[c-nsp] "debug ip routing" crashed 3750E

[Antonio Soares]

Group,

Well, today i was troubleshooting a routing problem and i enabled "debug ip routing" as i do many times. But this time i got a very
unpleasant surprise:

++++++++++
XXX uptime is 1 minute
System returned to ROM by bus error at PC 0x29CA3C, address 0x0
System image file is "flash:c3750e-universal-mz.122-35.SE5/c3750e-universal-mz.122-35.SE5.bin"
++++++++++

I was connected via telnet. I issued the "terminal monitor" to see what was going on and i just saw my telnet connection going down
:( I didn't see a single flaping route !

I already have a TAC case for this but i would to share this information and also get some comments from the group.

The process related with this must be EIGRP:

(...)
---- Partial decode of process block ----

Pid 249: Process "IP-EIGRP(0): PDM ^D7'XIP-EIGRP(0)"
stack 0x4A272E4  savedsp 0x2A66D4C 
Flags: analyze prefers_new process_arg_valid 
Status     0x00000000 Orig_ra   0x00000000 Routine    0x00000000 Signal 0
Caller_pc  0x00000000 Callee_pc 0x00000000 Dbg_events 0x00000000 State  0
Totmalloc  3837470844   Totfree   3185315280   Totgetbuf  2268    
Totretbuf  0          Edisms    0x0        Eparm 0x0       
Elapsed    0x2F85F52  Ncalls    0x1EF89E84 Ngiveups 0x3AA39   
Priority_q 3          Ticks_5s  0          Cpu_5sec   0        Cpu_1min 172
Cpu_5min   176        Stacksize 0x2328     Lowstack 0x2328    
Ttyptr     0x2A45C80  Mem_holding 0x67E10    Thrash_count 0
Wakeup_reasons      0x0FFFFFFF  Default_wakeup_reasons 0x0FFFFFFF
Direct_wakeup_major 0x00000000  Direct_wakeup_minor 0x00000000

Regs R14-R31, CR, PC, MSR at last suspend; R3 from proc creation:
     R3 : 00000000  R14: 00B7040C  R15: 00000000  R16: 00000000  R17: 00000000 
     R18: 00000000  R19: 00000000  R20: 00000000  R21: 04A7C068  R22: 0480D678 
     R23: 04A7A2FC  R24: 04A7A144  R25: 00000013  R26: 00000000  R27: 00000000 
     R28: 04E49F90  R29: 03C756E4  R30: 00000000  R31: 00000000  CR : 33000059 
(...)



Thanks.

Regards,
 
Antonio Soares, CCIE #18473 (R&S/SP)
amsoares at netcabo.pt