From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Edwards Subject: Re: IRQ "nobody cared...Disabling" errors on linux-3.0.10-rt27 on SMP AMD64 system Date: Tue, 06 Dec 2011 15:51:00 +1300 Message-ID: <4EDD8314.3060904@cedwards.geek.nz> References: <4ECCE979.5080109@cedwards.geek.nz> <1322056363.20742.45.camel@frodo> <4ECD7DCC.3000505@ripples.dyndns.org> <1322691017.24563.9.camel@frodo> <4ED9EEB2.6070401@ripples.dyndns.org> <4EDAAEFD.9060209@ripples.dyndns.org> <4EDCC978.3060401@cedwards.geek.nz> <20111205181450.GK7834@aftab> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Borislav Petkov , Steven Rostedt , linux-rt-users , Borislav Petkov To: Thomas Gleixner Return-path: Received: from mx1.kinect.co.nz ([202.74.33.69]:40218 "EHLO kinect.co.nz" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932842Ab1LFCwY (ORCPT ); Mon, 5 Dec 2011 21:52:24 -0500 In-Reply-To: Sender: linux-rt-users-owner@vger.kernel.org List-ID: On 06/12/11 10:02, Thomas Gleixner wrote: > On Mon, 5 Dec 2011, Borislav Petkov wrote: >> On Mon, Dec 05, 2011 at 05:56:01PM +0100, Thomas Gleixner wrote: >> >>> You could try the following patch. Be aware that it might not work at >>> all, but I don't expect that you need a fire extinguisher :) No smoke or flames noted. :) And that appears to have solved the problem. Firewire audio works, and even after running NetPIPE a couple of times over that Ethernet interface, there's only a handful of interrupts on the Firewire IRQ (as seems to be normal): $ cat /proc/interrupts CPU0 CPU1 0: 134 0 IO-APIC-edge timer 1: 0 2 IO-APIC-edge i8042 3: 0 2 IO-APIC-edge 4: 0 2 IO-APIC-edge 6: 0 5 IO-APIC-edge floppy 7: 1 0 IO-APIC-edge 8: 0 0 IO-APIC-edge rtc0 9: 0 0 IO-APIC-fasteoi acpi 12: 0 4 IO-APIC-edge i8042 14: 0 0 IO-APIC-edge pata_amd 15: 0 0 IO-APIC-edge pata_amd 17: 9 120 IO-APIC-fasteoi firewire_ohci 18: 2645 2932 IO-APIC-fasteoi radeon 19: 0 46 IO-APIC-fasteoi snd_gina24 20: 2590 2357 IO-APIC-fasteoi ohci_hcd:usb2 21: 234 9128 IO-APIC-fasteoi ehci_hcd:usb1, eth0 22: 1346 10720 IO-APIC-fasteoi sata_nv, ohci_hcd:usb3 26: 471010 475803 IO-APIC-fasteoi eth1 27: 0 0 IO-APIC-fasteoi sata_sil NMI: 7 7 Non-maskable interrupts LOC: 111328 106458 Local timer interrupts SPU: 0 0 Spurious interrupts PMI: 7 7 Performance monitoring interrupts IWI: 0 0 IRQ work interrupts RES: 27286 7746 Rescheduling interrupts CAL: 1051 5180 Function call interrupts TLB: 224 229 TLB shootdowns TRM: 0 0 Thermal event interrupts THR: 0 0 Threshold APIC interrupts MCE: 0 0 Machine check exceptions MCP: 62 62 Machine check polls ERR: 1 MIS: 0 Confirming kernel version and options: [ 0.000000] Linux version 3.2.0-rc4-rt5 (root@babelfish) (gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5) ) #2 SMP PREEMPT RT Tue Dec 6 14:32:44 NZDT 2011 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz-3.2.0-rc4-rt5 root=UUID=ca21e0bf-b7f8-45c3-8fc9-066c4dd6052e ro quiet splash I'll try reinstalling my other expansion cards and check that all remains well. Thank you very much for the help. Einfach Klasse! -- Chris