From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Brownell <david-b@pacbell.net>
Subject: Re: DVB-T problems with MUSB
Date: Tue, 7 Oct 2008 12:32:27 -0700
Message-ID: <200810071232.27362.david-b@pacbell.net>
References: <70E3439A-A4CE-442B-928A-EEBAB253F279@student.utwente.nl>
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To: Koen Kooi <k.kooi@student.utwente.nl>
Cc: "linux-omap@vger.kernel.org List" <linux-omap@vger.kernel.org>, Ajay Kumar Gupta <ajay.gupta@ti.com>

On Tuesday 07 October 2008, Koen Kooi wrote:
> Is this a problem with MUSB, omap dma or the dvb stack?

ISTR a similar problem discussed on Linux-USB in the last
few months ...

Don't recall the outcome for sure, but I think the problem
was the DVB stack passing a DMA-unsafe buffer to USB.  If the
buffer came from vmalloc rather than kmalloc or get_pages,
passing it to USB is not allowed.

- Dave