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?
Thanks.
