01-08-2014 01:17 AM - edited 07-04-2021 11:54 PM
Curious if anyone has seen this.
All of our 5508 Wireless Controllers have just rebooted across our UK sites, all running version 7.4.110.0, all rebooted at the same time for no obvious reason. Our old 4402 controller didnt reboot.
01-08-2014 05:36 AM
Agree with Leo....
Paste the crashinfo from WLC :
How..... Check this:
COntroller>Management>Tech Support> Controller Crash
Regards
Sent from Cisco Technical Support iPhone App
01-08-2014 10:49 AM
How many controllers all together get rebooted. Check all controllers "show sysinfo" to see last reload reason & time of the reboot match each other.
Post one of them "show sysinfo" output to see
HTH
Rasika
***** Pls rate all useful responses ****
01-09-2014 10:31 AM
Generally, RMA is not possible for software reset reasons. Only if there is dataplane crash that can't be fixed via software will be considered as hardware failure besides other true failures.
Last Reset....................................... Software reset
In this case, the crash task was due to emweb, it is possible NMS device may be trying to push an config to all WLCs caused this crash. Stack trace and coredump should speak about the actual reason.
01-09-2014 02:07 PM
I am not saying you are hitting this bug. but in certain cases bugs are applicable to HW manufactured since certain date/time. So always worth to check.
Symptom:
Wireless LAN Controller may encounter unexpected reload without crash file or coredump.
Console log output may include "reaperWatcher rebooting" and "!!!!! Watchdog detected LOCKUP !!!!!",
and there may be "#OSAPI-2-REAPER_WATCHER_INFO" message in syslog.
Conditions:
5508, 2504 or WiSM2 manufactured since 2012.
Known Affected Releases
7.4(110.0)
7.0(240.0)
7.5(102.0)
Known Fixed Releases
7.4.121.0
7.6.100.0
.
.
HTH
Rasika
01-09-2014 02:35 PM
Not trying to debate, at the same time trying to help out
This bug is about CF driver issue on WLC, it is not an hardware issue that require RMA, We can still upgrade the WLC to fixed code. And i don't see single RMA attached to this defect
Example of bug that require WLC RMA. It is not reoccuring so you don't find any external info.
01-09-2014 02:42 PM
I agree with you.
What I wanted to say is certain software bugs only applicable to particular harware versions like in this case. Did not try to say RMA is the solution
Rasika
01-09-2014 02:51 PM
Sure. By the way most of the older AireOS releases will be deferred due to this bug within a week, field notice will be sent out.
01-09-2014 06:46 AM
post stack trace of the crash, need stack trace to get clue, sometimes that also does not help and require coredump of the crash. 7.4.121.0 or 7.4.111.X may have fix, if its an known bug.
01-10-2014 01:53 AM
What I find strange is that all our 5508 controllers rebooted at the same time. I will schedule an upgrade on them all to the latest version
01-10-2014 01:55 AM
Go for the 7.4.121.0 (7.4MR2). Also ensure that your FUS upgraded to 1.7.0.0 as well.
Rasika
01-15-2014 12:18 PM
Hi sprocket10,
I'm having the same issue. I have 2 WLC 5508 (HA) running v7.4.110.0. Since September, never had any reboot problem until this week.
First, my primary WLC rebooted. Today, both WLC rebooted around the same time.
Have you had the chance to upgrade and did that fix the problem ?
Thx
Tony
01-19-2023 12:36 AM
How do you run the Cisco crash analyser? Or access the crashinfo file, on the standby member of a HA pair of controllers?
The web interface is only available on the active member
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