Accessing Application Core Dumps - Dell C9000 Series Networking Configuration Manual

Accessing Application Core Dumps

Core dumps for an application crash are enabled by default. On the system, core dumps are generated and
stored in the local flash of the system's Control Processor CPU. To access an application core-dump file, you
must perform an FTP to the Control Processor CPU flash directory where the application core dump is stored
in the following formats:
• An application core dump generated from CP of the RPM:
f10Ch<Chassis ID>_rpm<0/1>_cp_<ProcessName>_<timestamp>.acore.gz
• An application core dump from RP application:
f10Ch<Chassis ID>_rpm<0/1>_rp_<ProcessName>_<timestamp>.acore.gz
• An application core dump from LP application:
f10Ch<Chassis ID>_lp<slot#>_<Process Name>_<timestamp>.acore.gz
• An application core dump generated from LM:
f10Ch<Chassis ID>_lp<slot#>_<Process Name>_<timestamp>.acore.gz
Where cpu specifies a system's CPU and is one of the following values: cp (Control Processor), rp (Route
Processor), lp0 (line-card processor 0), lp1 (line-card processor 1), or lp2 (line-card processor 2);
application specifies the name of the executable that has crashed;
timestamp is a text string in the format: yymmddhhmmss (YearMonthDayHourMinuteSecond).
You can also configure the system to automatically move (upload) an application core dump to an external
FTP server. Use the logging coredump server server-ip-address username ftp-username
password ftp-password command in global configuration mode to configure an FTP server.
When you enter the logging coredump server command, you are required to enter a password. Use the
password of the FTP server where the core files are to be copied. The password can be up to 15 characters;
special characters are allowed. After you enter the password, an FTP URL is created with the credentials in the
operating system. The CLI monitors application core dumps in the unit.
NOTE: On the system, when you enable core dumps of application crashes to be uploaded to an FTP
server, only core dumps from the Control Processor are uploaded to the server. Application core-dump
files from the Route Processor and line-card CPUs are moved to flash memory on the Control Processor
CPU and can be accessed by performing an FTP to the Control Processor (CP) core-dump directory:
• The application core-dump file for the Route Processor is stored at: flash:/CORE_DUMP_DIR/
f10rp_application_timestamp.acore.gz
• The application core-dump file for a line-card processor is stored at:flash:/CORE_DUMP_DIR/
f10lpslot-number_application_timestamp.acore.gz
To disable the automatic uploading of application core dumps, enter the no logging coredump server
command.
Debugging and Diagnostics 387