Updated WLCs shows wierd log messages and most APs do not associate

Hi, I recently updated my 4402 WLC to latest Software Version (7.0.98.0).
This first seamed to have worked fine. WLCs rebooted fine, then APs rebooted and upgraded their software images.
All fine as it seamed.
The I went on to also upgrade to latest Emergency Image Version(5.2.157.0).
After rebooting the WLCs most APs won't associate again.
Logs from WLCs shows a lot of messages like:
Oct 7 20:11:38 wlc-1 WLC-1: *mmListen: Oct 07 22:11:38.857: %MM-3-INVALID_PKT_RECVD: mm_listen.c:6691 Received an invalid packet from 192.168.128.18. Source member:0.0.0.0. source member unknown.
Oct 7 20:11:38 wlc-1 WLC-1: *mmListen: Oct 07 22:11:38.857: %OSAPI-5-OSAPI_INVALID_TIMER: timerlib.c:542 Failed to retrive timer.
Oct 7 20:11:38 wlc-1 WLC-1: -Traceback: 105fbe18 102cb318 105f3ab0 10c0d250 111cd0cc
Oct 7 20:11:38 wlc-1 WLC-1:
Oct 7 20:11:38 wlc-1 WLC-1: *mmListen: Oct 07 22:11:38.857: %MM-3-INVALID_PKT_RECVD: mm_listen.c:6691 Received an invalid packet from 192.168.128.18. Source member:0.0.0.0. source member unknown.
Oct 7 20:11:38 wlc-1 WLC-1: *mmListen: Oct 07 22:11:38.857: %OSAPI-5-OSAPI_INVALID_TIMER: timerlib.c:542 Failed to retrive timer.
Oct 7 20:11:38 wlc-1 WLC-1: -Traceback: 105fbe18 102cb318 105f3ab0 10c0d250 111cd0cc
Oct 7 20:11:38 wlc-1 WLC-1:
Oct 7 20:11:39 wlc-1 WLC-1: *mmListen: Oct 07 22:11:39.749: %MM-3-INVALID_PKT_RECVD: mm_listen.c:6691 Received an invalid packet from 192.168.128.18. Source member:0.0.0.0. source member unknown.
Oct 7 20:11:39 wlc-1 WLC-1: *mmListen: Oct 07 22:11:39.749: %OSAPI-5-OSAPI_INVALID_TIMER: timerlib.c:542 Failed to retrive timer.
Oct 7 20:11:39 wlc-1 WLC-1: -Traceback: 105fbe18 102cb318 105f3ab0 10c0d250 111cd0cc
Oct 7 20:11:39 wlc-1 WLC-1:
Oct 7 20:11:39 wlc-1 WLC-1: *mmListen: Oct 07 22:11:39.749: %MM-3-INVALID_PKT_RECVD: mm_listen.c:6691 Received an invalid packet from 192.168.128.18. Source member:0.0.0.0. source member unknown.
Oct 7 20:11:39 wlc-1 WLC-1: *mmListen: Oct 07 22:11:39.749: %OSAPI-5-OSAPI_INVALID_TIMER: timerlib.c:542 Failed to retrive timer.
Oct 7 20:11:39 wlc-1 WLC-1: -Traceback: 105fbe18 102cb318 105f3ab0 10c0d250 111cd0cc
Oct 7 20:11:39 wlc-1 WLC-1:
Oct 7 20:11:40 wlc-1 WLC-1: *mmListen: Oct 07 22:11:40.749: %MM-3-INVALID_PKT_RECVD: mm_listen.c:6691 Received an invalid packet from 192.168.128.18. Source member:0.0.0.0. source member unknown.
Oct 7 20:11:40 wlc-1 WLC-1: *mmListen: Oct 07 22:11:40.749: %OSAPI-5-OSAPI_INVALID_TIMER: timerlib.c:542 Failed to retrive timer.
Oct 7 20:11:40 wlc-1 WLC-1: -Traceback: 105fbe18 102cb318 105f3ab0 10c0d250 111cd0cc
Oct 7 20:11:40 wlc-1 WLC-1:
Oct 7 20:11:40 wlc-1 WLC-1: *mmListen: Oct 07 22:11:40.749: %MM-3-INVALID_PKT_RECVD: mm_listen.c:6691 Received an invalid packet from 192.168.128.18. Source member:0.0.0.0. source member unknown.
Oct 7 20:11:40 wlc-1 WLC-1: *mmListen: Oct 07 22:11:40.749: %OSAPI-5-OSAPI_INVALID_TIMER: timerlib.c:542 Failed to retrive timer.
Oct 7 20:11:40 wlc-1 WLC-1: -Traceback: 105fbe18 102cb318 105f3ab0 10c0d250 111cd0cc
Oct 7 20:11:40 wlc-1 WLC-1:
Oct 7 20:11:40 wlc-1 WLC-1: *osapiReaper: Oct 07 22:11:40.905: %OSAPI-6-FILE_DOES_NOT_EXIST: osapi_file.c:348 File : /proc/755/stat does not exist.(errno 2)
Oct 7 20:11:40 wlc-1 WLC-1: -Traceback: 105eaae4 105f4d44 105f7848 105fa648 105f3ab0 10c0d250 111cd0cc
Oct 7 20:11:40 wlc-1 WLC-1:
Oct 7 20:11:43 wlc-1 WLC-1: *mmMobility: Oct 07 22:11:43.210: %OSAPI-5-OSAPI_INVALID_TIMER: timerlib.c:542 Failed to retrive timer.
Oct 7 20:11:43 wlc-1 WLC-1: -Traceback: 105fbe18 102d8be0 102bc81c 102d5d20 105f3ab0 10c0d250 111cd0cc
Oct 7 20:11:43 wlc-1 WLC-1:
Oct 7 20:11:43 wlc-1 WLC-1: *mmListen: Oct 07 22:11:43.210: %MM-3-INVALID_PKT_RECVD: mm_listen.c:6691 Received an invalid packet from 192.168.128.18. Source member:0.0.0.0. source member unknown.
Oct 7 20:11:43 wlc-1 WLC-1: *mmListen: Oct 07 22:11:43.211: %OSAPI-5-OSAPI_INVALID_TIMER: timerlib.c:542 Failed to retrive timer.
Oct 7 20:11:43 wlc-1 WLC-1: -Traceback: 105fbe18 102cb318 105f3ab0 10c0d250 111cd0cc
Oct 7 20:11:43 wlc-1 WLC-1:
Oct 7 20:11:50 wlc-1 WLC-1: *osapiReaper: Oct 07 22:11:50.913: %OSAPI-6-FILE_DOES_NOT_EXIST: osapi_file.c:348 File : /proc/755/stat does not exist.(errno 2)
Oct 7 20:11:50 wlc-1 WLC-1: -Traceback: 105eaae4 105f4d44 105f7848 105fa648 105f3ab0 10c0d250 111cd0cc
When looking back a bit in the logs it looks like this started after upgrading the Software version. But after this first reload it the APs came back and worked. Now they don't.
The case seams to be the same with both my WLCs.
What could have gone wrong?
Please advice.

Not sure which messages are concerning you the most...
Regarding the message:
Oct 7 20:11:39 wlc-1 WLC-1: *mmListen: Oct 07 22:11:39.749: %OSAPI-5-OSAPI_INVALID_TIMER: timerlib.c:542 Failed to retrive timer.
Oct 7 20:11:39 wlc-1 WLC-1: -Traceback: 105fbe18 102cb318 105f3ab0 10c0d250 111cd0cc
Oct 7 20:11:39 wlc-1 WLC-1:
There is already a bug for it: CSCth64522
And for:
Oct 7 20:11:50 wlc-1 WLC-1: *osapiReaper: Oct 07 22:11:50.913: %OSAPI-6-FILE_DOES_NOT_EXIST: osapi_file.c:348 File : /proc/755/stat does not exist.(errno 2)
Oct 7 20:11:50 wlc-1 WLC-1: -Traceback: 105eaae4 105f4d44 105f7848 105fa648 105f3ab0 10c0d250 111cd0cc
Looks like it's matching CSCtf39550
Both bug fixes should be included in the next 7.0 release and should not impact the WLC behavior.
Hope this helps...

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