Guest

Preview Tool

Cisco Bug: CSCtc55734 - IOS 12.4(25b)M0.6 crashes router at boot-time with Breakpoint exception

Last Modified

Feb 06, 2017

Products (1)

  • Cisco IOS

Known Affected Releases

12.4(25b)M0.6

Description (partial)

Symptom:
========
An IOS router crashes at boot-time with a Breakpoint exception error:

program load complete, entry point: 0x80010000, size: 0x11cdd28
Self decompressing the image : ############################################################################################### [OK]


System received a divide by zero exception


 : Breakpoint exception, CPU signal 8, PC = 0x61530874



--------------------------------------------------------------------
   Possible software fault. Upon reccurence,  please collect
   crashinfo, "show tech" and contact Cisco Technical Support.
--------------------------------------------------------------------


-Traceback= 
$0 : 00000000, AT : 62330000, v0 : 00000001, v1 : 00000000
a0 : 00000000, a1 : 00000000, a2 : 00000000, a3 : 00000000
t0 : 00000000, t1 : 00000000, t2 : 00000000, t3 : 6232C6A4
t4 : 00000000, t5 : 62470000, t6 : 00000000, t7 : FEED0000
s0 : 00000000, s1 : 00000000, s2 : 62660000, s3 : 27BD0000
s4 : 60010000, s5 : 60010000, s6 : 62170000, s7 : 0020002F
t8 : 00000001, t9 : 00000077, k0 : 30408001, k1 : B0020000
gp : 62334450, sp : 8000FD90, s8 : 68000001, ra : 613BFD44
EPC  : 61530874, ErrorEPC : BFD85CFC, SREG     : 34008003
MDLO : FFFFFFFF, MDHI     : 00000001, BadVaddr : 7ADCBEFD
DATA_START : 0x61543050
Cause 00000024 (Code 0x9): Breakpoint exception


Conditions:
===========
This behaviour is observed on any Cisco IOS router installed with IOS 
12.4(25b)M0.6.  All feature-sets are affected.
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.