Traceback on WLC 3504 when connected to a Nexus FEX C2232TM

[patoberli]

Hi all

Just wanted to inform you, that my WLC 3504 running 8.5.110.0 always crashes and create a traceback while it's connected to a Nexus FEX C2232TM. It doesn't crash when it's connected to a Catalyst 2960G or 2960CX. On both devices are the ports configured as a trunk.

I've used the Port5 on the WLC, configured to 1 Gbps.

The WLC booted up completely and after around 2 minutes crashed and reloaded.

I can probably post a crash dump if required.

[Scott Fella]

Can you attach the dump. Did you also open a TAC case to get a bug filed?

[patoberli]

I can't open TACs without contacting my reseller and paying for it, so I'm not going to open one on my own.
I've attached the two dump files.

[patoberli]

And here the second file (for whatever reason, I can't find the attach files function anymore).

(Cisco Controller) >show coredump summary

 Core Dump upload is disabled

 Core Dump file on flash:

SW Version....................................... 8.5.110.0
Time Stamp....................................... Fri Dec 22 11:09:22 2017
File Size........................................ 12906543
File Name Suffix................................. _8.5.110.0_wlc-3504-1_1513937362.gz

 Data Path Core Dump file on flash:

SW Version....................................... 8.5.110.0
Time Stamp....................................... Fri Dec 22 11:10:27 2017
File Size........................................ 4508962
File Name Suffix................................. _8.5.110.0_wlc-3504-1_10_10_17_2017_12_22.gz

(Cisco Controller) >

[patoberli]

And here the logfile from the crash(es).

[Scott Fella]

Thanks!

[Leo Laohoo · Accepted solution]

CSCuv03963

[patoberli]

Thanks. Not sure if it's the same bug, as the 8.5 version is nowhere mentioned, but I also can't see everything in the bugsearch tool.

[Leo Laohoo]

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@patoberli wrote:
Not sure if it's the same bug, as the 8.5 version is nowhere mentioned, but I also can't see everything in the bugsearch tool.

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The information listed in each bug has "questionable" detail.

However, cast your eyes on the number of Support Cases associated to this bug.  As of today, it stands at 66.  

I'd say you've hit this bug.