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

From: Oliver Neukum
Date: Sat Feb 20 2010 - 13:19:35 EST


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"?

> > 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?

Regards
Oliver
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