vpanic (9)

Leading comments

    $NetBSD: panic.9,v 1.2 1996/10/09 17:20:04 explorer Exp $

Copyright (c) 1996 Michael Graff.
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 ...

(The comments found at the beginning of the groff file "man9/vpanic.9freebsd".)

NAME

panic - bring down system on fatal error

SYNOPSIS

In sys/types.h In sys/systm.h Ft void Fn panic const char *fmt ... Ft void Fn vpanic const char *fmt va_list ap

DESCRIPTION

The Fn panic and Fn vpanic functions terminate the running system. The message Fa fmt is a printf(3) style format string. The message is printed to the console and the location Fa panicstr is set to the address of the message text for retrieval from the OS core dump.

If the kernel debugger is installed control is passed to it, otherwise an attempt to save a core dump of the OS to a configured dump device is made.

If Fn panic is called twice (from the disk sync routines, for example) the system is rebooted without syncing the disks.

RETURN VALUES

The Fn panic function does not return.