linux-kernel - Re: [REGRESSION] "USB: use kfifo to buffer usb-generic serial writes" causes gobi

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Date:	Mon, 15 Feb 2010 14:08:27 +0100
From:	Oliver Neukum <oliver@...kum.org>
To:	Anssi Hannula <anssi.hannula@....fi>
Cc:	Alan Stern <stern@...land.harvard.edu>,
	Matthew Garrett <mjg59@...f.ucam.org>, dvomlehn@...co.com,
	gregkh@...e.de, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [REGRESSION] "USB: use kfifo to buffer usb-generic serial writes" causes gobi_loader to hang

Am Samstag, 13. Februar 2010 20:01:54 schrieb Anssi Hannula:
> > I'll get back to this later today, including testing with mdelay in
> > port_release with the extra sleep calls in gobi_loader.
> 
> port_release is only called when the serial device is removed, so this has no 
> effect here.

But something must kill your last URB.
You are not using autosuspend are you? Can load usbserial with "debug=1"?

	Regards
		Oliver
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