> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of
> Michel Bouissou
> Sent: Sunday, July 10, 2005 2:11 AM
> To: [email protected]
> Cc: [email protected]; [email protected]
> Subject: Kernel 2.6.12 + IO-APIC + uhci_hcd = Trouble
>
> Hi there,
>
> I use a Gigabyte GA7-VAXP motherboard that has been fine for
> more than 2 years with 2.4 series kernels, and that gives
> trouble with 2.6.12 (and previous) kernels.
>
> The problem seems to sit between the UP IO-APIC and USB
> uhci_hcd driver.
>
> The GA7-VAXP MB is equipped with an Athlon 2000+ XP and a VIA
> KT400 chipset.
>
> Using 2.4 series kernel the IO-APIC is used just fine. Was
> never source of any kind of problem.
>
> Using 2.6.12 kernel, if the IO-APIC is enabled in the kernel
> configuration, then the interrupt controlling the uhci_hcd
> USB controller gets disabled as soon as uhci_hcd is initialized.
Michel,
Symptoms that you describe resemble several IRQ problems with VIA
chipset reported by others (but not quite...) Could you check on
bugzilla #4843 please
http://bugzilla.kernel.org/show_bug.cgi?id=4843 and see if the patch
fixes your problem.
Thanks,
--Natalie
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