From owner-freebsd-hackers Tue Oct 1 13:56:43 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id NAA24498 for hackers-outgoing; Tue, 1 Oct 1996 13:56:43 -0700 (PDT) Received: from phaeton.artisoft.com (phaeton.Artisoft.COM [198.17.250.211]) by freefall.freebsd.org (8.7.5/8.7.3) with SMTP id NAA24491 for ; Tue, 1 Oct 1996 13:56:40 -0700 (PDT) Received: (from terry@localhost) by phaeton.artisoft.com (8.6.11/8.6.9) id NAA02395; Tue, 1 Oct 1996 13:54:59 -0700 From: Terry Lambert Message-Id: <199610012054.NAA02395@phaeton.artisoft.com> Subject: Re: PS broke again -- what has to be rebuilt to stop this? To: leonard@pacbell.net (Leonard Chung) Date: Tue, 1 Oct 1996 13:54:59 -0700 (MST) Cc: jehamby@lightside.com, hackers@freebsd.org In-Reply-To: from "Leonard Chung" at Sep 30, 96 11:52:25 pm X-Mailer: ELM [version 2.4 PL24] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk > Sorry if this sounds really dumb, but I've been wondering, what's the > difference between a crash dump and a core dump? A crash dump has: system image (kmem), including all processes It is a dump of the OS virtual address space. A core dump has: core image of single process It is a dump of a process virtual address space. A crashdump occurs when the machine panics and must be rebooted. A coredump occurs when a process gets a segmentation violation, a bus error, an unhandled floating exception, an illegal instruction, or another error which causes the process to be unable to continue running. Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.