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Date: Mon, 20 Dec 2010 14:20:12 GMT
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To: freebsd-net@FreeBSD.org
From: Bernhard Schmidt <bschmidt@freebsd.org>
Cc: 
Subject: Re: kern/144987: [wpi] [panic] injecting packets with wlaninject
	using Intel 3945ABG wireless card gives kernel panic
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The following reply was made to PR kern/144987; it has been noted by GNATS.

From: Bernhard Schmidt <bschmidt@freebsd.org>
To: bug-followup@freebsd.org,
 gabrielquadros@hotmail.com
Cc:  
Subject: Re: kern/144987: [wpi] [panic] injecting packets with wlaninject using Intel 3945ABG wireless card gives kernel panic
Date: Mon, 20 Dec 2010 15:10:02 +0100

 Hi,
 
 The issue here is that you've tried to use wlaninject with a VAP in sta mode. 
 As soon as wlaninject tries to set up the interface, net80211 will start to do 
 a scan which means constant channel switches until it finds something to 
 associate. wlaninject itself is not aware of that and happily injects frames 
 no matter what the current channel state is, as the above trace shows, you hit 
 a point where no channel is set between 2 scan interations.
 
 wlaninject is supposed to be used with VAPs in ahdemo mode and wpi(4) does not 
 support that mode. Therefore I tend to close this PR.
 
 -- 
 Bernhard