Re: Problem - disabling IRQ #20 and others

From: Andrew Morton
Date: Thu Aug 02 2007 - 04:49:31 EST


On Wed, 1 Aug 2007 19:41:31 +0530 "debian developer" <debiandev@xxxxxxxxx> wrote:

> On 8/1/07, Andev Debi <andev.debi@xxxxxxxxx> wrote:
> > Hello,
> > Im getting the following error while booting the kernel 2.6.22.1-cfs
> >
> > Aug 1 09:14:17 localhost kernel: [ 63.106550] irq 20: nobody cared (try
> > booting with the "irqpoll" option)
> > Aug 1 09:14:17 localhost kernel: [ 63.106574] [__report_bad_irq+36/128]
> > __report_bad_irq+0x24/0x80
> > Aug 1 09:14:17 localhost kernel: [ 63.106596] [note_interrupt+485/560]
> > note_interrupt+0x1e5/0x230
> > Aug 1 09:14:17 localhost kernel: [ 63.106619] [handle_IRQ_event+37/80]
> > handle_IRQ_event+0x25/0x50
> > Aug 1 09:14:17 localhost kernel: [ 63.106634]
> > [handle_fasteoi_irq+141/160] handle_fasteoi_irq+0x8d/0xa0
> > Aug 1 09:14:17 localhost kernel: [ 63.106643] [do_IRQ+62/128]
> > do_IRQ+0x3e/0x80
> > Aug 1 09:14:17 localhost kernel: [ 63.106665] [common_interrupt+35/40]
> > common_interrupt+0x23/0x28
> > Aug 1 09:14:17 localhost kernel: [ 63.106674] [default_idle+0/64]
> > default_idle+0x0/0x40
> > Aug 1 09:14:17 localhost kernel: [ 63.106696] [default_idle+42/64]
> > default_idle+0x2a/0x40
> > Aug 1 09:14:17 localhost kernel: [ 63.106704] [cpu_idle+72/112]
> > cpu_idle+0x48/0x70
> > Aug 1 09:14:17 localhost kernel: [ 63.106707] [start_kernel+559/704]
> > start_kernel+0x22f/0x2c0
> > Aug 1 09:14:17 localhost kernel: [ 63.106715] [unknown_bootoption+0/592]
> > unknown_bootoption+0x0/0x250
> > Aug 1 09:14:17 localhost kernel: [ 63.106735] =======================
> > Aug 1 09:14:17 localhost kernel: [ 63.106736] handlers:
> > Aug 1 09:14:17 localhost kernel: [ 63.106738] [<dcc13080>]
> > (via_driver_irq_handler+0x0/0x1b0 [via])
> > Aug 1 09:14:17 localhost kernel: [ 63.106747] Disabling IRQ #20
> >
>

Please fix the wordwrapping before sending any more stuff - it's truly awful.

Could be a bug in the via driver, but it's more likely an
acpi/pci/platform/bios thing.

Did any previous kernels work OK? If so, which?
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