1.\" $NetBSD: kdump.1,v 1.10 2001/12/01 16:43:16 wiz Exp $ 2.\" 3.\" Copyright (c) 1990, 1993 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. All advertising materials mentioning features or use of this software 15.\" must display the following acknowledgement: 16.\" This product includes software developed by the University of 17.\" California, Berkeley and its contributors. 18.\" 4. Neither the name of the University nor the names of its contributors 19.\" may be used to endorse or promote products derived from this software 20.\" without specific prior written permission. 21.\" 22.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32.\" SUCH DAMAGE. 33.\" 34.\" @(#)kdump.1 8.1 (Berkeley) 6/6/93 35.\" 36.Dd June 6, 1993 37.Dt KDUMP 1 38.Os 39.Sh NAME 40.Nm kdump 41.Nd display kernel trace data 42.Sh SYNOPSIS 43.Nm 44.Op Fl dnlRT 45.Op Fl e Ar emulation 46.Op Fl f Ar file 47.Op Fl m Ar maxdata 48.Op Fl t Ar trstr 49.Sh DESCRIPTION 50.Nm 51displays the kernel trace files produced with 52.Xr ktrace 1 53in human readable format. 54By default, the file 55.Pa ktrace.out 56in the current directory is displayed. 57.Pp 58The options are as follows: 59.Bl -tag -width Fl 60.It Fl d 61Display all numbers in decimal. 62.It Fl e Ar emulation 63If an emulation of a process is unknown, 64interpret system call maps assuming the named emulation instead of 65default "netbsd". 66.It Fl f Ar file 67Display the specified file instead of 68.Pa ktrace.out . 69.It Fl l 70Loop reading the trace file, once the end-of-file is reached, waiting for 71more data. 72.It Fl m Ar maxdata 73Display at most 74.Ar maxdata 75bytes when decoding 76.Tn I/O . 77.It Fl n 78Suppress ad hoc translations. 79Normally 80.Nm 81tries to decode many system calls into a more human readable format. 82For example, 83.Xr ioctl 2 84values are replaced with the macro name and 85.Va errno 86values are replaced with the 87.Xr strerror 3 88string. 89Suppressing this feature yields a more consistent output format and is 90easily amenable to further processing. 91.It Fl R 92Display relative timestamps (time since previous entry). 93.It Fl T 94Display absolute timestamps for each entry (seconds since epoch). 95.It Fl t Ar trstr 96See the 97.Fl t 98option of 99.Xr ktrace 1 . 100.El 101.Sh SEE ALSO 102.Xr ktrace 1 103.Sh HISTORY 104The 105.Nm 106command appears in 107.Bx 4.4 . 108