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Cisco Bug: CSCun91844 - Memory corruption because of IPSLA slaOperTypeCompCreate

Last Modified

Feb 04, 2017

Products (1)

  • Cisco ASR 1000 Series Aggregation Services Routers

Known Affected Releases

15.2(2)E

Description (partial)

Symptom:
ASR crashed because of memory corruption. After decoding the caller_pc and analyzing the logs  found that corruption happened because of IP SLA. Till now router crashed once.

Conditions:
Right before this crash customer ran "show IP SLA summary" as we can see below:
CMD: 'sh ip sla sum' 13:39:10 GMT Wed Feb 5 2014
000753: Feb  5 13:39:55: %SYS-2-CHUNKBADROOTCHUNKPTR: Bad root chunk pointer in chunk header, chunk 0x40C72524  data 0x40C62500 root chunk ptr 0x2061676F -Process= "Check heaps", ipl= 0, pid= 9
-Traceback= 1#d926bacda44181d75f29b27b78fdbf53  :10000000+E710F0 :10000000+E7149C :10000000+288F790 :10000000+28903A0 :10000000+28B385C
chunk_diagnose, code = 4
chunk name is IP SLAs Oper Co

current chunk header = 0x40C624F0
data check, ptr = 0x40C62500

next chunk header = 0x40C66670
data check, ptr = 0x40C66680

previous chunk header = 0x40C5E370
data check, ptr = 0x40C5E380
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