According to Mitch Marantz: While burning my CPU.
>
> I've just installed an Asus P5A-B Super 7 motherboard (Ali Aladdin V
> AGPset chipset). Everything works except for my modem. The new board
> seems to be generating an IRQ conflict.
>
> At first I booted up with my regular 2.0.33 kernel, and got the
> following error message on bootup:
>
> pcibios_init : BIOS32 Service Directory structure at 0x000f9b80
> pcibios_init : BIOS32 Service Directory entry at 0xf0530
> pcibios_init : PCI BIOS revision 2.10 entry at 0xf0560
> Probing PCI hardware.
> Warning : Unknown PCI device (10b9:1541). Please read include/linux/pci.h
> Warning : Unknown PCI device (10b9:5243). Please read include/linux/pci.h
> Warning : Unknown PCI device (10b9:7101). Please read include/linux/pci.h
> Warning : Unknown PCI device (10b9:1533). Please read include/linux/pci.h
> Warning : Unknown PCI device (10b9:5229). Please read include/linux/pci.h
> Calibrating delay loop.. ok - 663.55 BogoMIPS
>
> I next tried 2.0.36, which seemed to recognize the board.
>
> pcibios_init : BIOS32 Service Directory structure at 0x000f9b80
> pcibios_init : BIOS32 Service Directory entry at 0xf0530
> pcibios_init : PCI BIOS revision 2.10 entry at 0xf0560
> Probing PCI hardware.
> Calibrating delay loop.. ok - 663.55 BogoMIPS
>
> However, my modem (which I would set to IRQ 9 at bootup using setserial in
> my etc/rc.d/rc.local file) was hanging up when I tried to use it, and
> proc/interrupts was showing I now had a conflict on IRQ 9. IRQ 9 was the
> only free IRQ before the new motherboard, and now it seems to be gone,
> whether I'm using 2.0.33 or 2.0.36.
>
> How can I free up an IRQ?
To find out what pci devices are using irq's you can do;
'cat /proc/pci'
Then
'cat /proc/interrupts'
will give you a full list of irq's which are in use.
'procinfo -f' will show you intterupt usage as is.
At bootime use setseriel or the lilo append commands to change confiuration
of irq's.
Hope this is of help.
>
> Thanks.
>
>
--
Regards Richard.
[EMAIL PROTECTED]
Merry Xmas to all, and may all your troubles be small (ones).
