Mac OS X in a Nutshell

Name

kdump

Synopsis

kdump [option]

Decode and display a kernel trace file produced by ktrace. By default, kdump processes any ktrace.out file found in the current working directory.

Options

-d

Show all numbers in decimal format.

-f tracefile

Process the file tracefile instead of ktrace.out.

-l

Continue to read and display the trace file as new trace data are added.

-m maxdata

When decoding I/O data, show no more than maxdata bytes.

-n

Don’t decode completly; display some values, such as those from ioctl and errno, in their raw format.

-R

With each entry, show time since previous entry (relative timestamp).

-t tracepoints

Show only the traces specified in tracepoints (see kdump’s -t option).

-T

With each entry, show seconds since the epoch (absolute timestamp).