Re: Linux 2.6.14 ehci-hcd hangs machine

[Borislav Petkov <bbpetkov@yahoo.de>]

On Mon, Oct 31, 2005 at 09:53:15AM -0800, Aleksey Gorelov wrote:
> >-----Original Message-----
> >From: linux-kernel-owner@vger.kernel.org 
> >[mailto:linux-kernel-owner@vger.kernel.org] On Behalf Of 
> >Borislav Petkov
> >Sent: Sunday, October 30, 2005 12:36 AM
> >To: Linus Torvalds
> >Cc: Linux Kernel Mailing List; 
> >dbrownell@users.sourceforge.net; greg@kroah.com
> >Subject: Re: Linux 2.6.14 ehci-hcd hangs machine
> >
> >On Thu, Oct 27, 2005 at 05:28:50PM -0700, Linus Torvalds wrote:
> >> 
> >> Ok, it's finally there. 
> >... and it still won't boot on my machine. It hangs while initializing
> >the ehci usb host controller saying:
> >
> ><snip>
> >...
> >[4294691.834000] usb usb3: Product: UHCI Host Controller
> >[4294691.840000] usb usb3: Manufacturer: Linux 2.6.14 uhci_hcd
> >[4294691.847000] usb usb3: SerialNumber: 0000:00:1d.2
> >[4294691.880000] hub 3-0:1.0: USB hub found
> >[4294691.885000] hub 3-0:1.0: 2 ports detected
> >[4294694.855000] ACPI: PCI Interrupt 0000:00:1d.7[D] -> GSI 23 (level,
> >				low) -> IRQ 20
> >[4294694.864000] ehci_hcd 0000:00:1d.7: EHCI Host Controller
> >[4294694.870000] ehci_hcd 0000:00:1d.7: debug port 1
> ></snip>
> >
> >and dies. This bug is actually in there since 2.6.14-rc4 (see:
> >http://bugzilla.kernel.org/show_bug.cgi?id=5428) and David Brownell
> >supplied a patch which turned out to be useless eventually 
> >since _rebooting_ 
> >the kernel with the 'usb-handoff' (and without the patch) 
> >solved the problem. 
> >As it turns out, it actually solves the problem only for the 
> >reboot case.
> >My machine still hangs on an initial boot with and without 
> >'usb-handoff'.
> >.config attached.
> 
> Boris, 
> 
>   While running with 'usb-handoff' turned on, do you see something like
> "EHCI early BIOS handoff failed" (in power on or reboot cases) ? 
Nope,
		nothing of the like in the serial console log.

Regards,
		Boris.

	

	
		
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