show stacks

show stacks

To monitor the stack usage of processes and interrupt routines, use the show stacks command in EXEC mode.

show stacks

Syntax Description This command has no arguments or keywords.

Command Modes

Command History

EXEC

Release

Modification

10.0

This command was introduced.

 

 

12.2(33)SRA

This command was integrated into Cisco IOS Release 12.2(33)SRA.

 

 

Usage Guidelines

The display from this command includes the reason for the last system reboot. If the system was reloaded

 

 

 

 

because of a system failure, a saved system stack trace is displayed. This information is of use only to

 

 

 

 

your technical support representative in analyzing crashes in the field. It is included here in case you

 

 

 

 

need to read the displayed statistics to an engineer over the phone.

 

The following is sample output from the show stacks command following a system failure:

Examples

 

 

 

 

Router# show stacks

 

 

 

 

 

 

Minimum process stacks:

 

 

 

 

 

 

Free/Size

Name

 

 

 

 

 

 

 

652/1000

Router Init

 

 

 

 

 

 

726/1000

Init

 

 

 

 

 

 

 

744/1000

BGP Open

 

 

 

 

 

 

686/1200

Virtual Exec

 

 

 

 

 

 

Interrupt level stacks:

 

 

 

 

 

 

Level

Called Free/Size

Name

 

 

 

 

1

0 1000/1000

env-flash

 

 

 

 

3

738

900/1000

Multiport Communications Interfaces

 

 

 

 

5

178

970/1000

Console UART

 

 

 

 

System was restarted by bus error at PC 0xAD1F4, address 0xD0D0D1A

 

 

 

 

GS Software (GS3), Version 9.1(0.16), BETA TEST SOFTWARE

 

 

 

 

Compiled Tue 11-Aug-92 13:27 by jthomas

 

 

 

 

Stack trace from system failure:

 

 

 

 

FP: 0x29C158, RA: 0xACFD4

 

 

 

 

 

 

FP: 0x29C184, RA: 0xAD20C

 

 

 

 

 

 

FP: 0x29C1B0, RA: 0xACFD4

 

 

 

 

 

 

FP: 0x29C1DC, RA: 0xAD304

 

 

 

 

 

 

FP: 0x29C1F8, RA: 0xAF774

 

 

 

 

 

 

FP: 0x29C214, RA: 0xAF83E

 

 

 

 

 

 

FP: 0x29C228, RA: 0x3E0CA

 

 

 

 

 

 

FP: 0x29C244, RA: 0x3BD3C

 

 

 

 

 

Cisco IOS Configuration Fundamentals Command Reference

 

 

 

 

 

 

 

 

 

 

 

 

 

CF-892

 

 

 

 

 

July 2008

 

 

 

 

 

 

 

 

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Cisco Systems 12000 series manual Show stacks, CF-892, Router# show stacks