From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1764831AbXGSJL4 (ORCPT ); Thu, 19 Jul 2007 05:11:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754319AbXGSJLr (ORCPT ); Thu, 19 Jul 2007 05:11:47 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:44348 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752515AbXGSJLq (ORCPT ); Thu, 19 Jul 2007 05:11:46 -0400 Date: Thu, 19 Jul 2007 11:11:42 +0200 From: Ingo Molnar To: Andrew Morton Cc: Ravikiran G Thirumalai , linux-kernel@vger.kernel.org, shai@scalex86.org Subject: Re: [patch] Change softlockup trigger limit using a kernel parameter Message-ID: <20070719091142.GA28723@elte.hu> References: <20070716222650.GA5947@localdomain> <20070718160858.75865461.akpm@linux-foundation.org> <20070719054121.GA15074@localdomain> <20070718230907.741ae56c.akpm@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070718230907.741ae56c.akpm@linux-foundation.org> User-Agent: Mutt/1.5.14 (2007-02-12) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.0 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.0.3 -1.0 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org * Andrew Morton wrote: > > +softlockup_thresh: > > + > > +This value can be used to lower the softlockup tolerance > > +threshold. The default threshold is 10s. If a cpu is locked up > > +for 10s, the kernel complains. Valid values are 1-10s. > > + > > neato. please make sure this is applied after the softlockup watchdog patches i already did. (in particular the cleanup patch, which this could interact with) also, i think the valid threshold should be between 1 and 60 seconds i think. Ingo