kdump man page on 4.4BSD

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

     kdump — display kernel trace data

     kdump [-dnlRT] [-f file] [-m maxdata] [-t [cnis]]

     Kdump displays the kernel trace files produced with ktrace(1) in human
     readable format.  By default, the file ktrace.out in the current direc‐
     tory 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
		 example, ioctl(2) values are replaced with the macro name and
		 errno values are replaced with the strerror(3) string.	 Sup‐
		 pressing this feature yields a more consistent output format
		 and is easily amenable to further processing.

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

     -T		 Display absolute timestamps for each entry (seconds since

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


     The kdump command appears in 4.4BSD.

4.4BSD				 June 6, 1993				4.4BSD

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