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KTRDUMP(8)		    System Manager's Manual		    KTRDUMP(8)

NAME
       ktrdump -- print	kernel ktr trace buffer

SYNOPSIS
       ktrdump [-cflqrtH] [-i ktrfile] [-M core] [-N system] [-o outfile]

DESCRIPTION
       The  ktrdump  utility  is  used	to dump	the contents of	the kernel ktr
       trace buffer.

       The following options are available:

       -c	   Print the CPU number	that each entry	was logged from.

       -l	   Poll	the kernel ktr trace buffer periodically  dumping  any
		   new events after each poll.

       -f	   Print  the  file and	line number that each entry was	logged
		   from.

       -q	   Quiet mode; do not print the	column header.

       -r	   Print relative timestamps rather than absolute timestamps.

       -t	   Print the timestamp for each	entry.

       -H	   Print the thread ID for each	entry.

       -i ktrfile  File	containing saved ktr trace events; for	more  informa-
		   tion	see the	ktr(4) manual page.

       -N system   The	kernel	image to resolve symbols from.	The default is
		   the value returned via getbootfile(3).

       -M core	   The core file or memory image to read from.	The default is
		   /dev/mem.

       -o outfile  The file to write the output	to.  The default  is  standard
		   output.

SEE ALSO
       ktr(4), ktr(9)

HISTORY
       The ktrdump utility first appeared in FreeBSD 5.0.

AUTHORS
       The    ktrdump	 utility    was	  implemented	by   Jake   Burkholder
       <jake@FreeBSD.org>.

       This manual page	was written by Chad David <davidc@FreeBSD.org>.

FreeBSD	14.3		       October 22, 2018			    KTRDUMP(8)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=ktrdump&sektion=8&manpath=FreeBSD+14.3-RELEASE+and+Ports>

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