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Man Pages


Manual Reference Pages  -  KTRDUMP (8)

NAME

ktrdump - print kernel ktr trace buffer

CONTENTS

Synopsis
Description
See Also
History
Authors

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
.Fx 5.0 .

AUTHORS


.An -nosplit The ktrdump utility was implemented by
.An Jake Burkholder Aq jake@FreeBSD.org .

This manual page was written by
.An Chad David Aq davidc@FreeBSD.org .

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