From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753974AbYBQUXE (ORCPT ); Sun, 17 Feb 2008 15:23:04 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752930AbYBQUWv (ORCPT ); Sun, 17 Feb 2008 15:22:51 -0500 Received: from rv-out-0910.google.com ([209.85.198.185]:5122 "EHLO rv-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752673AbYBQUWu (ORCPT ); Sun, 17 Feb 2008 15:22:50 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=VN/CUVGNWHrK/2sGxspTmSJ0yXFMnLRiFU967qXh0nYQqA+hxsPUimupCdLFu6cF3WIbjQTdXrTd7CPfQMhJ2I/+wnuCGr+4YuBpaRX/P0h80l7fnxG4jolsmaj9jlhpcU2nZe1RLF9be6MWMHJLe8r0q+SsxefAgHT71KE7U+Q= Message-ID: <939d53060802171222m4619de97u3aa4ed7cb27e6e75@mail.gmail.com> Date: Sun, 17 Feb 2008 21:22:48 +0100 From: "Benjamin Thery" To: "Frans Pop" , davem@davemloft.net Subject: Re: [2.6.25-rc2] System freezes ca. 1 minute after logging into KDE Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org In-Reply-To: <200802171139.13615.elendil@planet.nl> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <200802171139.13615.elendil@planet.nl> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Feb 17, 2008 11:39 AM, Frans Pop wrote: > (resend a third time because previous attempts never reached the lists > due to a bug in my MUA; my apologies to David for spamming his inbox) > > Linus Torvalds wrote: > > But hey, you can try to prove me wrong. I dare you. > Me too, me too! > > Weird issue this. > About a minute after logging into KDE the system freezes, but only > partially. The keyboard is completely dead in all cases (no console > switching, no SysRq), but some tasks stay running. One time music continued > playing, other times it stopped. One time the desktop clock continued > ticking, other times it stopped. One time I could close a window using the > mouse, but other windows were frozen. > It's not just KDE that's frozen; one time I switched to VT1 before the > freeze happened, but that became unusable too. > Zilch in the logs. > > I've bisected it down to: > commit 69cc64d8d92bf852f933e90c888dfff083bd4fc9 > Author: David S. Miller > [NDISC]: Fix race in generic address resolution > > Confirmed that this is really the culprit by reverting this commit on top > of -rc2, which is now running fine. > > I'm using IPv6 (local network only) together with IPv4, use a bridge (br0) > and have an NFS4 mount active. I've encountered the same issue last Thursday. Here, I can hang my machine with ping6. I've also bisected it down to the same commit. I've sent some kernel traces which shows how the soft lock up occurs. See thread: "[PATCH][RFC] race in generic address resolution" http://www.spinics.net/lists/netdev/msg55375.html Benjamin > > Cheers, > FJP > >