2010-07-29 11:22:08

by Sitsofe Wheeler

[permalink] [raw]
Subject: WARNING: at net/wireless/mlme.c:47 cfg80211_send_rx_auth+0x8a/0x130

Hi,

Over the past 6 months or so I sometimes see warn on slowpath in dmesg
if I turn on my EeePC 900 (which uses ath5k) and it immediately connects
to AP. Here's an example of the warning from a recent kernel:

[ 13.010403] wlan0: deauthenticating from xx:xx:xx:xx:xx:xx by local choice (reason=3)
[ 13.016644] wlan0: authenticate with xx:xx:xx:xx:xx:xx (try 1)
[ 13.025436] wlan0: authenticated
[ 13.025445] ------------[ cut here ]------------
[ 13.025458] WARNING: at net/wireless/mlme.c:47 cfg80211_send_rx_auth+0x8a/0x130()
[ 13.025463] Hardware name: 900
[ 13.025469] Pid: 490, comm: phy0 Not tainted 2.6.35-rc6-00150-gd15aa2c #1
[ 13.025474] Call Trace:
[ 13.025485] [<b01247f3>] ? warn_slowpath_common+0x73/0xb0
[ 13.025492] [<b04a2f8a>] ? cfg80211_send_rx_auth+0x8a/0x130
[ 13.025499] [<b04a2f8a>] ? cfg80211_send_rx_auth+0x8a/0x130
[ 13.025506] [<b0124849>] ? warn_slowpath_null+0x19/0x20
[ 13.025512] [<b04a2f8a>] ? cfg80211_send_rx_auth+0x8a/0x130
[ 13.025519] [<b04b65c7>] ? ieee80211_probe_auth_done+0x67/0x90
[ 13.025526] [<b04b7a63>] ? ieee80211_work_work+0x253/0x14e0
[ 13.025534] [<b0120790>] ? dequeue_task_fair+0x20/0x1d0
[ 13.025540] [<b012052a>] ? T.1071+0x2a/0x80
[ 13.025547] [<b04d51e0>] ? schedule+0x130/0x2d0
[ 13.025553] [<b04b7810>] ? ieee80211_work_work+0x0/0x14e0
[ 13.025562] [<b0137f1f>] ? worker_thread+0x10f/0x210
[ 13.025569] [<b013b2d0>] ? autoremove_wake_function+0x0/0x40
[ 13.025576] [<b0137e10>] ? worker_thread+0x0/0x210
[ 13.025582] [<b013af04>] ? kthread+0x74/0x80
[ 13.025587] [<b013ae90>] ? kthread+0x0/0x80
[ 13.025594] [<b01030b6>] ? kernel_thread_helper+0x6/0x10
[ 13.025599] ---[ end trace 84910d510f8a9a59 ]---

After a delay the machine goes on to the connect to the AP anyway so it
seems fairly harmless. Any ideas?

--
Sitsofe | http://sucs.org/~sits/