kern/174891: struct ieee80211_node is freed during active BA session
PseudoCylon
moonlightakkiy at yahoo.ca
Wed Jan 2 04:10:03 UTC 2013
>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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