From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264479AbUG2MV7 (ORCPT ); Thu, 29 Jul 2004 08:21:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264444AbUG2MV7 (ORCPT ); Thu, 29 Jul 2004 08:21:59 -0400 Received: from mx1.redhat.com ([66.187.233.31]:49641 "EHLO mx1.redhat.com") by vger.kernel.org with ESMTP id S264479AbUG2MVy (ORCPT ); Thu, 29 Jul 2004 08:21:54 -0400 Date: Thu, 29 Jul 2004 14:21:09 +0200 From: Arjan van de Ven To: Marcelo Tosatti Cc: Chris Caputo , linux-kernel@vger.kernel.org Subject: Re: inode_unused list corruption in 2.4.26 - spin_lock problem? Message-ID: <20040729122107.GA1024@devserv.devel.redhat.com> References: <20040729002535.GA5145@logos.cnet> <20040729075429.GA15700@devserv.devel.redhat.com> <20040729105755.GA6897@logos.cnet> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="6c2NcOVqGQ03X4Wi" Content-Disposition: inline In-Reply-To: <20040729105755.GA6897@logos.cnet> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --6c2NcOVqGQ03X4Wi Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Thu, Jul 29, 2004 at 07:57:55AM -0300, Marcelo Tosatti wrote: > On Thu, Jul 29, 2004 at 09:54:29AM +0200, Arjan van de Ven wrote: > > On Wed, Jul 28, 2004 at 11:27:41PM -0700, Chris Caputo wrote: > > > On Wed, 28 Jul 2004, Marcelo Tosatti wrote: > > > > Changing the affinity writes new values to the IOAPIC registers, I can't see > > > > how that could interfere with the atomicity of a spinlock operation. I dont > > > > understand why you think irqbalance could affect anything. > > > > > > Because when I stop running irqbalance the crashes no longer happen. > > > > what is the irq distribution when you do that? > > Can you run irqbalance for a bit to make sure there's a static distribution > > of irq's and then disable it and see if it survives ? > > Chris, Yes I'm also running irqbalance. > > Arjan, what is an easy way for me to make irqbalance change the affinity > as crazy on the SMP 8way box, just for a test? there is a sleep(10 seconds) in the code, if you change that to something really short and then cause irq burst rates on different devices... --6c2NcOVqGQ03X4Wi Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQFBCOuzxULwo51rQBIRAuzHAJwKHgNOnH7/k+KxmGUYzyGgy/8ImACgmS3V /3VfAUkW7G+z6DaW9A9ui60= =2a6J -----END PGP SIGNATURE----- --6c2NcOVqGQ03X4Wi--