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Cisco Bug: CSCur56103 - Wism2 Active Silent crash

Last Modified

Sep 17, 2019

Products (1)

  • Cisco 5500 Series Wireless Controllers

Known Affected Releases

7.6(130.204) 8.0(102.25) 8.0(102.34) 8.0(102.45) 8.1(10.100) 8.1(10.48) 8.1(10.58)

Description (partial)

Symptom:
WISM2 Active Silent crash

Conditions:
Active silent crash and switching to Backup. The system came up with 80% and active crashed within 1hour.
Mbuf memory was going full

!!!!! Watchdog detected LOCKUP !!!!!
LKCD: Dumping from interrupt handler!
LKCD: sending IPI to other cpus...
LKCD: done waiting: 6 cpus not responding
LKCD: Switch I/O scheduler from cfq to noop
LKCD: Dumping to block device (8,4) on CPU 10 ...
...
...
...(Refer to the attachment)

EXPECTED BEHAVIOR:
==================
No Crash


CUSTOMER IMPACT:
================
Crash

SYSTEM CONFIGURATION (Profile TB, Load, TSIM Load, etc):
========================================================
HealthCare Profile-TB-Jian-22 running 80%traffic
Load: 8.1.10.48


TEST CASE / STEPS TO REPRODUCE:
===============================
Running 80% baseline which includes 
-webauth https @ 10/sec
-unclassified traffic
-classified 1gig traffic from on 11 different applications
-igmp joins @ 100/sec
-bonjour Advt @ 100/sec
-bonjour Queries @ 10/sec


TS, SS or OIB? Why?
===================
SS, due to crash seen once 


HOW MANY TIMES SEEN/EASE OF REPRODUCIBILITY:
============================================
Once
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