linux-kernel - Re: Problem - disabling IRQ #20 and others

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Message-Id: <20070802014819.4760b06a.akpm@linux-foundation.org>
Date:	Thu, 2 Aug 2007 01:48:19 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	"debian developer" <debiandev@...il.com>
Cc:	"Andev Debi" <andev.debi@...il.com>, linux-kernel@...r.kernel.org
Subject: Re: Problem - disabling IRQ #20 and others

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

> On 8/1/07, Andev Debi <andev.debi@...il.com> 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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