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From: Hans Petter Selasky <hselasky@c2i.net>
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Cc: Bill Squire {billsf} <billsf@cuba.calyx.nl>
Subject: Re: The only problems with v8.0 are:
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On Tuesday 01 September 2009 22:13:46 Bill Squire {billsf} wrote:
> I believe snd_uaudio is not expecting HID.
> Plugging in the driver in with hardware attached causes instant (but
> harmless) freezing and no dump.

Hi,

Test proposal:

Try to reduce:

#define	UAUDIO_RECURSE_LIMIT   24	/* rounds */

Into:

#define	UAUDIO_RECURSE_LIMIT   10 /* rounds */

In: /usr/src/sys/dev/sound/usb/uaudio.c

Maybe the current descriptor parsing code is too CPU hungry if the descriptor 
is bad :-)

--HPS