1.\" $NetBSD: panic.9,v 1.2 1996/10/09 17:20:04 explorer Exp $ 2.\" 3.\" Copyright (c) 1996 Michael Graff. 4.\" 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 Michael Graff 17.\" for the NetBSD Project. 18.\" 3. The name of the author may not be used to endorse or promote products 19.\" derived from this software without specific prior written permission 20.\" 21.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31.\" 32.\" $FreeBSD$ 33.\" 34.Dd August 11, 1995 35.Dt PANIC 9 36.Os 37.Sh NAME 38.Nm panic 39.Nd bring down system on fatal error 40.Sh SYNOPSIS 41.In sys/param.h 42.Ft void 43.Fn panic "const char *fmt" ... 44.Sh DESCRIPTION 45The 46.Fn panic 47function terminates the running system. The message 48.Fa fmt 49is a 50.Xr printf 3 51style format string. The message is printed to the console and the location 52.Fa panicstr 53is set to the address of the message text for retrieval from the OS 54core dump. 55.Pp 56If the kernel debugger is installed control is passed to it, otherwise 57an attempt to save a core dump of the OS to a configured dump device 58is made. 59.Pp 60If 61.Fn panic 62is called twice (from the disk sync routines, for example) the system is 63rebooted without syncing the disks. 64.Sh RETURN VALUES 65The 66.Fn panic 67function does not return. 68