Re: [linux-usb-devel] USB deadlock after resume

From: Alan Stern
Date: Wed Nov 21 2007 - 13:02:43 EST


On Wed, 21 Nov 2007, Markus Rechberger wrote:

> Not really, suspending doesn't work at all on my other notebook it
> just freezes..
> I'm basically trying to get that driver work on my eee PC [1], it's
> cheap and tiny so I don't expect anything special in there..
> The system is preloaded with Xandros (it's debian etch with a few
> custom applications) and linux 2.6.21.4.
>
> The system still locks up, although only if I leave the video
> application running during suspending. I don't have to reload the
> driver anymore after resuming if the video node doesn't get accessed
> (I'm looking for races in the uvc driver at the moment).

The point is that the system shouldn't lock up. The application might
fail or crash, but the system should continue to run. The fact that it
doesn't means that something is wrong in the kernel.

Alan Stern

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