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Date: Mon, 31 Jan 2005 02:41:48 -0500
From: William Park <opengeometry@yahoo.ca>
To: linux-kernel@vger.kernel.org
Subject: Re: Disabling IRQ #xx, because nobody cared!
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On Sat, Jan 29, 2005 at 04:32:12AM +0000, William Park wrote:
> I'm runing 2.6.10 SMP.  I usually use APM, but I decided to try ACPI.
> On my machine, USB (integrated) and Audio (PCI card) shares IRQ:
...
> After a while, I get
> 
>     irq 185: nobody cared!
>      [<c01339e2>] __report_bad_irq+0x22/0x90
>      [<c0133ad8>] note_interrupt+0x58/0x90
>      [<c0133578>] __do_IRQ+0x128/0x130
>      [<c0104eba>] do_IRQ+0x1a/0x30
>      [<c010370a>] common_interrupt+0x1a/0x20
>      [<c0100690>] default_idle+0x0/0x40
>      [<c01006ba>] default_idle+0x2a/0x40
>      [<c0100760>] cpu_idle+0x40/0x70
>     handlers:
>     [<e086e000>] (snd_audiopci_interrupt+0x0/0xc0 [snd_ens1371])
>     Disabling IRQ #185
> 
> Then, after some more time, I get
> 
>     irq 11: nobody cared!
>      [<c01339e2>] __report_bad_irq+0x22/0x90
>      [<c0133ad8>] note_interrupt+0x58/0x90
>      [<c0133578>] __do_IRQ+0x128/0x130
>      [<c0104eba>] do_IRQ+0x1a/0x30
>      [<c010370a>] common_interrupt+0x1a/0x20
>      [<c0100690>] default_idle+0x0/0x40
>      [<c01006ba>] default_idle+0x2a/0x40
>      [<c0100760>] cpu_idle+0x40/0x70
>      [<c03728c7>] start_kernel+0x147/0x170
>     handlers:
>     [<c0227ef0>] (usb_hcd_irq+0x0/0x60)
>     [<c0227ef0>] (usb_hcd_irq+0x0/0x60)
> 
> At which point, USB is dead.
> 
> Do you know if 'acpi' is responsible for this?

Solved!  After many kernel compile and many kernel paramters,
'acpi=noirq' or 'pci=noacpi' solved the IRQ being disabled.

I'm running Abit VP6 dual-P3 (Via Apollo 133A, VT82C694X, VT82C686B).

-- 
William Park <opengeometry@yahoo.ca>, Toronto, Canada
Slackware Linux -- because I can type.
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