1.\" $NetBSD: kdump.1,v 1.4 1997/01/09 20:20:27 tls 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.\" from: @(#)kdump.1 8.1 (Berkeley) 6/6/93 35.\" $NetBSD: kdump.1,v 1.4 1997/01/09 20:20:27 tls Exp $ 36.\" 37.Dd June 6, 1993 38.Dt KDUMP 1 39.Os BSD 4.4 40.Sh NAME 41.Nm kdump 42.Nd display kernel trace data 43.Sh SYNOPSIS 44.Nm kdump 45.Op Fl dnlRT 46.Op Fl e Ar emulation 47.Op Fl f Ar file 48.Op Fl m Ar maxdata 49.Op Fl t Op cenis 50.Sh DESCRIPTION 51.Nm Kdump 52displays the kernel trace files produced with 53.Xr ktrace 1 54in human readable format. 55By default, the file 56.Pa ktrace.out 57in the current directory is displayed. 58.Pp 59The options are as follows: 60.Bl -tag -width Fl 61.It Fl d 62Display all numbers in decimal. 63.It Fl e Ar emulation 64Interpret system call maps assuming the named emulation instead of "netbsd". 65.It Fl f Ar file 66Display the specified file instead of 67.Pa ktrace.out . 68.It Fl l 69Loop reading the trace file, once the end-of-file is reached, waiting for 70more data. 71.It Fl m Ar maxdata 72Display at most 73.Ar maxdata 74bytes when decoding 75.Tn I/O . 76.It Fl n 77Suppress ad hoc translations. 78Normally 79.Nm kdump 80tries to decode many system calls into a more human readable format. 81For example, 82.Xr ioctl 2 83values are replaced with the macro name and 84.Va errno 85values are replaced with the 86.Xr strerror 3 87string. 88Suppressing this feature yields a more consistent output format and is 89easily amenable to further processing. 90.It Fl R 91Display relative timestamps (time since previous entry). 92.It Fl T 93Display absolute timestamps for each entry (seconds since epoch). 94.It Fl t Ar cnis 95See the 96.Fl t 97option of 98.Xr ktrace 1 . 99.El 100.Sh SEE ALSO 101.Xr ktrace 1 102.Sh HISTORY 103The 104.Nm kdump 105command appears in 106.Bx 4.4 . 107