Router Restarted C-2500 ?????

[afzaalq007]

Hi ,,

I have seen a problem on my router while i was working on it .. suddenly restared and error have seen in show verion is router restarted due the bus error at PC in .....xbb123xcbd and then address of the PC.i think in hexa.

i want to ask about it and how we deal with is error..

Thanks

[Kevin Dorrell]

Bus error is invariably due to a bug. The problems you face now are (1) How to identify the bug? (2) Is there a more recent IOS that fixes the bug, bearing in mind that the 2500 was EoL a long time ago? (3) Is there any way you can work around the bug, e.g. by avoiding certain configuration options?

You need to tackle (1) first. Do you have the exact text of the error message? Is the problem repeatable, and if so under under any identifiable conditions? Is there any traceback information or a crashinfo file in he flash? With that information, you might find it in the bug database.

Kevin Dorrell

Luxembourg

[afzaalq007]

Hi

thanks for the Ans....

plz chek the msg i am geeting on router sh ver...

and suggest what are the reasons behind this.. how we troulshoot this..

Msg is !!!!!

"System restarted by bus error at PC 0x30D41B4, address 0x149E12 at 10:30:58 GMT

Tue Jul 11 2006"

Thanks

[afzaalq007]

Hi,,

I have read ur ans but there is confusion ,,

Can plz tell me in little bit detial.. i have pasted the msg fome my router in the above reply.

Thanks

[leonvd79]

What did you change to the software configuration before the error occured?

What software version are you currently using?

Post "show version" output to start with.

--Leon

[afzaalq007]

Hi,

I havent change any thing my router .. it was just routine activity for cheking router log.. and counter's

below is sh ver !!!!

Cisco Internetwork Operating System Software

IOS (tm) 3000 Software (IGS-IR-L), Version 11.1(10), RELEASE SOFTWARE (fc1)

Copyright (c) 1986-1997 by cisco Systems, Inc.

Compiled Mon 10-Mar-97 16:05 by dschwart

Image text-base: 0x030286F4, data-base: 0x00001000

ROM: System Bootstrap, Version 11.0(10c), SOFTWARE

ROM: 3000 Bootstrap Software (IGS-BOOT-R), Version 11.0(10c), RELEASE SOFTWARE (

fc1)

RouterXXX uptime is 2 hours, 33 minutes

System restarted by bus error at PC 0x30D41B4, address 0x149E12 at 10:30:58 GMT

Tue Jul 11 2006

System image file is "flash:IR11110", booted via flash

cisco 2520 (68030) processor (revision M) with 14336K/2048K bytes of memory.

Processor board ID 06973452, with hardware revision 00000003

Bridging software.

X.25 software, Version 2.0, NET2, BFE and GOSIP compliant.

Basic Rate ISDN software, Version 1.0.

1 Ethernet/IEEE 802.3 interface.

2 Serial network interfaces.

2 Low-speed serial(sync/async) network interfaces.

1 ISDN Basic Rate interface.

32K bytes of non-volatile configuration memory.

8192K bytes of processor board System flash partition 1 (Read ONLY)

8192K bytes of processor board System flash partition 2 (Read/Write)

Configuration register is 0x2102

Thanks

[afzaalq007]

hi,

waiting for ur suggstion's

Thanks

[leonvd79 · Accepted solution]

Hello,

Issue the "show region" command. Verify if the address "0x149E12" is referenced as a valid region. In case it does match up it means the router received a bus error while accessing valid memory.

This could mean you are facing hardware problems. If the address does not match the region it could have been a software bug. Try upgrading to a more recent IOS that supports 8/8.

HTH

--Leon

* Please rate posts.

[afzaalq007]

hi

this is the out put of "show region"

Region Manager:

Start End Size(b) Class Media Name

0x00000000 0x00DFFFFF 14680064 Local R/W main

0x00001000 0x00027ABB 158396 IData R/W main:data

0x00027ABC 0x0005E377 223420 IBss R/W main:bss

0x0005E378 0x00DFEFFF 14290056 Local R/W main:heap

0x00DFF000 0x00DFFFFF 4096 Local R/W main:flhlog

0x00E00000 0x00FFFFFF 2097152 Iomem R/W iomem

0x03000000 0x03FFFFFF 16777216 Flash R/O flash

0x030286F4 0x03492383 4627600 IText R/O flash:text

plz chk anf suggest whether this valid or not in incase of valid than wht you suggest !!!!!

Thanks

[afzaalq007]

hi

i have chked sending u file attached for reffernce it more clear ,,,

plz ckhed sh region and suggest

waiting for ur response ????

Thanks

[leonvd79]

When you issue the following command:

Router#show region address 0x149E12

What does the router return? If the referenced address does not return a valid process in memory it's likely software malfunctioning. If it is a valid process in memory it could be that your hardware is showing defects.

So basically it comes down toeither your hardware or software that is being the culprit in this case. The C2500 platform is not supported by Cisco. I would recommend to upgrade if this is a production router.

--Leon

[afzaalq007]

Hi

Thanks Leon for the Ans

this is the output fopr the command it shows the mem following segment (heap).

plz ckh...

XXXHI#sh region

Region Manager:

Start End Size(b) Class Media Name

0x00000000 0x00DFFFFF 14680064 Local R/W main

0x00001000 0x00027ABB 158396 IData R/W main:data

0x00027ABC 0x0005E377 223420 IBss R/W main:bss

0x0005E378 0x00DFEFFF 14290056 Local R/W main:heap

0x00DFF000 0x00DFFFFF 4096 Local R/W main:flhlog

0x00E00000 0x00FFFFFF 2097152 Iomem R/W iomem

0x03000000 0x03FFFFFF 16777216 Flash R/O flash

0x030286F4 0x03492383 4627600 IText R/O flash:text

XXXXXI#show region address 0x149E12

Address 0x00149E12 is located physically in :

Name : heap

Class : Local

Media : R/W

Start : 0x0005E378

End : 0x00DFEFFF

Size : 0x00DA0C88

Thanks for the replying .