From owner-freebsd-bugs@FreeBSD.ORG  Wed Jan  2 04:10:03 2013
Return-Path: <owner-freebsd-bugs@FreeBSD.ORG>
Delivered-To: freebsd-bugs@smarthost.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
 by hub.freebsd.org (Postfix) with ESMTP id 14F1EC7
 for <freebsd-bugs@smarthost.ysv.freebsd.org>;
 Wed,  2 Jan 2013 04:10:03 +0000 (UTC)
 (envelope-from gnats@FreeBSD.org)
Received: from freefall.freebsd.org (freefall.freebsd.org
 [IPv6:2001:1900:2254:206c::16:87])
 by mx1.freebsd.org (Postfix) with ESMTP id C00948FC0A
 for <freebsd-bugs@smarthost.ysv.freebsd.org>;
 Wed,  2 Jan 2013 04:10:02 +0000 (UTC)
Received: from freefall.freebsd.org (localhost [127.0.0.1])
 by freefall.freebsd.org (8.14.5/8.14.5) with ESMTP id r024A2PY018195
 for <freebsd-bugs@freefall.freebsd.org>; Wed, 2 Jan 2013 04:10:02 GMT
 (envelope-from gnats@freefall.freebsd.org)
Received: (from gnats@localhost)
 by freefall.freebsd.org (8.14.5/8.14.5/Submit) id r024A2MI018194;
 Wed, 2 Jan 2013 04:10:02 GMT (envelope-from gnats)
Resent-Date: Wed, 2 Jan 2013 04:10:02 GMT
Resent-Message-Id: <201301020410.r024A2MI018194@freefall.freebsd.org>
Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer)
Resent-To: freebsd-bugs@FreeBSD.org
Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org,
 PseudoCylon <moonlightakkiy@yahoo.ca>
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
X-Send-Pr-Version: www-3.1
Subject: kern/174891: struct ieee80211_node is freed during active BA session
X-BeenThere: freebsd-bugs@freebsd.org
X-Mailman-Version: 2.1.14
Precedence: list
List-Id: Bug reports <freebsd-bugs.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-bugs>,
 <mailto:freebsd-bugs-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-bugs>
List-Post: <mailto:freebsd-bugs@freebsd.org>
List-Help: <mailto:freebsd-bugs-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-bugs>,
 <mailto:freebsd-bugs-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 02 Jan 2013 04:10:03 -0000


>Number:         174891
>Category:       kern
>Synopsis:       struct ieee80211_node is freed during active BA session
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>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:
>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:
>Unformatted: