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Date: Tue, 8 May 2012 23:51:06 +0700
From: Alexey Dokuchaev <danfe@nsu.ru>
To: Bernhard Schmidt <bschmidt@freebsd.org>
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Cc: stable@freebsd.org
Subject: Re: panic with if_iwi(4) upon "netif restart"
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On Mon, May 07, 2012 at 08:28:50PM +0200, Bernhard Schmidt wrote:
> does "ps" in kgdb reveal multiple instances of wpa_supplicant running?

Yes, grepping /var/crash/core.txt.0 shows two wpa_supplicant processes, one
in "-/Rs" state and another in "select/Ds".

> If so, this seems to be the well known devd+netif+supplicant+newstate
> race/missing refcount.
> 
> Wanna try attached patch?

Thanks, I will.

./danfe