CHUNKBADMAGIC???

[riju]

My IOS is 12.3(14)T1. I did a ping with large size packets(20000-35000). Ping result is good, but got some messages:

000413: Apr 25 14:29:50.951 XXX: %SYS-2-CHUNKBADMAGIC: Bad magic

number in chu

nk header, chunk 0 data 443E49B0 chunkmagic 0 chunk_freemagic

43CCD478

-Process= "<interrupt level>", ipl= 4

-Traceback= 0x40AA598C 0x400BA458 0x402F8D44 0x40042968 0x40042C4C

0x4001031C 0x

400116BC

000414: Apr 25 14:30:01.047 XXX: %SYS-2-CHUNKBADMAGIC: Bad magic

number in chu

nk header, chunk 0 data 443E4898 chunkmagic 0 chunk_freemagic

43CD1A28

-Process= "<interrupt level>", ipl= 4

-Traceback= 0x40AA598C 0x400BA458 0x402F8D44 0x40042968 0x40042C4C

0x4001031C 0x

400116BC

000415: Apr 25 14:30:14.247 XXX: %SYS-2-CHUNKBADMAGIC: Bad magic

number in chu

nk header, chunk 0 data 443E4898 chunkmagic 43CCF3D4

chunk_freemagic 43CCECDC

-Process= "<interrupt level>", ipl= 4, pid= 74

-Traceback= 0x40AA598C 0x400BA458 0x402F8D44 0x40042968 0x40042C4C

0x4001031C 0x

400116BC

000416: Apr 25 14:30:27.807 XXX: %SYS-2-CHUNKBADMAGIC: Bad magic

number in chu

nk header, chunk 0 data 443E4898 chunkmagic 43CD2818

chunk_freemagic 43CCF058

-Process= "<interrupt level>", ipl= 4, pid= 74

-Traceback= 0x40AA598C 0x400BA458 0x402F8D44 0x40042968 0x40042C4C

0x4001031C 0x

400116BC

What does this means?

[Richard Burts]

I had an issue which included error messages about CHUNKBADMAGIC on a router running the T train of 12.3 code. I opened a case with TAC. They agreed that it was some kind of bug in IOS. We never were quite sure what triggered it. They advised that I change IOS release levels. I suspect that it is a similar issue in your case.

HTH

Rick

[riju]

Can you please give your case number, so I can refer to that also. My IOS is 12.3(14)T1. Which was the IOS you had repoerted to TAC?

[Richard Burts]

My TAC case was 600459735. The TAC engineer gave me two bug IDs that he thought were related: CSCee65576 and CSCee57895.

For us the problem stopped when we upgraded to 12.3(8)T4

HTH

Rick