From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262350AbVGFTs0 (ORCPT ); Wed, 6 Jul 2005 15:48:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262189AbVGFTpV (ORCPT ); Wed, 6 Jul 2005 15:45:21 -0400 Received: from mx2.elte.hu ([157.181.151.9]:19679 "EHLO mx2.elte.hu") by vger.kernel.org with ESMTP id S262285AbVGFOb7 (ORCPT ); Wed, 6 Jul 2005 10:31:59 -0400 Date: Wed, 6 Jul 2005 16:31:57 +0200 From: Ingo Molnar To: Serge Noiraud Cc: linux-kernel Subject: Re: PREEMPT_RT and mptfusion Message-ID: <20050706143157.GA22156@elte.hu> References: <1120633558.6225.64.camel@ibiza.btsn.frna.bull.fr> <20050706120848.GB16843@elte.hu> <1120653209.6225.96.camel@ibiza.btsn.frna.bull.fr> <1120659178.6225.99.camel@ibiza.btsn.frna.bull.fr> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1120659178.6225.99.camel@ibiza.btsn.frna.bull.fr> User-Agent: Mutt/1.4.2.1i X-ELTE-SpamVersion: MailScanner 4.31.6-itk1 (ELTE 1.2) SpamAssassin 2.63 ClamAV 0.73 X-ELTE-VirusStatus: clean X-ELTE-SpamCheck: no X-ELTE-SpamCheck-Details: score=-4.9, required 5.9, autolearn=not spam, BAYES_00 -4.90 X-ELTE-SpamLevel: X-ELTE-SpamScore: -4 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org * Serge Noiraud wrote: > > Yes it was 50-47. > > CONFIG_X86_UP_IOAPIC is not present in my .config > > CONFIG_PCI_MSI is set to yes. > > > > I'll try with CONFIG_PCI_MSI=n > It's OK for me. good job. good. But it would be nice to make it work with PCI_MSI=y too. Does PCI_MSI=y work if you apply the patch below? Ingo --- linux/arch/i386/kernel/io_apic.c.orig +++ linux/arch/i386/kernel/io_apic.c @@ -2136,11 +2136,7 @@ static void end_level_ioapic_vector (uns { int irq = vector_to_irq(vector); -#ifdef CONFIG_PREEMPT_HARDIRQS - if (!(irq_desc[vector].status & (IRQ_DISABLED | IRQ_INPROGRESS)) && - irq_desc[vector].action) -#endif - end_level_ioapic_irq(irq); + end_level_ioapic_irq(irq); } static void enable_level_ioapic_vector(unsigned int vector)