1.\" Copyright (c) 1990, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 3. All advertising materials mentioning features or use of this software 13.\" must display the following acknowledgement: 14.\" This product includes software developed by the University of 15.\" California, Berkeley and its contributors. 16.\" 4. Neither the name of the University nor the names of its contributors 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" from: @(#)kdump.1 8.1 (Berkeley) 6/6/93 33.\" $Id: kdump.1,v 1.2 1994/10/06 15:44:33 mycroft Exp $ 34.\" 35.Dd June 6, 1993 36.Dt KDUMP 1 37.Os BSD 4.4 38.Sh NAME 39.Nm kdump 40.Nd display kernel trace data 41.Sh SYNOPSIS 42.Nm kdump 43.Op Fl dnlRT 44.Op Fl f Ar file 45.Op Fl m Ar maxdata 46.Op Fl t Op cnis 47.Sh DESCRIPTION 48.Nm Kdump 49displays the kernel trace files produced with 50.Xr ktrace 1 51in human readable format. 52By default, the file 53.Pa ktrace.out 54in the current directory is displayed. 55.Pp 56The options are as follows: 57.Bl -tag -width Fl 58.It Fl d 59Display all numbers in decimal. 60.It Fl f Ar file 61Display the specified file instead of 62.Pa ktrace.out . 63.It Fl l 64Loop reading the trace file, once the end-of-file is reached, waiting for 65more data. 66.It Fl m Ar maxdata 67Display at most 68.Ar maxdata 69bytes when decoding 70.Tn I/O . 71.It Fl n 72Suppress ad hoc translations. 73Normally 74.Nm kdump 75tries to decode many system calls into a more human readable format. 76For example, 77.Xr ioctl 2 78values are replaced with the macro name and 79.Va errno 80values are replaced with the 81.Xr strerror 3 82string. 83Suppressing this feature yields a more consistent output format and is 84easily amenable to further processing. 85.It Fl R 86Display relative timestamps (time since previous entry). 87.It Fl T 88Display absolute timestamps for each entry (seconds since epoch). 89.It Fl t Ar cnis 90See the 91.Fl t 92option of 93.Xr ktrace 1 . 94.El 95.Sh SEE ALSO 96.Xr ktrace 1 97.Sh HISTORY 98The 99.Nm kdump 100command appears in 101.Bx 4.4 . 102