Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932116AbWBHK0h (ORCPT ); Wed, 8 Feb 2006 05:26:37 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932482AbWBHK0h (ORCPT ); Wed, 8 Feb 2006 05:26:37 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:46812 "EHLO mx2.mail.elte.hu") by vger.kernel.org with ESMTP id S932116AbWBHK0g (ORCPT ); Wed, 8 Feb 2006 05:26:36 -0500 Date: Wed, 8 Feb 2006 11:25:00 +0100 From: Ingo Molnar To: Steven Rostedt Cc: =?iso-8859-1?Q?S=E9bastien_Dugu=E9?= , "linux-kernel@vger.kernel.org" Subject: Re: preempt-rt, NUMA and strange latency traces Message-ID: <20060208102500.GA10942@elte.hu> References: <1139311689.19708.36.camel@frecb000686> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.1i X-ELTE-SpamScore: -2.2 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-2.2 required=5.9 tests=ALL_TRUSTED,AWL autolearn=no SpamAssassin version=3.0.3 -2.8 ALL_TRUSTED Did not pass through any untrusted hosts 0.6 AWL AWL: From: address is in the auto white-list X-ELTE-VirusStatus: clean Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 872 Lines: 22 * Steven Rostedt wrote: > > I've been experimenting with 2.6.15-rt16 on a dual 2.8GHz Xeon box > > with quite good results and decided to make a run on a NUMA dual node > > IBM x440 (8 1.4GHz Xeon, 28GB ram). > > > > However, the kernel crashes early when creating the slabs. Does the > > current preempt-rt patchset supports NUMA machines or has support > > been disabled until things settle down? > > Yeah, currently the -rt patch doesn't work well with NUMA. FYI, i've got a new port of upstream slab.c to -rt, which should work on NUMA too. It'll be in -rt17 (later today or tomorrow). Ingo - 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/