: TYAN <6>Product ID: S2881 <6>APIC at: 0xFEE00000 [ 0.000000] Processor #0 15:5 APIC version 16 [ 0.000000] I/O APIC #1 Version 17 at 0xFEC00000. [ 0.000000] I/O APIC #2 Version 17 at 0xFEBFF000. [ 0.000000] I/O APIC #3 Version 17 at 0xFEBFE000. [ 33.869489] Using IO-APIC 1 [ 33.869495] Using IO-APIC 2 [ 33.869497] Using IO-APIC 3 [ 34.120904] ACPI: Subsystem revision 20051216 [ 34.120906] ACPI: Interpreter disabled. [ 34.123482] PCI: MSI quirk detected. pci_msi_quirk set. [ 34.123486] PCI: MSI quirk detected. pci_msi_quirk set. /var/log/messages Jul 16 17:02:36 srv1 kernel: [ 2435.535458] Machine check events logged Jul 16 17:07:36 srv1 kernel: [ 2735.003362] Machine check events logged Jul 16 17:12:36 srv1 kernel: [ 3034.461297] Machine check events logged Jul 16 17:17:36 srv1 kernel: [ 3333.929201] Machine check events logged Jul 16 17:22:36 srv1 kernel: [ 3633.397107] Machine check events logged Jul 16 17:27:36 srv1 kernel: [ 3932.875013] Machine check events logged Jul 16 17:32:36 srv1 kernel: [ 4232.352889] Machine check events logged Jul 16 17:37:36 srv1 kernel: [ 4531.820809] Machine check events logged Jul 16 17:42:36 srv1 kernel: [ 4831.288708] Machine check events logged Jul 16 17:47:36 srv1 kernel: [ 5130.756612] Machine check events logged Jul 16 17:52:36 srv1 kernel: [ 5430.224522] Machine check events logged Jul 16 17:57:36 srv1 kernel: [ 5729.692441] Machine check events logged Jul 16 19:10:05 srv1 kernel: [ 34.995486] PCI: MSI quirk detected. pci_msi_quirk set. Jul 16 19:10:05 srv1 kernel: [ 34.995489] PCI: MSI quirk detected. pci_msi_quirk set. The screen shot of the console (through the KVM) is available here: http://www.visitlab.com/styles/basic/images/ubuntu-error1.JPG http://www.visitlab.com/styles/basic/images/ubuntu-error2.JPG The memtest ran fine for 8 hours: http://www.visitlab.com/styles/basic/images/memtest.JPG My questions are: 1. Kernel panic at load average of 24 is it acceptable ? 2. If not how do I go about debugging this kernel panic ? Regards, v