DESCRIPTION
 kdump displays the kernel trace files produced with 
ktrace(1) in human readable format. The file 
ktrace.out in the current directory is displayed, unless either the 
-f option is used, or a file name is supplied as the last argument.
The options are as follows:
- 
-d
- 
Display all numbers in decimal.
- 
-e emulation
- 
If an emulation of a process is unknown, interpret system call maps assuming the named emulation instead of default "netbsd".
- 
-f file
- 
Display the specified file instead of ktrace.out.
- 
-l
- 
Loop reading the trace file, once the end-of-file is reached, waiting for more data.
- 
-m maxdata
- 
Display at most maxdata bytes when decoding I/O.
- 
-N
- 
Suppress system call number-to-name translation.
- 
-n
- 
Suppress ad hoc translations. Normally kdump tries to decode many system calls into a more human readable format. For example, ioctl(2) values are replaced with the macro name and errno values are replaced with the strerror(3) string. Suppressing this feature yields a more consistent output format and is easily amenable to further processing.
- 
-p pid
- 
Only display records from the trace file that are for the indicated pid.
- 
-R
- 
Display relative timestamps (time since previous entry).
- 
-T
- 
Display absolute timestamps for each entry (seconds since epoch).
- 
-t trstr
- 
Restrict display to the specified set of kernel trace points. The default is to display everything in the file. See the -t option of ktrace(1).
- 
-x
- 
Display GIO data in hex and ascii instead of vis(3) format.
- 
-X size
- 
Same as -x but display hex values by groups of size bytes. Supported values are 1, 2, 4, 8, and 16.