Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754101AbZGFR0w (ORCPT ); Mon, 6 Jul 2009 13:26:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753062AbZGFR0n (ORCPT ); Mon, 6 Jul 2009 13:26:43 -0400 Received: from mail.anarazel.de ([217.115.131.40]:56020 "EHLO smtp.anarazel.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753091AbZGFR0m (ORCPT ); Mon, 6 Jul 2009 13:26:42 -0400 From: Andres Freund To: Joao Correia Subject: Re: Soft-Lockup/Race in networking in 2.6.31-rc1+195 ( possibly?caused by netem) Date: Mon, 6 Jul 2009 19:26:43 +0200 User-Agent: KMail/1.12.0 (Linux/2.6.31-rc1-andres-00457-g396ca83-dirty; KDE/4.2.95; x86_64; ; ) Cc: Jarek Poplawski , Arun R Bharadwaj , Thomas Gleixner , Stephen Hemminger , netdev@vger.kernel.org, LKML References: <200907031326.21822.andres@anarazel.de> <20090706163106.GA4559@ami.dom.local> In-Reply-To: MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200907061926.43625.andres@anarazel.de> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 974 Lines: 23 On Monday 06 July 2009 19:23:18 Joao Correia wrote: > Hello > > Since i already had the kernel compiled and ready to boot when i read > this, i gave it a go anyway :-). > > I can reproduce the freeze with those 4 patches applied, so i can > confirm that its, at least, related to, or exposed by, those patches. > There must be something else too, or its just too much fuzziness, but > the freeze takes a bit more time (approximately five minutes, give or > take) compared to the instant freeze before, but its there with the > patches, and without them, no freeze. > > I assume there isnt a "safe" way to get them out of current .31-rc's, > right? `echo 0 > /proc/sys/kernel/timer_migration` should mitigate the problem. Andres -- 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/