From nobody@FreeBSD.org  Wed Jan  2 04:04:25 2013
Return-Path: <nobody@FreeBSD.org>
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id B19A2FFC
	for <freebsd-gnats-submit@FreeBSD.org>; Wed,  2 Jan 2013 04:04:25 +0000 (UTC)
	(envelope-from nobody@FreeBSD.org)
Received: from red.freebsd.org (red.freebsd.org [IPv6:2001:4f8:fff6::22])
	by mx1.freebsd.org (Postfix) with ESMTP id 934338FC0A
	for <freebsd-gnats-submit@FreeBSD.org>; Wed,  2 Jan 2013 04:04:25 +0000 (UTC)
Received: from red.freebsd.org (localhost [127.0.0.1])
	by red.freebsd.org (8.14.5/8.14.5) with ESMTP id r0244OXG005082
	for <freebsd-gnats-submit@FreeBSD.org>; Wed, 2 Jan 2013 04:04:24 GMT
	(envelope-from nobody@red.freebsd.org)
Received: (from nobody@localhost)
	by red.freebsd.org (8.14.5/8.14.5/Submit) id r0244Oll005081;
	Wed, 2 Jan 2013 04:04:24 GMT
	(envelope-from nobody)
Message-Id: <201301020404.r0244Oll005081@red.freebsd.org>
Date: Wed, 2 Jan 2013 04:04:24 GMT
From: PseudoCylon <moonlightakkiy@yahoo.ca>
To: freebsd-gnats-submit@FreeBSD.org
Subject: struct ieee80211_node is freed during active BA session
X-Send-Pr-Version: www-3.1
X-GNATS-Notify:

>Number:         174891
>Category:       kern
>Synopsis:       [ieee80211] struct ieee80211_node is freed during active BA session
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-wireless
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Jan 02 04:10:00 UTC 2013
>Closed-Date:    
>Last-Modified:  Sun Jan 20 01:57:43 UTC 2013
>Originator:     PseudoCylon
>Release:        9.1-PRERELEASE
>Organization:
>Environment:
9.1-PRERELEASE #1 r244163M: Wed Dec 12 20:37:07 EST 2012
>Description:
When ieee80211_find_rxnode() is called with a segregated ampdu frame, sometime the function returns NULL.

Currently, exact mechanism is unknown. Maybe, tearing down of BA session was failed or miscounting of ni_refcnt.

More detail will be submitted as soon as discovered.

Related thread:
http://lists.freebsd.org/pipermail/freebsd-wireless/2013-January/002718.html
>How-To-Repeat:
setup a WiFi connection and patiently wait.
>Fix:
not yet known

>Release-Note:
>Audit-Trail:
Responsible-Changed-From-To: freebsd-bugs->freebsd-wireless 
Responsible-Changed-By: linimon 
Responsible-Changed-When: Sun Jan 20 01:57:27 UTC 2013 
Responsible-Changed-Why:  
Over to maintainer(s). 

http://www.freebsd.org/cgi/query-pr.cgi?pr=174891 
>Unformatted:
