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NetBSD 6.1.5 - man page for kdump (netbsd section 1)

KDUMP(1)			   BSD General Commands Manual				 KDUMP(1)

     kdump -- display kernel trace data

     kdump [-dlNnRT] [-e emulation] [-f file] [-m maxdata] [-p pid] [-t trstr] [-x | -X size]

     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

     -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.


     The kdump command appears in 4.4BSD.

BSD					November 15, 2003				      BSD

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