freebsd man page for ktrdump

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

NAME
     ktrdump -- print kernel ktr trace buffer

SYNOPSIS
     ktrdump [-cfqrtH] [-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.

     -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 information 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>.

BSD
								 February 6, 2015							       BSD