Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 13 Aug 2002 12:56:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 13 Aug 2002 12:56:28 -0400 Received: from pc2-cwma1-5-cust12.swa.cable.ntl.com ([80.5.121.12]:43256 "EHLO irongate.swansea.linux.org.uk") by vger.kernel.org with ESMTP id ; Tue, 13 Aug 2002 12:56:27 -0400 Subject: Re: [PATCH] NUMA-Q disable irqbalance From: Alan Cox To: Linus Torvalds Cc: "Martin J. Bligh" , linux-kernel In-Reply-To: References: Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Mailer: Ximian Evolution 1.0.3 (1.0.3-6) Date: 13 Aug 2002 17:57:46 +0100 Message-Id: <1029257866.20980.54.camel@irongate.swansea.linux.org.uk> Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 927 Lines: 19 On Tue, 2002-08-13 at 17:41, Linus Torvalds wrote: > Finally, exactly since IRQ balancing is practically required on P4-SMP, I > really don't think a CONFIG option works. It needs to be configured in on > any kernel that expects to use P4's in an SMP configuration. > > In other words, I think this needs to do a dynamic disable (with the > possible exception of a NUMA-Q machine, since that one is already a static > config option and won't have P4's in it). In the 2.4-ac tree it is a dynamic disable keyed off the mp 1.4 tables. That's how James Cleverdon (I think it was he) implemented the detection logic and mixed summit/sane-pc kernel build that seems to work well now - 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/