From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756934AbYENVeU (ORCPT ); Wed, 14 May 2008 17:34:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752743AbYENVeG (ORCPT ); Wed, 14 May 2008 17:34:06 -0400 Received: from keil-draco.com ([216.193.185.50]:44443 "EHLO mail.keil-draco.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753100AbYENVeE (ORCPT ); Wed, 14 May 2008 17:34:04 -0400 X-Greylist: delayed 1045 seconds by postgrey-1.27 at vger.kernel.org; Wed, 14 May 2008 17:34:04 EDT From: me To: Andrew Morton Subject: Re: 2.6.26-rc2-mm1 Date: Wed, 14 May 2008 17:14:41 -0400 User-Agent: KMail/1.9.9 Cc: Zan Lynx , linux-kernel@vger.kernel.org, Ingo Molnar , Thomas Gleixner References: <20080514010129.4f672378.akpm@linux-foundation.org> <1210798147.4234.5.camel@localhost> <20080514140032.83fc25b7.akpm@linux-foundation.org> In-Reply-To: <20080514140032.83fc25b7.akpm@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200805141714.42129.dhazelton@enter.net> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wednesday 14 May 2008 05:00:32 pm Andrew Morton wrote: > 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-rc > > >2/2.6.26-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. I've reported problems with -next and ftrace. The timestamps look very similar to what I've seen as well. I don't have those kernels available anymore - I decided to wipe my system and move to a distro where it's easier to test new kernels. However, it stands to reason that it isn't ftrace actually causing the problem. > > 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. That is quite similar... I'm on a Core2Duo (Dell Inspiron 1420 laptop) and was seeing the problems with GCC4.3 and a pure 64bit userland. DRH > afaict this is all Ingo/Thomas stuff, so I'll add the ccs and run away :( > > > Config follows: > > Thanks. > -- > 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/ -- Dialup is like pissing through a pipette. Slow and excruciatingly painful.