From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759023Ab1LOR4o (ORCPT ); Thu, 15 Dec 2011 12:56:44 -0500 Received: from mail-ww0-f44.google.com ([74.125.82.44]:65279 "EHLO mail-ww0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751544Ab1LOR4m (ORCPT ); Thu, 15 Dec 2011 12:56:42 -0500 Message-ID: <4EEA34D7.9030109@gmail.com> Date: Thu, 15 Dec 2011 18:56:39 +0100 From: Julian Sikorski User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:8.0) Gecko/20111115 Thunderbird/8.0 MIME-Version: 1.0 To: Clemens Ladisch CC: linux1394-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org Subject: Re: bug report: irq 19: nobody cared (try booting with the "irqpoll" option) References: <4EEA0485.4050105@gmail.com> <4EEA0521.2030502@gmail.com> <4EEA18A8.5030603@ladisch.de> <4EEA1A81.6030807@gmail.com> <4EEA331F.1060201@ladisch.de> In-Reply-To: <4EEA331F.1060201@ladisch.de> X-Enigmail-Version: 1.3.4 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org W dniu 15.12.2011 18:49, Clemens Ladisch pisze: > Julian Sikorski wrote: >> W dniu 15.12.2011 16:56, Clemens Ladisch pisze: >>> Julian, try disabling DMAR (probably called IOMMU or something related >>> to virtualization) in the BIOS. >> >> There is no such option or anything even remotely related in the BIOS > > Then add the kernel parameter intel_iommu=off to the boot loader. > > > Regards, > Clemens This did not work (I have nvidia.ko loaded now, but as I have shown before the issue can be reproduced without it too): $ dmesg | grep mmu [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz-3.1.5-2.fc16.x86_64 root=/dev/mapper/vg_snowball2-lv_root ro rd.lvm.lv=vg_snowball2/lv_swap rd.md=0 rd.dm=0 quiet SYSFONT=latarcyrheb-sun16 rhgb rd.lvm.lv=vg_snowball2/lv_root rd.luks=0 LANG=pl_PL.UTF-8 KEYTABLE=pl2 nouveau.modeset=0 rd.driver.blacklist=nouveau intel_iommu=off [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz-3.1.5-2.fc16.x86_64 root=/dev/mapper/vg_snowball2-lv_root ro rd.lvm.lv=vg_snowball2/lv_swap rd.md=0 rd.dm=0 quiet SYSFONT=latarcyrheb-sun16 rhgb rd.lvm.lv=vg_snowball2/lv_root rd.luks=0 LANG=pl_PL.UTF-8 KEYTABLE=pl2 nouveau.modeset=0 rd.driver.blacklist=nouveau intel_iommu=off irq 19: nobody cared (try booting with the "irqpoll" option) Pid: 0, comm: swapper Tainted: P 3.1.5-2.fc16.x86_64 #1 Call Trace: [] __report_bad_irq+0x3d/0xe0 [] note_interrupt+0x16d/0x220 [] ? native_sched_clock+0x13/0x80 [] handle_irq_event_percpu+0xa9/0x220 [] handle_irq_event+0x44/0x70 [] handle_fasteoi_irq+0x5f/0xf0 [] handle_irq+0x49/0xa0 [] do_IRQ+0x5a/0xe0 [] common_interrupt+0x6e/0x6e [] ? intel_idle+0xcb/0x120 [] ? intel_idle+0xad/0x120 [] cpuidle_idle_call+0xc6/0x280 [] cpu_idle+0xc5/0x120 [] rest_init+0x72/0x74 [] start_kernel+0x3b5/0x3c0 [] x86_64_start_reservations+0x132/0x136 [] ? early_idt_handlers+0x140/0x140 [] x86_64_start_kernel+0x102/0x111 Julian