2005-10-12 09:01:14

by Borislav Petkov

[permalink] [raw]
Subject: 2.6.14-rc4 echi_hcd hangs machine

Hi Greg,
I tried to boot 14-rc4 yesterday but it fails when it reaches the init code
forthe usb host controllers und freezes the machine totally:

<snip>
[4294687.294000] usb usb3: Manufacturer: Linux 2.6.14-rc4 uhci_hcd
[4294687.300000] usb usb3: SerialNumber: 0000:00:1d.2
[4294687.321000] hub 3-0:1.0: USB hub found
[4294687.326000] hub 3-0:1.0: 2 ports detected
[4294689.363000] ACPI: PCI Interrupt 0000:00:1d.7[D] -> GSI 23 (level, low) -> IRQ 20
[4294689.372000] ehci_hcd 0000:00:1d.7: EHCI Host Controller
[4294689.378000] ehci_hcd 0000:00:1d.7: debug port 1
<EOF>
</snip>

This happens with rc3 too so I thought it had something in common with this bug:
http://bugzilla.kernel.org/show_bug.cgi?id=5350 but it doesn't seem so. I've got
USB debugging enabled but the above is all you get over the serial console. The
rc? series don't have a kernel debugger so is there any other way to debug this?

Regards,
Boris.







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2005-10-12 17:11:42

by Greg KH

[permalink] [raw]
Subject: Re: 2.6.14-rc4 echi_hcd hangs machine

On Wed, Oct 12, 2005 at 10:45:33AM +0200, Borislav Petkov wrote:
> Hi Greg,
> I tried to boot 14-rc4 yesterday but it fails when it reaches the init code
> forthe usb host controllers und freezes the machine totally:
>
> <snip>
> [4294687.294000] usb usb3: Manufacturer: Linux 2.6.14-rc4 uhci_hcd
> [4294687.300000] usb usb3: SerialNumber: 0000:00:1d.2
> [4294687.321000] hub 3-0:1.0: USB hub found
> [4294687.326000] hub 3-0:1.0: 2 ports detected
> [4294689.363000] ACPI: PCI Interrupt 0000:00:1d.7[D] -> GSI 23 (level, low) -> IRQ 20
> [4294689.372000] ehci_hcd 0000:00:1d.7: EHCI Host Controller
> [4294689.378000] ehci_hcd 0000:00:1d.7: debug port 1
> <EOF>
> </snip>
>
> This happens with rc3 too so I thought it had something in common with this bug:
> http://bugzilla.kernel.org/show_bug.cgi?id=5350 but it doesn't seem so. I've got
> USB debugging enabled but the above is all you get over the serial console. The
> rc? series don't have a kernel debugger so is there any other way to debug this?

Can you file a new bug at bugzilla.kernel.org and we can take it from
there?

thanks,

greg k-h