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
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