linux-kernel - Re: 2.6.27-rc2 USB suspend regression

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Date:	Wed, 20 Aug 2008 17:28:39 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Jeremy Fitzhardinge <jeremy@...p.org>
cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	<linux-usb@...r.kernel.org>, "Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: 2.6.27-rc2 USB suspend regression

On Wed, 20 Aug 2008, Jeremy Fitzhardinge wrote:

> Using the Fedora Rawhide kernel RPM "2.6.27-0.238.rc2.fc10.i686"
> (kernel-2.6.27-0.238.rc2.fc10.i686), I'm seeing suspend to ram
> failures.  The suspend seems to go OK, but then I just get endless:
> 
> usb 5-1: uhci_result_common: failed with status 440000
> 
> messages, with occasional flickers of something else being printed
> (perhaps).  The machine is otherwise unresponsive.

You could comment out that error message in order to see what else is 
in the log.  It is located in drivers/usb/host/uhci-q.c in the 
uhci_result_common() function.

You could try running -rc3 instead of -rc2, although that probably 
won't make much difference.

What USB devices do you have on the failing system?  In particular,
what is 5-1?  If you unplug it before suspending, does the problem go
away?  (It certainly should!)

Alan Stern

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