From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261965AbVGXOQH (ORCPT ); Sun, 24 Jul 2005 10:16:07 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261967AbVGXOQH (ORCPT ); Sun, 24 Jul 2005 10:16:07 -0400 Received: from zproxy.gmail.com ([64.233.162.197]:65319 "EHLO zproxy.gmail.com") by vger.kernel.org with ESMTP id S261965AbVGXOQF convert rfc822-to-8bit (ORCPT ); Sun, 24 Jul 2005 10:16:05 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=XWp/nbAoRSwo9Se64d2S9ILfdrUd254uzAHYjJPcGmuZvYHqpEV6+MCo+Ad365yddFElImRNlaeaEpuGdwkHNpRSwogqNE+G3zzTigtT7Rf6ochK9dxWOJ3RjN+Ja0Oe1aHZxGMvEbwnzDNsInG81ICWKvqjMMDg3WPV9dKrems= Message-ID: <9a87484905072407164f0e0eb5@mail.gmail.com> Date: Sun, 24 Jul 2005 16:16:05 +0200 From: Jesper Juhl Reply-To: Jesper Juhl To: Pierre Ossman Subject: Re: IRQ routing problem in 2.6.10-rc2 Cc: LKML , Greg Kroah-Hartman In-Reply-To: <42E395F6.8070301@drzeus.cx> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Content-Disposition: inline References: <42E395F6.8070301@drzeus.cx> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On 7/24/05, Pierre Ossman wrote: > Sorry about reporting this error so late but the machine in question had > gone some time without upgrades. > > The problem I'm seeing is that IRQs stop working for one of the IRQ > slots on the machine. It's only that slot, not the entire IRQ, since the > two slots (it's a small machine) both get routed to IRQ 10. > > I've included dmesg from 2.6.10-rc1 (which works) and 2.6.10-rc2 (which > doesn't). > > I've also tried reverting the patches that modifies > arch/i386/kernel/irq.c and arch/i386/pci/irq.c but it didn't solve the > problem. So now I need some more input on which patches to try. > [snip] > > Linux version 2.6.10-rc2 (root@natasha.craffe.se) (gcc version 3.3.3 20040412 (Red Hat Linux 3.3.3-7)) #8 Wed Jul 20 02:57:15 CEST 2005 [snip] > ACPI: Using PIC for interrupt routing [snip] > PCI: Using ACPI for IRQ routing > ** PCI interrupts are no longer routed automatically. If this > ** causes a device to stop working, it is probably because the > ** driver failed to call pci_enable_device(). As a temporary > ** workaround, the "pci=routeirq" argument restores the old > ** behavior. If this argument makes the device work again, > ** please email the output of "lspci" to bjorn.helgaas@hp.com > ** so I can fix the driver. [snip] Have you tried the suggestion given "... As a temporary workaround, the "pci=routeirq" argument..." ? You could also try the pci=noacpi boot option to see if that changes anything. Also, that's a fairly old kernel you have there, could you try 2.6.13-rc3, 2.6.13-rc3-git6 or 2.6.13-rc3-mm1 ? -- Jesper Juhl Don't top-post http://www.catb.org/~esr/jargon/html/T/top-post.html Plain text mails only, please http://www.expita.com/nomime.html