From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935245AbYCSUwu (ORCPT ); Wed, 19 Mar 2008 16:52:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758783AbYCSTqq (ORCPT ); Wed, 19 Mar 2008 15:46:46 -0400 Received: from catapult-mx.catapult.com ([192.94.66.29]:1039 "EHLO Catapult-mx.catapult.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758773AbYCSTqp (ORCPT ); Wed, 19 Mar 2008 15:46:45 -0400 Subject: Re: Timer interrupt stops, causes soft lockup From: "Joel K. Greene" To: Pavel Machek Cc: linux-kernel@vger.kernel.org In-Reply-To: <20080317154639.GA4102@ucw.cz> References: <1205235450.18463.45.camel@linuxdt036.nc.catapult.com> <47D6423D.1E6F.00AA.0@novell.com> <1205255048.18463.60.camel@linuxdt036.nc.catapult.com> <1205260328.18463.67.camel@linuxdt036.nc.catapult.com> <47D68B9D.1E6F.00AA.0@novell.com> <1205265642.18463.82.camel@linuxdt036.nc.catapult.com> <1205322793.20205.9.camel@linuxdt036.nc.catapult.com> <1205326713.20205.27.camel@linuxdt036.nc.catapult.com> <1205332212.20205.33.camel@linuxdt036.nc.catapult.com> <1205510009.29658.83.camel@linuxdt036.nc.catapult.com> <20080317154639.GA4102@ucw.cz> Content-Type: text/plain Organization: Catapult Communications Corporation Date: Tue, 18 Mar 2008 10:40:18 -0400 Message-Id: <1205851218.2023.14.camel@linuxdt036.nc.catapult.com> Mime-Version: 1.0 X-Mailer: Evolution 2.6.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Pavel, > Does nosmp help? We have not tried. I would expect that it would, but I think that's changing the system too much, and we cannot do that in production. As we have seen system run for a couple of months without demonstrating the issue I think that proving the negative is very difficult. I am focusing on trying to force the issue so we can gather information. > > Does noapic/nolapic help? These do not affect the problem. Thanks! Joel.