The Regents of the University of California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. All advertising materials mentioning features or use of this software
must display the following acknowledgement:
This product includes software developed by the University of
California, Berkeley and its contributors.
4. Neither the name of the University nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
@(#)kdump.1 8.1 (Berkeley) 6/6/93
$FreeBSD: head/usr.bin/kdump/kdump.1 115759 2003-06-03 01:44:43Z peter $
.Dd June 6, 1993 .Dt KDUMP 1 .Os .Sh NAME .Nm kdump .Nd display kernel trace data .Sh SYNOPSIS .Nm .Op Fl dnlRT .Op Fl f Ar file .Op Fl m Ar maxdata .Op Fl p Ar pid .Op Fl t Op cnisuw .Sh DESCRIPTION The .Nm command displays the kernel trace files produced with .Xr ktrace 1 in human readable format. By default, the file
a ktrace.out in the current directory is displayed.
p The options are as follows: l -tag -width Fl t Fl d Display all numbers in decimal. t Fl f Ar file Display the specified file instead of
a ktrace.out . t Fl l Loop reading the trace file, once the end-of-file is reached, waiting for more data. t Fl m Ar maxdata Display at most .Ar maxdata bytes when decoding .Tn I/O . t Fl n Suppress ad hoc translations. Normally .Nm tries to decode many system calls into a more human readable format. For example, .Xr ioctl 2 values are replaced with the macro name and .Va errno values are replaced with the .Xr strerror 3 string. Suppressing this feature yields a more consistent output format and is easily amenable to further processing. t Fl p Ar pid Display only trace events that correspond to the process .Ar pid . This may be useful when there are multiple processes recorded in the same trace file. t Fl R Display relative timestamps (time since previous entry). t Fl T Display absolute timestamps for each entry (seconds since epoch). t Fl t Ar cnisuw See the .Fl t option of .Xr ktrace 1 . .El .Sh SEE ALSO .Xr ktrace 1 .Sh HISTORY The .Nm command appeared in x 4.4 .