topic Crash of accesspoint, where to find crashinfo? in Wireless

Crash of accesspoint, where to find crashinfo?

patoberli — Sun, 04 Jul 2021 02:56:30 GMT

One of my AIR-CAP3502I-E-K9 just crashed. It rebooted itself and came back to service.

In the logs I see this here:

*Mar 1 00:00:09.669: *** CRASH_LOG = YES

*Mar 1 00:00:09.971: soap_extern_intr_dispatch: no handler for UIC2 intrno 12 level 4
*Mar 1 00:00:10.270: soap_extern_intr_dispatch: no handler for UIC2 intrno 12 level 4Security Core found. (no idea if this is important)

*Mar 11 07:17:12.683: %CAPWAP-3-ERRORLOG: Received a upload request from controller for type 1

*Mar 11 07:17:21.966: %CAPWAP-3-ERRORLOG: capwap_data_upload_proc: copy flash:crashinfo_20110311-071518 to capwap:/crashinfo complete

Now a dir flash: doesn't show a crashfile anymore:

3502AGN-1100a-2#dir flash:
Directory of flash:/

    2 -rwx        6168 Mar 11 2011 07:37:08 +00:00 private-multiple-fs
    3 -rwx        1471 Jan 27 2011 12:16:00 +00:00 event.log
    4 -rwx         232 Mar 11 2011 07:17:12 +00:00 env_vars
    5 drwx         512 Jan 27 2011 12:16:00 +00:00 ap3g1-k9w8-mx.124-23c.JA
   39 -rwx          64   Mar 1 2002 00:14:21 +00:00 sensord_CSPRNG1
   40 -rwx          64   Mar 1 2002 00:14:21 +00:00 sensord_CSPRNG0
    9 drwx         128   Mar 1 2002 00:12:42 +00:00 ap3g1-rcvk9w8-mx

31481856 bytes total (23710208 bytes free)

and a show crash shows:

3502AGN-1100a-2#sh crash
         ==== Last Crash Saved in OCM ====
   Stacks:
Last reset from Exception!
   SP: 0x02688338 PC: 0x02692358
   SP: 0x02688398 PC: 0x00498490
   SP: 0x026883C8 PC: 0x0047F3BC
   SP: 0x02688480 PC: 0x0048A0A0
-Traceback= 0x02692358 0x00498490 0x0047F3BC 0x0048A0A0
   Registers:
   exception counter: 1431677610 Vector 0x00001400 CPU_TYPE 0x00001302
   R0 0x00000000
   PC 0x00497164
   MSR 0x00029200
   CR 0x42000022
   LR 0x00498490
   CTR 0x0007497C
   XER 0x00000000
   ESR 0x00000000
   BEAR 0x00000000
   DEAR 0x0B0D0B0D

==== Last Reset Saved in OCM ====
3502AGN-1100a-2#

Anybody knows where I could find the complete crashlog and if this is maybe a known bug? It's not in the configured TFTP folder.

The controller is running 7.0.98.0.

Thanks

Pato

Re: Crash of accesspoint, where to find crashinfo?

Nicolas Darchis — Fri, 11 Mar 2011 08:23:52 GMT

If we assume that you are facing a known bug that is fixed an engineering special of 7.0, you would need anyway to open a tac case. And if it's a new bug ... you should also open one 🙂

Re: Crash of accesspoint, where to find crashinfo?

patoberli — Fri, 11 Mar 2011 08:51:51 GMT

Found the crashfile on the controller (under Management -> Tech Support -> AP Crash Log)

So far it's rare enough that an engineering build isn't worth the effort of upgrading my 4 controllers.

It happend on 3 (of +80) APs in the last 5 months, that's so far ok.

But I still hope that Cisco will soon release a new build, because of some DHCP bugs in the current build.

Re: Crash of accesspoint, where to find crashinfo?

Leo Laohoo — Fri, 11 Mar 2011 22:38:02 GMT

Been there. Done that.

I have about >250 units of 3502 and I have about <10 units crashing. All show the same symptoms:

1. One of the two radios would "disappear". I'm not saying it would go down but the 2nd radio would not be there in the interface tab of the WLC.

2. The presence of the "sensord_CSPRNGn" file(s) and/or crashinfo.

My only solution was to reload the AP's and everything comes good.