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Cisco Bug: CSCul39031 - Crash seen at prepare_chunkdata() with Mace enabled on interface

Last Modified

Aug 28, 2020

Products (74)

  • Cisco IOS
  • Cisco 2951 Integrated Services Router
  • Cisco 881SRSTW Integrated Services Router
  • Cisco C892FSP Integrated Services Router
  • Cisco 892W Integrated Services Router
  • Cisco 888W Integrated Services Router
  • Cisco 812 CiFi Integrated Services Router
  • Cisco C897VA Integrated Services Router
  • Cisco 886VAG 3G Integrated Services Router
  • Cisco 1905 Serial Integrated Services Router
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Known Affected Releases

15.3(3)M

Description (partial)

Symptom:A cisco router may reload due to memory corruption. 

Unexpected exception to CPU: vector 1500, PC = 0x4E3206C , LR = 0x4E32004

SYS-2-CHUNKBADMAGIC: Bad magic number in chunk header, chunk 3A352E4  data 23587E60  chunkmagic 15A3C78B  chunk_freemagic 0 -Process= "MACE export", ipl= 0, pid= 3

Chunk memory corruption with this mace export which appears to be some interaction between netflow export and mace

 

!
flow monitor type mace MACE-MONITOR
record MACE-RECORD
exporter LIVEACTION-FLOWEXPORTER
cache timeout update 5
cache entries 65000

Conditions:Router is configured for MACE
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