linux-kernel - Re: 2.6.31-rc2 warning in drivers/usb/host/ehci-hcd.c

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Date:	Tue, 7 Jul 2009 11:30:18 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	"Carlos R. Mafra" <crmafra2@...il.com>
cc:	linux-kernel@...r.kernel.org, <linux-usb@...r.kernel.org>,
	<dbrownell@...rs.sourceforge.net>
Subject: Re: 2.6.31-rc2 warning in drivers/usb/host/ehci-hcd.c

On Tue, 7 Jul 2009, Carlos R. Mafra wrote:

> I was looking at the 'dmesg' output for 2.6.31-rc2 and noticed
> this warning
> 
> ------------[ cut here ]------------
> WARNING: at drivers/usb/host/ehci-hcd.c:1048 ehci_endpoint_reset+0xfc/0x140 [ehci_hcd]()
> Hardware name: VGN-FZ240E
> clear_halt for a busy endpoint

My earlier message was wrong; the code in the option driver isn't 
really wrong.

What were you doing when this occurred?  Can you get this to happen
again?  Can you collect a usbmon trace for when this happens?

Alan Stern

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