Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S268985AbUIXR5b (ORCPT ); Fri, 24 Sep 2004 13:57:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S268991AbUIXR5V (ORCPT ); Fri, 24 Sep 2004 13:57:21 -0400 Received: from viper.oldcity.dca.net ([216.158.38.4]:9641 "HELO viper.oldcity.dca.net") by vger.kernel.org with SMTP id S268985AbUIXR5K (ORCPT ); Fri, 24 Sep 2004 13:57:10 -0400 Subject: Re: ArcNet and 2.6.8.1 From: Lee Revell To: Esben Nielsen Cc: "David S. Miller" , yoshfuji@linux-ipv6.org, linux-net@vger.kernel.org, linux-kernel In-Reply-To: References: Content-Type: text/plain Message-Id: <1096048629.10831.4.camel@krustophenia.net> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 Date: Fri, 24 Sep 2004 13:57:09 -0400 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 775 Lines: 19 On Thu, 2004-09-23 at 18:52, Esben Nielsen wrote: > Oh well, I'll try to see if I can get time to make it stable with > preemption on. Is preemption safe enough to ensure SMP safe or would I > have to test on at least a hyperthreading machine as well? > In theory preempt safe should be SMP safe, but in practice it doesn't always work this way. You need to test on an actual SMP system. I am not sure that HT == SMP for your purposes either. ISTR some cases with the VP patches where it broke on HT but not "real" SMP. Lee - 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/