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Subject: Re: 2.6.5-rc2-mm4 (and 3) IRQ problem
From: Len Brown <len.brown@intel.com>
To: Fabio Coatti <cova@ferrara.linux.it>
Cc: Linux Kernel <linux-kernel@vger.kernel.org>, Andrew Morton <akpm@osdl.org>
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Fabio,
no ACPI badness jumps out at me.
libata, uhci_hcd, or eth0 is likely at fault -- I'm not
going to venture which -- remove what you can and
see what makes the problem go away.

cheers,
-Len

On Mon, 2004-03-29 at 17:29, Fabio Coatti wrote:

> irq 18: nobody cared!
> Call Trace:
>  [<c010882b>] __report_bad_irq+0x2a/0x8b
>  [<c0108937>] note_interrupt+0x91/0xaf
>  [<c0108c4a>] do_IRQ+0x151/0x19a
>  [<c034b4c8>] common_interrupt+0x18/0x20
>  [<c0104c2e>] default_idle+0x0/0x2c
>  [<c0104c57>] default_idle+0x29/0x2c
>  [<c0104cbb>] cpu_idle+0x2e/0x3c
>  [<c0430a02>] start_kernel+0x196/0x1c5
>  [<c0430436>] unknown_bootoption+0x0/0x126
> 
> handlers:
> [<c02a7b0b>] (ata_interrupt+0x0/0x173)
> [<c02d2f9c>] (usb_hcd_irq+0x0/0x67)
> Disabling IRQ #18

> > > [root@kefk root]# cat /proc/interrupts
> > >            CPU0       CPU1
> > >   0:    1002506          0    IO-APIC-edge  timer
> > >   1:       4722          0    IO-APIC-edge  i8042
> > >   2:          0          0          XT-PIC  cascade
> > >   9:          0          0   IO-APIC-level  acpi
> > >  12:       8826          0    IO-APIC-edge  i8042
> > >  14:      11920          0    IO-APIC-edge  ide0
> > >  15:         23          0    IO-APIC-edge  ide1
> > >  16:     278123          0   IO-APIC-level  uhci_hcd, uhci_hcd, nvidia
> > >  17:       2337          0   IO-APIC-level  Intel ICH5
> > >  18:      56240          0   IO-APIC-level  libata, uhci_hcd, eth0
> > >  19:         55          0   IO-APIC-level  uhci_hcd
> > >  22:        279          0   IO-APIC-level  aic7xxx
> > >  23:          0          0   IO-APIC-level  ehci_hcd
> > > NMI:          0          0
> > > LOC:    1002427    1002439
> > > ERR:          0
> > > MIS:          0


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