From owner-freebsd-hackers Tue Feb 20 00:22:29 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id AAA29038 for hackers-outgoing; Tue, 20 Feb 1996 00:22:29 -0800 (PST) Received: from irz301.inf.tu-dresden.de (irz301.inf.tu-dresden.de [141.76.1.11]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id AAA29032 for ; Tue, 20 Feb 1996 00:22:17 -0800 (PST) Received: from sax.sax.de by irz301.inf.tu-dresden.de (8.6.12/8.6.12-s1) with ESMTP id JAA24267; Tue, 20 Feb 1996 09:14:37 +0100 Received: by sax.sax.de (8.6.11/8.6.12-s1) with UUCP id JAA23187; Tue, 20 Feb 1996 09:14:26 +0100 Received: (from j@localhost) by uriah.heep.sax.de (8.7.3/8.6.9) id JAA15616; Tue, 20 Feb 1996 09:09:38 +0100 (MET) From: J Wunsch Message-Id: <199602200809.JAA15616@uriah.heep.sax.de> Subject: Re: Web server locks up... but not quite. (?) To: freebsd-hackers@freebsd.org (FreeBSD hackers) Date: Tue, 20 Feb 1996 09:09:38 +0100 (MET) Cc: taob@io.org (Brian Tao) Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) In-Reply-To: from "Brian Tao" at Feb 19, 96 11:58:14 pm X-Phone: +49-351-2012 669 X-Mailer: ELM [version 2.4 PL24 ME8a] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-hackers@freebsd.org Precedence: bulk As Brian Tao wrote: > I do have console access... how do I get a > kernel core dump while using the pcvt driver? Ctrl-Alt-Esc doesn't > seem to do anything. Have you configured DDB? This is the only way where Ctrl-Alt-Esc is being respected. Within DDB, you could type ``panic'', and hopefully get a core dump. However, if all interrupts are blocked, this doesn't help you, while the NMI button should still be honored. Dumping itself turns the disk driver into polled mode, so it should even work with jamming interrupt lines. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)