From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750734AbVKMUNU (ORCPT ); Sun, 13 Nov 2005 15:13:20 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750760AbVKMUNU (ORCPT ); Sun, 13 Nov 2005 15:13:20 -0500 Received: from omx3-ext.sgi.com ([192.48.171.20]:57305 "EHLO omx3.sgi.com") by vger.kernel.org with ESMTP id S1750734AbVKMUNU (ORCPT ); Sun, 13 Nov 2005 15:13:20 -0500 Date: Sun, 13 Nov 2005 12:13:09 -0800 From: Paul Jackson To: Ingo Molnar Cc: linux-kernel@vger.kernel.org Subject: Re: ia64 SN2 - migration costs: 1) nearly zero 2) BUG 3) repeated Message-Id: <20051113121309.226543ca.pj@sgi.com> In-Reply-To: <20051113071716.GA31075@elte.hu> References: <20051112135410.3eef5641.pj@sgi.com> <20051112144949.3b331aa1.pj@sgi.com> <20051113071716.GA31075@elte.hu> Organization: SGI X-Mailer: Sylpheed version 2.0.0beta5 (GTK+ 2.4.9; i686-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 X-Mailing-List: linux-kernel@vger.kernel.org Ingo wrote: > Could you try > migration_debug=3 with the .config that failed before? (if it doesnt > fail, could you re-check it still fails with migration_debug=2?) I've tried these two, and with no migration_debug, as close as I could remember to the original case with the bad (zeros) table. It never failed again. Gremlins, I tell you. Gremlins. Looks like the "BUG: using smp_processor_id() in preemptible" is the only actionable item in my report. Sorry. -- I won't rest till it's the best ... Programmer, Linux Scalability Paul Jackson 1.925.600.0401