From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935120AbXGQSTq (ORCPT ); Tue, 17 Jul 2007 14:19:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759240AbXGQSTi (ORCPT ); Tue, 17 Jul 2007 14:19:38 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:36077 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758758AbXGQSTh (ORCPT ); Tue, 17 Jul 2007 14:19:37 -0400 Date: Tue, 17 Jul 2007 20:18:57 +0200 From: Ingo Molnar To: Olaf Kirch Cc: Jarek Poplawski , Linus Torvalds , linux-kernel@vger.kernel.org, davem@davemloft.net Subject: Re: [patch] revert: [NET]: Fix races in net_rx_action vs netpoll Message-ID: <20070717181857.GA16918@elte.hu> References: <20070716091236.GA10718@elte.hu> <200707171607.08644.olaf.kirch@oracle.com> <20070717165720.GA4386@elte.hu> <200707172006.11664.olaf.kirch@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200707172006.11664.olaf.kirch@oracle.com> 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 * Olaf Kirch wrote: > Hi Ingo, > > On Tuesday 17 July 2007 18:57, Ingo Molnar wrote: > > i've done the patch below, but it did not change the timeouts nor did it > > solve the 'no network' problem. netconsole output hung earlier as well. > Hm, pity. > > To rule out any e1000 problem, can you try the the following please, > both with HZ=250 and HZ=1000? done, find the logs here: http://redhat.com/~mingo/misc/100hz.log http://redhat.com/~mingo/misc/1000hz.log (one is HZ=100, the other HZ=1000. HZ=100 produces a hung network just like HZ=250.) no 'rx_sched set' messages in either case. Network still hung for HZ=100, and is working for HZ=1000. Ingo