Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932925AbXJLJZS (ORCPT ); Fri, 12 Oct 2007 05:25:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932824AbXJLJSa (ORCPT ); Fri, 12 Oct 2007 05:18:30 -0400 Received: from smtp4-g19.free.fr ([212.27.42.30]:59625 "EHLO smtp4-g19.free.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932600AbXJLJS1 (ORCPT ); Fri, 12 Oct 2007 05:18:27 -0400 Message-ID: <470F3BE0.4050807@free.fr> Date: Fri, 12 Oct 2007 11:18:24 +0200 From: John Sigler User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.0.8) Gecko/20061108 SeaMonkey/1.0.6 MIME-Version: 1.0 To: linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org Subject: NMI watchdog Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2061 Lines: 63 Hello, I'm experiencing a full system lockup. I'm using an out-of-tree driver which I suspect is responsible. I'm trying to enable the NMI watchdog. # cat /proc/version Linux version 2.6.22.1-rt9 (gcc version 3.4.6) #1 PREEMPT RT Tue Oct 9 12:25:47 CEST 2007 # cat /proc/cmdline ro root=/dev/hdc1 console=ttyS0,57600n8 console=tty0 panic=3 apic=debug nmi_watchdog=2 However, after boot, the NMI count does not change. # cat /proc/interrupts ; sleep 10 ; cat /proc/interrupts CPU0 0: 99 IO-APIC-edge timer 4: 3822 IO-APIC-edge serial 8: 1 IO-APIC-edge rtc 9: 0 IO-APIC-fasteoi acpi 15: 16443 IO-APIC-edge ide1 16: 2166 IO-APIC-fasteoi eth0 17: 840 IO-APIC-fasteoi eth1 18: 840 IO-APIC-fasteoi eth2 19: 840 IO-APIC-fasteoi eth3 20: 0 IO-APIC-fasteoi Dta1xx 21: 0 IO-APIC-fasteoi Dta1xx NMI: 2895 LOC: 168445 ERR: 0 MIS: 0 CPU0 0: 99 IO-APIC-edge timer 4: 3822 IO-APIC-edge serial 8: 1 IO-APIC-edge rtc 9: 0 IO-APIC-fasteoi acpi 15: 16467 IO-APIC-edge ide1 16: 2173 IO-APIC-fasteoi eth0 17: 845 IO-APIC-fasteoi eth1 18: 845 IO-APIC-fasteoi eth2 19: 845 IO-APIC-fasteoi eth3 20: 0 IO-APIC-fasteoi Dta1xx 21: 0 IO-APIC-fasteoi Dta1xx NMI: 2895 LOC: 169448 ERR: 0 MIS: 0 Does this mean the NMI watchdog is not working correctly on my system? # dmesg | grep NMI ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1]) ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1]) Testing NMI watchdog ... OK. Regards. - 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/