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List:       linux-usb
Subject:    RE: FW: ehci->watchdog timer panic
From:       Alan Stern <stern () rowland ! harvard ! edu>
Date:       2009-06-29 18:39:52
Message-ID: Pine.LNX.4.44L0.0906291435280.17436-100000 () iolanthe ! rowland ! org
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On Mon, 29 Jun 2009, Yang Fei-AFY095 wrote:

> Alan,
> 
> Thanks you for your quick response. Is it possible that the watchdog be
> scheduled as a result of some activity on the device side. I'm not sure
> if there is a race condition when the host is trying to suspend the bus
> while the device is sending something.

No, this can't happen.  All URBs are unlinked before the root hub is 
suspended.

Alan Stern

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