Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262642AbTEFMDu (ORCPT ); Tue, 6 May 2003 08:03:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262645AbTEFMDu (ORCPT ); Tue, 6 May 2003 08:03:50 -0400 Received: from pc2-cwma1-4-cust86.swan.cable.ntl.com ([213.105.254.86]:60838 "EHLO lxorguk.ukuu.org.uk") by vger.kernel.org with ESMTP id S262642AbTEFMDt (ORCPT ); Tue, 6 May 2003 08:03:49 -0400 Subject: Re: 2.5.68-mmX: Drowning in irq 7: nobody cared! From: Alan Cox To: Zwane Mwaikambo Cc: Andrew Morton , Shane Shrybman , Linux Kernel Mailing List In-Reply-To: References: <1052141029.2527.27.camel@mars.goatskin.org> <20030505143006.29c0301a.akpm@digeo.com> <1052213733.28797.1.camel@dhcp22.swansea.linux.org.uk> Content-Type: text/plain Content-Transfer-Encoding: 7bit Organization: Message-Id: <1052219863.28797.30.camel@dhcp22.swansea.linux.org.uk> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.2.2 (1.2.2-5) Date: 06 May 2003 12:17:43 +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 658 Lines: 15 On Maw, 2003-05-06 at 11:41, Zwane Mwaikambo wrote: > > For anything where you get pairs of close IRQ's > > Shouldn't this also be observed more easily on P4/xAPIC since you can have > a pending vector in the IRR and ISR whilst the core processes one. I don't know enough about the pending vector stuff. For the older APIC the IRQ's go via a suprisingly slow seperate APIC bus (4 wire if I remember rightly). - 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/