Cisco AP1200 core dump

Hi

I have just had a radio failure on one of our Cisco AIR-AP1231G-E-K9
access points. A reload fixed it but I would like to try and figure out
what happened. Can anyone suggest what might be the problem? Here the log
contents prior to the reload :-

ap0#sh logging
Syslog logging: enabled (0 messages dropped, 3 messages rate-limited,
0 flushes, 0 overruns, xml disabled, filtering disabled)
Console logging: level debugging, 1876 messages logged, xml disabled,
filtering disabled
Monitor logging: level debugging, 0 messages logged, xml disabled,
filtering disabled
Buffer logging: level debugging, 1878 messages logged, xml disabled,
filtering disabled
Logging Exception size (4096 bytes)
Count and timestamp logging messages: disabled Trap logging: level
informational, 981 message lines logged

Log Buffer (4096 bytes):
OT11-7-AUTH_FAILED: Station 0012.f0cc.151a Authentication failed Nov 16
14:13:42.036: %DOT11-7-AUTH_FAILED: Station 0012.f0cc.151a Authentication
failed Nov 16 14:30:43.553: %DOT11-6-ASSOC: Interface Dot11Radio0, Station
000c.f15e.5bab Associated KEY_MGMT[WPA] Nov 16 14:36:36.103:
%DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station
000c.f15e.5bab Reason: Previous authentication no longer valid Nov 16
14:56:48.878: %DOT11-7-AUTH_FAILED: Station 0011.956c.e612 Authentication
failed Nov 16 15:25:20.523: %DOT11-6-ASSOC: Interface Dot11Radio0, Station
000d.88fa.7605 Associated KEY_MGMT[NONE] Nov 16 15:25:48.659:
%DOT11-4-MAXRETRIES: Packet to client 000d.88fa.7605 reached max retries,
removing the client Nov 16 15:25:48.660: %DOT11-6-DISASSOC: Interface
Dot11Radio0, Deauthenticating Station 000d.88fa.7605 Reason: Previous
authentication no longer valid Nov 16 15:25:49.299: %DOT11-6-ASSOC:
Interface Dot11Radio0, Station 000d.88fa.7605 Associated KEY_MGMT[NONE]
Nov 16 15:25:53.600: %DOT11-4-MAXRETRIES: Packet to client 000d.88fa.7605
reached max retries, removing the client Nov 16 15:25:56.672:
%DOT11-6-ASSOC: Interface Dot11Radio0, Station 000d.88fa.7605 Associated
KEY_MGMT[NONE] Nov 16 15:28:29.843: %DOT11-4-MAXRETRIES: Packet to client
000d.88fa.7605 reached max retries, removing the client Nov 16
15:28:29.843: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating
Station 000d.88fa.7605 Reason: Previous authentication no longer valid Nov
16 15:37:02.776: %DOT11-4-MAXRETRIES: Packet to client 0011.956c.e612
reached max retries, removing the client Nov 16 15:37:02.776: Client
0011.956c.e612 failed: reached maximum retries Nov 16 15:44:27.370:
%DOT11-6-ASSOC: Interface Dot11Radio0, Station 0011.956c.e612 Associated
KEY_MGMT[WPA] Nov 16 15:57:42.644: %DOT11-6-ASSOC: Interface Dot11Radio0,
Station 0090.4bf4.8747 Associated KEY_MGMT[WPA] Nov 16 16:12:53.686:
%DOT11-6-ASSOC: Interface Dot11Radio0, Station 0011.24a3.b8b1 Associated
KEY_MGMT[WPA] Nov 16 16:45:10.273: %DOT11-7-AUTH_FAILED: Station
0014.a516.2207 Authentication failed Nov 16 17:15:27.888:
%DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station
0011.24a3.b8b1 Reason: Previous authentication no longer valid Nov 16
17:15:58.436: %DOT11-7-AUTH_FAILED: Station 0011.24a3.b8b1 Authentication
failed Nov 16 17:57:55.434: %DOT11-7-AUTH_FAILED: Station 0009.2d0d.bd66
Authentication failed Nov 16 17:58:14.182: %DOT11-6-ASSOC: Interface
Dot11Radio0, Station 0009.2d0d.bd66 Associated KEY_MGMT[WPA] Nov 16
18:06:03.817: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating
Station 0011.956c.e612 Reason: Disassociated because sending station is
leavin Nov 16 18:12:03.641: *** Not encrypted dot1x packet from
0090.4bf4.8747 has been discarded Nov 16 18:12:29.391: %DOT11-6-DISASSOC:
Interface Dot11Radio0, Deauthenticating Station 0090.4bf4.8747 Reason:
Previous authentication no longer valid Nov 16 18:26:43.741:
%DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station
0009.2d0d.bd66 Reason: Previous authentication no longer valid Nov 20
13:26:14.495: Writing radio coredump to
'flash:/r12_58012_6BE0_79903C43.rcore' Nov 20 13:26:29.484: Writing radio
coredump to 'flash:/r12_58012_6BE0_7A74F3F1.rcore' Nov 20 13:26:34.500:
%LINK-3-UPDOWN: Interface Dot11Radio0, changed state to down Nov 20
13:26:35.500: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0,
changed state to down Nov 20 13:26:36.099: %DOT11-2-RADIO_FAILED:
Interface Dot11Radio0, failed - Driver transmit queue stuck -Traceback=
45F980 4621BC 45F3DC 158AA0 Nov 20 13:26:36.102: %DOT11-4-LOADING_RADIO:
Interface Dot11Radio0, loading the radio firmware
(flash:/c1200-k9w7-mx.123-7.JA1/5101.img) Nov 20 13:26:36.161:
%LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset Nov 20
13:26:36.909: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to up
Nov 20 13:26:37.909: %LINEPROTO-5-UPDOWN: Line protocol on Interface
Dot11Radio0, changed state to up Nov 20 13:50:29.242:
%DOT11-7-AUTH_FAILED: Station 0012.f0ef.12bd Authentication failed ap0#
.

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