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To: linux-kernel@vger.kernel.org
Subject: Re: VIA Chipsets + USB + SMP == UGLY TRASH
In-Reply-To: <E16IRTQ-0003oN-00@s.automatix.de>
From: Jens Gecius <jens@gecius.de>
Date: Mon, 24 Dec 2001 05:53:38 -0500
In-Reply-To: <E16IRTQ-0003oN-00@s.automatix.de> (Juergen Sauer's message of
 "Mon, 24 Dec 2001 10:32:49 +0100")
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Juergen Sauer <jojo@automatix.de> writes:

> Hi!
> Merry X-Mas everywhere !

Same to you.

> So, my USB tryout is over. 
> This is the expierience report:
> You should not try to use VIA Chipsets + SMP + USB, that's
> the worst thinkable idea. It's junk (usb-Part).

Well, it's not junk, I'd say. It works fine here on my gigabyte
dualboard. 

> That's why:
> 1. not solved USB Irq errors in APIC mode, causes:
> 	Error -110, device does not accept ID
> 	USB Host is recognized fine, no device is attaced

I used to have problems with APIC and my network card, but that's
over. APIC works just fine with my box (USB mouse, USB scanner).

> This is an error somewhere in the Kernel APIC Irq routing, which may 
> worked around with "append noapic pirq="your irq" but using such a
> cutdown

As I was told by Alan, it's not that "cutdown" as you would expect.

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