Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935198AbXJPSab (ORCPT ); Tue, 16 Oct 2007 14:30:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1760378AbXJPSaS (ORCPT ); Tue, 16 Oct 2007 14:30:18 -0400 Received: from e1.ny.us.ibm.com ([32.97.182.141]:58062 "EHLO e1.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750791AbXJPSaP (ORCPT ); Tue, 16 Oct 2007 14:30:15 -0400 Date: Wed, 17 Oct 2007 00:12:04 +0530 From: Srivatsa Vaddagiri To: Andy Whitcroft Cc: Ingo Molnar , Kamalesh Babulal , LKML , torvalds@linux-foundation.org, Andrew Morton , Dmitry Adamushko , Peter Zijlstra , Dhaval Giani Subject: Re: [BUG] 2.6.23-git8 kernel oops at __rb_rotate_left+0x7/0x70 Message-ID: <20071016184204.GA19219@linux.vnet.ibm.com> Reply-To: vatsa@linux.vnet.ibm.com References: <47144B4F.3050108@linux.vnet.ibm.com> <20071016091012.GB24341@elte.hu> <20071016094631.GA10649@elte.hu> <20071016180037.GC5670@shadowen.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20071016180037.GC5670@shadowen.org> User-Agent: Mutt/1.5.11 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 946 Lines: 27 On Tue, Oct 16, 2007 at 07:00:37PM +0100, Andy Whitcroft wrote: > > ah, this is likely with the recent scheduler commits included as well, > > right? > > > > if it's reproducable, could you try with group scheduling disabled, i.e. > > with: > > > > # CONFIG_FAIR_GROUP_SCHED is not set > > > > as that would be the main suspect for such type of a crash. > > Ok, preliminary results with this disabled seem to get us past > kernbench. I am rerunning with it enabled to confirm it blammo's. Andy, I have got details from Kamalesh on the machine where this is recreatable (we couldn't recreate on other machines). Will start looking at this tomorrow morning first thing .. -- Regards, vatsa - 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/