From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755705AbYENVBk (ORCPT ); Wed, 14 May 2008 17:01:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754822AbYENVBb (ORCPT ); Wed, 14 May 2008 17:01:31 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:39586 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754311AbYENVBa (ORCPT ); Wed, 14 May 2008 17:01:30 -0400 Date: Wed, 14 May 2008 14:00:32 -0700 From: Andrew Morton To: Zan Lynx Cc: linux-kernel@vger.kernel.org, Ingo Molnar , Thomas Gleixner Subject: Re: 2.6.26-rc2-mm1 Message-Id: <20080514140032.83fc25b7.akpm@linux-foundation.org> In-Reply-To: <1210798147.4234.5.camel@localhost> References: <20080514010129.4f672378.akpm@linux-foundation.org> <1210798147.4234.5.camel@localhost> X-Mailer: Sylpheed version 2.2.4 (GTK+ 2.8.20; i486-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 14 May 2008 14:49:07 -0600 Zan Lynx wrote: > On Wed, 2008-05-14 at 01:01 -0700, Andrew Morton wrote: > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.26-rc2/2.6.26-rc2-mm1/ > > > > > > - The -mm tree is now based on linux-next. > > > > I will occasionally pick up later versions of trees which are already > > in linux-next, to catch material which was added after Stephen last > > pulled that tree. That happened this time: git-net had a lot of driver > > changes which weren't in linux-next and which I wanted in > > 2.6.26-rc2-mm1. > > > > - A few more git trees were added: git-ubifs.patch, git-regulator.patch, > > git-logfs.patch, git-orion.patch. > > No good on my first attempt. Here is what I ran into: > > The printk timestamps have gone wild. I cannot paste a dmesg but here > is one line I wrote down: > [17180644.495790] Testing tracer ftrace: NMI watchdog ... I've seen reports like this against mainline, but I'm not sure that much has been done about it yet. > Which leads into the next problem: The kernel freezes after Testing > tracer ftrace. Then I rebooted with my special testing command line > "kernel /bzImage-2.6.26-rc2-mm1 root=/dev/sda2 rootfstype=reiser4 > rootflags=defaults,noatime i8042.nomux elevator=cfq resume=/dev/sda3 > panic=5 nmi_watchdog=2,panic debug idle=poll nohz=off" > > and I got the same freeze but then the NMI watchdog message. Which is > the third problem. > > Why did the NMI watchdog not panic and reboot the system? It detected > the lock and printed the message. It should have then panicked, waited > 5 seconds, and rebooted. > > System is a 64-bit Gentoo AMD-64 Compaq R3000 laptop. Compiler is GCC > 4.3. afaict this is all Ingo/Thomas stuff, so I'll add the ccs and run away :( > Config follows: Thanks.