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KDUMP(1)		     General Commands Manual			KDUMP(1)

NAME
     kdump -- display kernel trace data

SYNOPSIS
     kdump [-dnlRT] [-f file] [-m maxdata] [-t [cnisuw]]

DESCRIPTION
     The  kdump  command displays the kernel trace files produced with ktrace(1)
     in human readable format.	By default, the file ktrace.out in  the  current
     directory is displayed.

     The options are as follows:

     -d 	 Display all numbers in decimal.

     -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 ad hoc translations.	Normally kdump tries  to  decode
		 many system calls into a more human readable format.  For exam-
		 ple, 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 eas-
		 ily amenable to further processing.

     -R 	 Display relative timestamps (time since previous entry).

     -T 	 Display absolute  timestamps  for  each  entry  (seconds  since
		 epoch).

     -t cnisuw	 See the -t option of ktrace(1).

SEE ALSO
     ktrace(1)

HISTORY
     The kdump command appeared in 4.4BSD.

Darwin 8.0.1			  June 6, 1993				KDUMP(1)

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