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Cisco Bug: CSCtb33524 - Crash due to Corrupted magic chunk "Read/Write Loc"

Last Modified

Jan 28, 2017

Products (1)

  • Cisco IOS

Known Affected Releases

12.4(24)T

Description (partial)

Symptom:
A C2811 has crashed due to memory corruption.

Conditions:
This has been observed on C2811 running 12.4(24)T IOS:

%SYS-2-CHUNKBADROOTCHUNKPTR: Bad root chunk pointer in chunk header, chunk 0x487D67D8  data 0x487D700C root chunk ptr 0x4032F110 -Process= "Check heaps", ipl= 0, pid= 5,  -Traceback= 0x400AF470z 0x400AF7C4z 0x400AB890z 0x431FC4B8z 0x431FC49Cz
chunk_diagnose, code = 4
chunk name is Read/Write Loc

current chunk header = 0x487D6FFC
data check, ptr = 0x487D700C

next chunk header = 0x487D70F0
data check, ptr = 0x487D7100

previous chunk header = 0x487D6F08
data check, ptr = 0x487D6F18
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