On 7/24/05, Pierre Ossman <[email protected]> wrote:
> Sorry about reporting this error so late but the machine in question had
> gone some time without upgrades.
>
> The problem I'm seeing is that IRQs stop working for one of the IRQ
> slots on the machine. It's only that slot, not the entire IRQ, since the
> two slots (it's a small machine) both get routed to IRQ 10.
>
> I've included dmesg from 2.6.10-rc1 (which works) and 2.6.10-rc2 (which
> doesn't).
>
> I've also tried reverting the patches that modifies
> arch/i386/kernel/irq.c and arch/i386/pci/irq.c but it didn't solve the
> problem. So now I need some more input on which patches to try.
>
[snip]
>
> Linux version 2.6.10-rc2 ([email protected]) (gcc version 3.3.3 20040412 (Red Hat Linux 3.3.3-7)) #8 Wed Jul 20 02:57:15 CEST 2005
[snip]
> ACPI: Using PIC for interrupt routing
[snip]
> PCI: Using ACPI for IRQ routing
> ** PCI interrupts are no longer routed automatically. If this
> ** causes a device to stop working, it is probably because the
> ** driver failed to call pci_enable_device(). As a temporary
> ** workaround, the "pci=routeirq" argument restores the old
> ** behavior. If this argument makes the device work again,
> ** please email the output of "lspci" to [email protected]
> ** so I can fix the driver.
[snip]
Have you tried the suggestion given "... As a temporary workaround,
the "pci=routeirq" argument..." ?
You could also try the pci=noacpi boot option to see if that changes anything.
Also, that's a fairly old kernel you have there, could you try
2.6.13-rc3, 2.6.13-rc3-git6 or 2.6.13-rc3-mm1 ?
--
Jesper Juhl <[email protected]>
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