From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bjorn Helgaas Subject: Re: [Bug 14159] AIC79xx is not working properly with an attached scsi tape since 2.6.29 Date: Mon, 14 Sep 2009 11:24:38 -0600 Message-ID: <200909141124.39379.bjorn.helgaas@hp.com> References: <200909140718.n8E7ImIE010519@demeter.kernel.org> <1252938312.8584.37.camel@mulgrave.site> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1252938312.8584.37.camel@mulgrave.site> Content-Disposition: inline Sender: linux-acpi-owner@vger.kernel.org To: James Bottomley Cc: bugzilla-daemon@bugzilla.kernel.org, linux-scsi@vger.kernel.org, linux-acpi@vger.kernel.org, Stefan Assmann List-Id: linux-scsi@vger.kernel.org On Monday 14 September 2009 08:25:12 am James Bottomley wrote: > > --- Comment #3 from g.giorgetti@teamsystem.com 2009-09-14 07:18:46 --- > > today after building and installing the latest stable kernel 2.6.31 I can tell > > you that the problem is still there. > > > > Here is the machine's /proc/interrups > > > > CPU0 CPU1 > > 0: 44 0 IO-APIC-edge timer > > 1: 0 2 IO-APIC-edge i8042 > > 3: 0 0 IO-APIC-fasteoi ehci_hcd:usb2, ohci_hcd:usb5, > > ohci_hcd:usb6 > > 4: 0 2 IO-APIC-edge > > 8: 0 1 IO-APIC-edge rtc0 > > 9: 0 0 IO-APIC-fasteoi acpi, sata_svw > > 12: 0 4 IO-APIC-edge i8042 > > 14: 63 92631 IO-APIC-edge ide0 > > 19: 0 0 IO-APIC-fasteoi aic79xx > > So this is the problem, as predicted: the card isn't getting interrupts. > This would strongly suggest an ACPI problem. Can you try booting with > pci=noacpi? You might also try "pci=noioapicquirk". Commit bbe194433bae [1] fiddles with boot interrupts on AMD 813x devices, which you seem to have. Bjorn [1] http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=bbe194433baeadc953f49e3795b41ffffc5486dd