From owner-freebsd-wireless@FreeBSD.ORG  Sun Feb 10 08:04:36 2013
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From: Hans Petter Selasky <hselasky@c2i.net>
To: Adrian Chadd <adrian@freebsd.org>
Subject: Re: panic on removing urtw0
Date: Sun, 10 Feb 2013 09:05:37 +0100
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On Sunday 10 February 2013 03:17:03 Adrian Chadd wrote:
> Yes to both - i think some USB stack / memory buffer changes are
> responsible for your issue. :-)
> 

Hi,

Can you send me the backtrace of the panic and I'll fix it. I fixed panic upon 
attach.

--HPS