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SubjectRe: ATI RS480-based motherboard: stuck while booting with kernel >= 2.6.15 rc1
	Subject: Re: ATI RS480-based motherboard: stuck while booting with kernel >= 2.6.15 rc1
Date: sab 21 gen 06 11:55:46 -0800

Quoting Andrew Morton (

> > and 1002:4373 is the USB2 (EHCI) controller. I attach the output of
> > lspci -vx. Even with, I have problems with USB. It did not
> > work at all, then I downloaded the latest bios, and now, right after
> > boot, usb works OK.
> OK, so it sounds like quirk_usb_disable_ehci() caused your machine to hang
> with the old BIOS. That's fairly bad behaviour from the kernel, even
> though the BIOS presumably had some problems.

It did not hang. When inserting USB disks, I got messages like:

ehci_hcd 0000:00:13.2: Unlink after no-IRQ? Controller is probably using the wrong IRQ.
usb 1-1: device not accepting address 2, error -110

and the usb-storage module was not loaded. But the kernel went on
working. After upgrading the BIOS, with the same kernel, the USB disk
was recognized. But I now notice that the log file, with both old and
new BIOS, contains these lines:

ehci_hcd 0000:00:13.2: BIOS handoff failed (160, 01010001)
ehci_hcd 0000:00:13.2: continuing after BIOS bug...
ehci_hcd 0000:00:13.2: new USB bus registered, assigned bus number 1
ehci_hcd 0000:00:13.2: irq 18, io mem 0xfe02b000
ehci_hcd 0000:00:13.2: USB 2.0 initialized, EHCI 1.00, driver 10 Dec 2004

(only, the IRQ number changed from 10 to 18 after changing BIOS)

> Can you please gather some more details on this and prepare a new report?
> The full demsg output, machine description, etc. It might be best to do
> this via a new record so we know where to find
> it.

I will try that. I saw on apic.c that APIC error 40 should mean
'received illegal vector,' but I have no clue about how to interpret

I will now play a bit with BIOS USB parameters.


* Se la Strada e la sua Virtu' non fossero state messe da parte,
* K * Carlo E. Prelz - che bisogno ci sarebbe
* di parlare tanto di amore e di rettitudine? (Chuang-Tzu)
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