Re: Router 827 memory SegV problem

merrikhipm · ‎12-03-2004

hello

I can't seem to save any configuration I make to the my router for some reason.... can anybody help me.

the error reacts when I type 'write'.

=== Flushing messages (00:01:00 UTC Mon Mar 1 1993) ===

Queued messages:

Data TLB Miss Exception (0x1200)!

CPU Register Context:

VEC = 1200 PC = 8066F100 MSR = 9032 CR = 53000000

LR = 801673A4 CTR = 80109BB

R0 = 0 R1 = 80CD63E8 R2 = 80980000 R3 = 80B1C074

R4 = 7F5A76B0 R5 = 0 R6 = 0 R7 = 0

R8 = 5 R9 = 1 R10 = 80B1C074 R11 = 0

R12 = 93000000 R13 = FFF31FC8 R14 = 0 R15 = 0

R16 = 0 R17 = 0 R18 = FFFFFFFF R19 = 80980000

R20 = 6 R21 = 809C3F64 R22 = 0 R23 = 0

R24 = 0 R25 = 80A369B6 R26 = 0 R27 = 0

R28 = 80A35628 R29 = 80990000 R30 = 80A58974 R31 = 80A58988

Stack trace:

PC = 8066F100, SP = 80CD63E8

Frame 00: SP = 80CD63E8 RA = 80167980

Frame 01: SP = 80CD6410 RA = 8011F77C

Frame 02: SP = 80CD6440 RA = 8006B2A0

Frame 03: SP = 80CD6460 RA = 80096C18

Frame 04: SP = 80CD6480 RA = 8008B720

Frame 05: SP = 80CD6490 RA = 80099A30

Frame 06: SP = 80CD64E0 RA = 8011A09C

Šrame 07: SP = 80CD6558 RA = 0

*** System received a SegV exception ***

signal= 0xb, code= 0x1200, context= 0x809dabf0

PC = 0x8066f100, Vector = 0x1200, SP = 0x80cd63e8

System Bootstrap, Version 12.1(1r)XB1, RELEASE SOFTWARE (fc1)

C827 platform with 16384 Kbytes of main memory

Prashanth Krishnappa · ‎12-03-2004

It appears you are running into the following bug

http://www.cisco.com/cgi-bin/bugtool/onebug.pl?bugid=CSCee41831

This bug is still being worked on. As a workaround, back up your config, issue "wr erase" command on router and reload it afterwards.

The router should come up with no config, apply the config which you saved and you should be able to issue a wr mem.

Hope this helps

merrikhipm · ‎12-03-2004

Thank you for your help prkrishn

However I've already tried that and im in the midst of doing it again. I have a backup of the IOS from a long time ago that I keep uploading through xmodem and it still seems to make the same error.

Anythoughts as to how I can get another IOS without being a registered member?

thanks again for your help

merrikhipm · ‎12-09-2004

can this problem also be linked with the ROMMON?

so if I do indeed get another IOS the same problem will continue.

-The Stack-

Cisco Internetwork Operating System Software

IOS (tm) C820 Software (C820-Y6-M), Version 12.1(5)YB3, EARLY DEPLOYMENT RELEASE

SOFTWARE (fc1)

TAC:Home:SW:IOS:Specials for info

Compiled Thu 10-May-01 11:31 by ealyons

% Type "show ?" for a list of subcommands

Router#show stack

Minimum process stacks:

Free/Size Name

5700/6000 Autoinstall

10404/12000 Setup

11524/12000 BootP Resolver

4088/6000 DNS Snoop

9804/12000 Init

Interrupt level stacks:

Level Called Unused/Size Name

1 0 9000/9000 ADSL Dying Gasp Interrupt

4 91032 8524/9000 MPC860 CPM INTERRUPT

5 7157 8528/9000 ADSL Ctrl Interrupt

7 83570 8900/9000 TIMER INTERRUPT

System was restarted by error - a SegV exception, PC 0x8066F100 at 18:27:05 UTC

Tue Jul 6 2004

C820 Software (C820-Y6-M), Version 12.1(5)YB3, EARLY DEPLOYMENT RELEASE SOFTWARE

(fc1)

TAC:Home:SW:IOS:Specials for info

Compiled Thu 10-May-01 11:31 by ealyon (current version)

Image text-base: 0x80013170, data-base: 0x80672254

Stack trace from system failure:

FP: 0x80CD7EE8, RA: 0x8016735C

FP: 0x80CD7F10, RA: 0x80167980

FP: 0x80CD7F40, RA: 0x8011F77C

FP: 0x80CD7F60, RA: 0x8006B2A0

FP: 0x80CD7F80, RA: 0x80096C18

FP: 0x80CD7F90, RA: 0x8008B720

FP: 0x80CD7FE0, RA: 0x80099A30

FP: 0x80CD8058, RA: 0x8011A09C

***************************************************

******* Information of Last System Crash **********

***************************************************

and the debug from nvram -->

=== Flushing messages (00:06:49 UTC Mon Mar 1 1993) ===

Queued messages:

00:06:49: %SYS-3-LOGGER_FLUSHING: System pausing to ensure console debugging out

put.

00:06:48: %NVRAM: nv_check_getptr()- nv_exec_ipcrc() fails, nv->magic = nv->text

size = 0

00:06:48: NVRAM: nv->magic != NVMAGIC, invalid nvram.

00:06:48: NVRAM: invalid nvram, but return(1).

00:06:49: %NVRAM: nv_check_getptr()- nv_exec_ipcrc() fails, nv->magic = nv->text

size = 0

00:06:49: NVRAM: nv->magic != NVMAGIC, invalid nvram.

00:06:49: NVRAM: invalid nvram, but return(1).

Data TLB Miss Exception (0x1200)!