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Cisco Bug: CSCus28011 - chunk memory corruption: pak subblock chunk

Last Modified

Jan 24, 2017

Products (87)

  • Cisco IOS
  • Cisco 812 CiFi Integrated Services Router
  • Cisco C897VA Integrated Services Router
  • Cisco 2951 Integrated Services Router
  • Cisco 888W Integrated Services Router
  • Cisco 886VAG 3G Integrated Services Router
  • Cisco C892FSP Integrated Services Router
  • Cisco 819 Hardened Integrated Services Router
  • Cisco 1905 Serial Integrated Services Router
  • Cisco 886VA-CUBE Integrated Services Router
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Known Affected Releases

15.2(4)M6

Description (partial)

Symptom:
the device may crash as a result of a bad chunk magic

Dec 16 13:55:29.474: %SYS-2-CHUNKBADMAGIC: Bad magic number in chunk header, chunk 0  data 2000  chunkmagic 0  chunk_freemagic 0 -Process= "<interrupt level>", ipl= 3
-Traceback=
chunk_diagnose, code = 1
data (0x2000) not in mempool(0x3AD10008)
data(0x2000) not in any mempool
Corrupted magic value in in-use chunk 
chunk name is pak subblock ch

current chunk header = 0x1FF0
data check, ptr = 0x2000
bp->next(0x206C) not in any mempool
bp_prev(0x1F74) not in any mempool
========= Dump chunk = 0x1FF0 ======================

========= Dump chunk_next = 0x206C ======================

========== Dump chunk_previous = 0x1F74 =====================
============================================

Corrupted magic value in in-use chunk 

%Software-forced reload

Conditions:
N/A at the moment
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