From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752457Ab1ARPvz (ORCPT ); Tue, 18 Jan 2011 10:51:55 -0500 Received: from mail-vw0-f46.google.com ([209.85.212.46]:59258 "EHLO mail-vw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752063Ab1ARPvy (ORCPT ); Tue, 18 Jan 2011 10:51:54 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=date:from:to:cc:subject:message-id:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; b=N8Qh0dI6s0LYISjTtuXrF/xm9FG1ltexbpa8szeF5iwrSWEW6NYte6kitNX0qMJUFY ry2aAIBIivdqe+85zMCxbbMTCcUIaJqDbvhsQq0p0PHq1c8rChvXnD9Uhb0A+o3HN/rF A0XB283NCQSctTzomF/b3gt2absjL+oIxduk8= Date: Tue, 18 Jan 2011 23:52:12 +0800 From: =?utf-8?Q?Am=C3=A9rico?= Wang To: Anithra P Janakiraman Cc: linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/0] Panic on softdog timeout Message-ID: <20110118155212.GB17710@hack> References: <4D358B34.7040902@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4D358B34.7040902@linux.vnet.ibm.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jan 18, 2011 at 06:14:36PM +0530, Anithra P Janakiraman wrote: > >Hi. > >We currently have no way of determining the reason for failure when a >softdog timeout occurs. At the minimum a snapshot of the system would >help to determine the cause. >The attached patch invokes panic on softdog timeout iff kdump is >configured, if kdump is not configured it works as usual. > We don't do it in this way, check softlockup_panic, we have a boot parameter, i.e. "softlockup_panic=". :)