From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: 2.6.21-rc3-git4 ata1.00: qc timeout (cmd 0xef) (crashdump kernel) Date: Tue, 13 Mar 2007 01:47:01 +0900 Message-ID: <45F58405.1050204@gmail.com> References: <6bffcb0e0703090857r14eda34bj92f3fd1d0008edb8@mail.gmail.com> <45F51218.9030907@gmail.com> <45F5805A.5080509@googlemail.com> <45F581B9.9020005@gmail.com> <1173718065.13341.96.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Michal Piotrowski , Jeff Garzik , linux-ide@vger.kernel.org, Ingo Molnar , Bartlomiej Zolnierkiewicz , Stephen Hemminger , netdev@vger.kernel.org, Alan Cox To: tglx@linutronix.de Return-path: Received: from wx-out-0506.google.com ([66.249.82.237]:12135 "EHLO wx-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030632AbXCLQrC (ORCPT ); Mon, 12 Mar 2007 12:47:02 -0400 Received: by wx-out-0506.google.com with SMTP id h31so1729983wxd for ; Mon, 12 Mar 2007 09:47:02 -0700 (PDT) In-Reply-To: <1173718065.13341.96.camel@localhost.localdomain> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Thomas Gleixner wrote: > On Tue, 2007-03-13 at 01:37 +0900, Tejun Heo wrote: >> Michal Piotrowski wrote: >>> Calling initcall 0xc19154d8: piix_ide_init+0x0/0xbb() >>> Calling initcall 0xc19155b6: generic_ide_init+0x0/0x16() >>> Calling initcall 0xc191572e: ide_init+0x0/0x81() >>> Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2 >>> ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx >>> ICH5: IDE controller at PCI slot 0000:00:1f.1 >>> irq 5: nobody cared (try booting with the "irqpoll" option) >>> [] show_trace_log_lvl+0x1a/0x2f >>> [] show_trace+0x12/0x14 >>> [] dump_stack+0x16/0x18 >>> [] __report_bad_irq+0x39/0x79 >>> [] note_interrupt+0x18f/0x1c8 >>> [] handle_level_irq+0x95/0xcb >>> [] do_IRQ+0xb4/0xe0 >>> ======================= >>> handlers: >>> [] (skge_intr+0x0/0x3ff) >>> Disabling IRQ #5 >>> ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 5 >>> ACPI: PCI Interrupt 0000:00:1f.1[A] -> Link [LNKC] -> GSI 5 (level, low) -> IRQ 5 >>> ICH5: chipset revision 2 >>> ICH5: not 100% native mode: will probe irqs later >>> ide0: BM-DMA at 0xfc00-0xfc07, BIOS settings: hda:DMA, hdb:DMA >>> ide1: BM-DMA at 0xfc08-0xfc0f, BIOS settings: hdc:pio, hdd:DMA >>> >>> Is this an IDE or skge bug? >> It seems skge's. skge is screaming and kernel shuts down IRQ 5. >> ata_piix is unfortunately sharing the IRQ, so its IRQ doesn't get >> serviced and commands time out. > > I doubt that. On my box the interrupt is solely used by ata_piix. Ah right. ata_piix could be screaming when the skge requested IRQ#5, but ata_piix is in native mode meaning that the PCI device is probably in disabled state when skge requests IRQ#5. Michal, can you please test the machine with skge disabled? If it's an on board device, you can probably disable it in the BIOS configuration menu. Thanks. -- tejun