Table Of Contents

Process and Memory Management Debug Commands on Cisco IOS XR Software

debug dumper

debug placement

Process and Memory Management Debug Commands on Cisco IOS XR Software

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This chapter describes the commands used to debug process and memory management on Cisco IOS XR software.

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Caution Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.

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debug dumper

To enable debugging of the memory dumper, use the debug dumper command in EXEC mode. To turn off the debugging output, use the no form of this command.

debug dumper {kernel {all | min} | process [location node-id]}

no debug dumper {kernel [all | min] | process [location node-id]}

Syntax Description

kernel	Kernel dumper debug.
all	Displays full kernel debug information.
min	Displays minimal debug information.
process	Process core dumper resource manager debug.
location node-id	(Optional) Displays memory dumper debugging information for a specified location. The node-id argument is entered in the rack/slot/module notation.

Defaults

No default behavior or values

Command Modes

EXEC

Command History

Release	Modification
Release 2.0	This command was introduced on the Cisco CRS-1.
Release 3.0	No modification.
Release 3.2	This command was supported on the Cisco XR 12000 Series Router.
Release 3.3.0	No modification.
Release 3.4.0	No modification.
Release 3.5.0	No modification.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. For detailed information about user groups and task IDs, see the Configuring AAA Services on Cisco IOS XR Software module of the Cisco IOS XR System Security Configuration Guide.

Debugging output is assigned high priority in the CPU process and, therefore, can affect system performance. For more information about the impact on system performance when using debug commands, refer to Using Debug Commands on Cisco IOS XR Software.

Task ID

Task ID	Operations
diag	read

Examples

The following example shows how to enable memory dumper debugging:

RP/0/RP0/CPU0:router# debug dumper kernel all

debug placement

To debug the process placement daemon, use the debug placement command in EXEC mode. To turn off debugging output, use the no form of this command.

debug placement {algorithm | all | config | edm | main | nodes | placement | programs | properties | typical}

no debug placement {algorithm | all | config | edm | main | nodes | placement | programs | properties | typical}

Syntax Description

algorithm	Displays placed algorithm information.
all	Displays all placed debugging.
config	Displays placed config information.
edm	Displays placed EDM information.
main	Displays placed main information.
nodes	Displays placed nodes information.
placement	Displays placed placement information.
programs	Displays placed programs information.
properties	Displays placed properties information.
typical	Displays typical placed debugging information (everything except edm and algorithm).

Defaults

No default behavior or values

Command Modes

EXEC

Command History

Release	Modification
Release 2.0	This command was introduced on the Cisco CRS-1.
Release 3.0	No modification.
Release 3.2	This command was supported on the Cisco XR 12000 Series Router.
Release 3.3.0	No modification.
Release 3.4.0	No modification.
Release 3.5.0	No modification.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. For detailed information about user groups and task IDs, see the Configuring AAA Services on Cisco IOS XR Software module of the Cisco IOS XR System Security Configuration Guide.

Debugging output is assigned high priority in the CPU process and, therefore, can affect system performance. For more information about the impact on system performance when using debug commands, refer to Using Debug Commands on Cisco IOS XR Software.

Task ID

Task ID	Operations
sysmgr	read

Examples

The following example shows how to enable process placement daemon debugging:

RP/0/RP0/CPU0:router# debug placement all