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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


Description (partial)

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.

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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