> I've been having interrupt problems. 2.6.12 worked fine, but
> soon after it got broken and was still broken just now that I
> checked git version.
>
> Interrupts get somehow misrouted.
>
> Here is a part from the syslog showing the problem:
>
> Jul 3 13:17:09 kohtala kernel: USB Universal Host Controller
> Interface driver v2.3 Jul 3 13:17:09 kohtala kernel: <7>Pin
> 2-12 already programmed Jul 3 13:17:09 kohtala kernel: ACPI:
> PCI Interrupt 0000:00:11.2[D] -> GSI 12 (level, low) -> IRQ
> 20 Jul 3 13:17:09 kohtala kernel: PCI: Via IRQ fixup for
> 0000:00:11.2, from 12 to 4 Jul 3 13:17:09 kohtala kernel:
> uhci_hcd 0000:00:11.2: VIA Technologies, Inc. VT82xxxxx UHCI
> USB 1.1 Controller Jul 3 13:17:09 kohtala kernel: uhci_hcd
> 0000:00:11.2: new USB bus registered, assigned bus number 4
> Jul 3 13:17:09 kohtala kernel: uhci_hcd 0000:00:11.2: irq
> 20, io base 0x0000cc00 Jul 3 13:17:09 kohtala kernel: hub
> 4-0:1.0: USB hub found Jul 3 13:17:09 kohtala kernel: hub
> 4-0:1.0: 2 ports detected Jul 3 13:17:09 kohtala kernel: usb
> 3-1: new low speed USB device using ohci_hcd and address 2
> Jul 3 13:17:09 kohtala kernel: irq 20: nobody cared (try
> booting with the "irqpoll" option)
>
> Working kernel uses IRQ 12.
>
Hi Marko,
Have you tried booting with "pci=noacpi" boot option?
Thanks,
--Natalie
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