From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262779AbVG2Tzd (ORCPT ); Fri, 29 Jul 2005 15:55:33 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262775AbVG2TzX (ORCPT ); Fri, 29 Jul 2005 15:55:23 -0400 Received: from smtp.osdl.org ([65.172.181.4]:18098 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S262779AbVG2TxE (ORCPT ); Fri, 29 Jul 2005 15:53:04 -0400 Date: Fri, 29 Jul 2005 12:51:35 -0700 From: Andrew Morton To: Cal Peake Cc: torvalds@osdl.org, perex@suse.cz, linux-kernel@vger.kernel.org, rostedt@goodmis.org Subject: Re: Linux 2.6.13-rc4 (snd-cs46xx) Message-Id: <20050729125135.19205830.akpm@osdl.org> In-Reply-To: References: <20050728213543.6264ca60.akpm@osdl.org> X-Mailer: Sylpheed version 1.0.4 (GTK+ 1.2.10; i386-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Cal Peake wrote: > > On Thu, 28 Jul 2005, Andrew Morton wrote: > > > The procfs inode IDR tree is scrogged. I'd be suspecting a random memory > > scribble. I'd suggest that you enable CONFIG_DEBUG_SLAB, > > CONFIG_DEBUG_PAGEALLOC, CONFIG_DEBUG_everything_else and retest. > > > > If that doesn't show anything, try eliminating stuff from your kernel > > config. > > > > If it _is_ a scribble then there's a good chance that changing the config > > will simply make it disappear, or will make it manifest in different ways. > > Thanks Andrew! Indeed your suspicions are correct. Adding in all the > debugging moved the problem around, it now shows itself when probing > parport. Upon further investigation reverting the commit below seems to > have nixed the problem. > > [PATCH] speed up on find_first_bit for i386 (let compiler do the work) Thanks a million for that.