linux-kernel - Re: EHCI, BIOS handoff warning/error?

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Message-ID: <4A567F52.1040505@gmail.com>
Date:	Thu, 09 Jul 2009 17:37:54 -0600
From:	Robert Hancock <hancockrwd@...il.com>
To:	lkml@...eThan.org
CC:	linux-kernel@...r.kernel.org
Subject: Re: EHCI, BIOS handoff warning/error?

On 07/09/2009 07:57 AM, Michael S. Zick wrote:
> Anyone with thoughts on this one?
> Even a translation of the message might help.
>
> pci 0000:00:01.0: disabling DAC on VIA PCI bridge
> pci 0000:00:10.0: uhci_check_and_reset_hc: legsup = 0x2000
> pci 0000:00:10.0: Performing full reset
> pci 0000:00:10.1: uhci_check_and_reset_hc: legsup = 0x2000
> pci 0000:00:10.1: Performing full reset
> pci 0000:00:10.2: uhci_check_and_reset_hc: legsup = 0x2000
> pci 0000:00:10.2: Performing full reset
> pci 0000:00:10.4: EHCI: BIOS handoff
> pci 0000:00:10.4: EHCI: BIOS handoff failed (BIOS bug?) 01010001
> pci 0000:01:00.0: Boot video device

That would mean the BIOS failed to indicate it has given up control of 
the EHCI controller within the allowed time period.
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