Re: [REGRESSION] "USB: use kfifo to buffer usb-generic serial writes" causes gobi_loader to hang

From: Anssi Hannula
Date: Sun Feb 21 2010 - 16:38:18 EST


On lauantai 20 helmikuu 2010 20:19:10 Oliver Neukum wrote:
> Am Samstag, 20. Februar 2010 17:03:41 schrieb Anssi Hannula:
> > > But something must kill your last URB.
> > > You are not using autosuspend are you?
> >
> > Don't know, usbcore has autosuspend=2 and the gobi device has
> > autosuspend=2 and supports_autosuspend=1.
>
> What is the content of "level"?

"on"

> > > Can load usbserial with "debug=1"?
> >
> > Here's the end of dmesg when running with that option:
> > http://stuff.onse.fi/gobi2000/gobi-regression.dmesg.log
> >
> > This is again with the gobi_loader with extra sleep added in the
> > beginning. Otherwise it hangs (which is the actual original problem).
>
> That log makes sure that the final cancellation comes from closing
> the file. Is that a log of a working run?

No.

--
Anssi Hannula
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