10-10-2019 11:21 PM - edited 07-05-2021 11:07 AM
Hello,
I found out that our WLC 5508 rebooted and/or crashed several days ago and the reason was due to Reaper Reset: Task "wipsTask" taking too much cpu: 99%. Attached is the complete crash log of our WLC. I bumped into this thread saying this issue might be persisting on WLC with 8.0.x product version. Some are suggesting to downgrade it to 7.6.
Just to add, I opened a discussion few days ago regarding Random APs getting high packet loss and latency. I was advised to upgrade it to higher version. I don't know if thesetwo issues are related to each other. If anyone can advise me which version I should upgrade/downgrade into, it will be much of help.
This is a production WLC so any comments and/or suggestions are wanted. Thanks in advance.
Manufacturer's Name.............................. Cisco Systems Inc. Product Name..................................... Cisco Controller Product Version.................................. 8.0.140.0 Bootloader Version............................... 1.0.20 Field Recovery Image Version..................... 7.6.95.16 Firmware Version................................. FPGA 1.7, Env 1.8, USB console 2.2 Build Type....................................... DATA + WPS System Name...................................... <withheld> System Location.................................. System Contact................................... System ObjectID.................................. 1.3.6.1.4.1.9.1.1069 Redundancy Mode.................................. Disabled IP Address....................................... 172.17.0.10 IPv6 Address..................................... :: Last Reset....................................... Software reset System Up Time................................... 11 days 20 hrs 20 mins 34 secs System Timezone Location......................... System Stats Realtime Interval................... 5 System Stats Normal Interval..................... 180
10-11-2019 01:07 AM
- I don't recommend downgrading to 7.x which is very old. Consider upgrading to the last version of the 5508 (currently available).
M.
10-11-2019 01:19 AM
10-11-2019 01:27 AM
Hi Leo.
Looks like it's currently disabled. My bad. Should I enable it? I only see the Controller Crash Info on WLC's GUI being useful at this time.
(Cisco Controller) >show coredump summary Core Dump is disabled Core Dump file on flash: SW Version....................................... 8.0.140.0 Time Stamp....................................... Sun Sep 29 17:33:26 2019 File Size........................................ 82515870 File Name Suffix................................. _8.0.140.0_BLVMNL-MW-WLC_1569778406.gz
10-11-2019 03:56 AM
10-15-2019 06:49 AM
I have this same issue, and I have a coredump. Not a pile of info there. My crash file shows a reaper reset, wipsTask taking too much CPU while software Watchdog is disabled.
Sys Name: 5508-A
Model: AIR-CT5508-K9
Version: 8.3.133.0
Timestamp: Fri Oct 11 03:40:19 2019
SystemUpTime: 30 days 5 hrs 19 mins 13 secs
pid: 5397
TID: 1485665088
Task Name: wipsTask
Reason: Reaper Reset
Analysis of Failure:
Software was stopped by the reaper for the following reason:
Reaper Reset: Task "wipsTask" taking too much cpu: 95%, (user 21%, system 73%) while SW Watchdog is disabled
(Cisco Controller) >show coredump summary
Core Dump upload is enabled
FTP Server IP.................................... 10.2.8.164
FTP Filename..................................... <<ommitted>>
FTP Username..................................... cisco
FTP Password..................................... *********
Core Dump file on flash:
SW Version....................................... 8.3.133.0
Time Stamp....................................... Fri Oct 11 03:45:26 2019
File Size........................................ 38317276
File Name Suffix................................. _8.3.133.0_5508-A_1570783526.gz
Data Path Core Dump file on flash:
SW Version....................................... N/A
Time Stamp....................................... Fri Oct 11 03:45:26 2019
File Size........................................ 38317276
File Name Suffix................................. NoInfo_1570783526.gz
(Cisco Controller) >show coredump
Incorrect usage. Use the '?' or <TAB> key to list commands.
(Cisco Controller) >show coredump ?
summary Displays Core Dump Summary
10-15-2019 07:26 AM
10-15-2019 07:34 AM
10-15-2019 08:19 AM
10-15-2019 08:21 AM
10-15-2019 07:16 PM
Your version is 8.3.x and faced the same issue as mine. Hmmm. That gives me the only reason to upgrade it to the latest version, 8.5.151.0. Though I had to buy new set of APs since some are not supported by this release.
I hope it solves my issue. Still need to present this to the management.
Thanks!
10-15-2019 07:34 PM
10-15-2019 11:56 PM
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