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Date:      Wed, 2 Jan 2013 04:04:24 GMT
From:      PseudoCylon <moonlightakkiy@yahoo.ca>
To:        freebsd-gnats-submit@FreeBSD.org
Subject:   kern/174891: struct ieee80211_node is freed during active BA session
Message-ID:  <201301020404.r0244Oll005081@red.freebsd.org>
Resent-Message-ID: <201301020410.r024A2MI018194@freefall.freebsd.org>

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>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:



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