From owner-freebsd-wireless@FreeBSD.ORG  Mon Dec 10 09:59:56 2012
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Date: Mon, 10 Dec 2012 11:59:51 +0200
From: Volodymyr Kostyrko <c.kworr@gmail.com>
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To: Adrian Chadd <adrian@freebsd.org>
Subject: Re: rum0 based USB wireless adapter dumps core
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09.12.2012 09:49, Adrian Chadd:
> Oo, someone else has seen this bug!
>
> I'm honestly not sure what's going on here. I think we can just
> disable that panic and ensure that we don't somehow end up with a
> stalled powersave queue.

The one thing which is just weird is:

ieee80211_load_module: load the wlan_amrr module by hand for now.

When I added this module to kld_list machine turns stable. At least I 
can't crash it anymore yet.

-- 
Sphinx of black quartz, judge my vow.