Re: EHCI + APIC errors = no usb goodness

From: Kurt Wall
Date: Tue Jan 24 2006 - 22:03:32 EST


On Tue, Jan 24, 2006 at 07:22:20AM +0100, Andi Kleen took 33 lines to write:
>
> That was the laptop with ATI chipset right? Most of them have routing
> troubles with the timer interrupt. I finally gave up trying to fix
> them and just switched over to using the APIC timer which is run
> by the CPU and not dependent on chipsets. Use the latest
> patch from my x86-64 queue ftp://ftp.firstfloor.org/pub/ak/x86_64/quilt/
>
> This should both eliminate the APIC errors and likely any timing problems
> for 64bit kernels.

I can confirm these two paragraphs. Andi's patche(s) worked for me on
2.6.16-rc1.

> Ah, 32bit? For that just run without APIC.

Kurt
--
A billion here, a couple of billion there -- first thing you know it
adds up to be real money.
-- Senator Everett McKinley Dirksen
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