From owner-freebsd-hackers Sun Apr 28 12:50:03 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id MAA19394 for hackers-outgoing; Sun, 28 Apr 1996 12:50:03 -0700 (PDT) Received: from Sisyphos (Sisyphos.MI.Uni-Koeln.DE [134.95.212.10]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id MAA19374 Sun, 28 Apr 1996 12:49:52 -0700 (PDT) Received: by Sisyphos id AA14405 (5.67b/IDA-1.5); Sun, 28 Apr 1996 21:47:36 +0200 Message-Id: <199604281947.AA14405@Sisyphos> From: se@zpr.uni-koeln.de (Stefan Esser) Date: Sun, 28 Apr 1996 21:47:36 +0200 In-Reply-To: Michael Smith "Re: Intelligent Debugging Tools..." (Apr 24, 13:28) X-Mailer: Mail User's Shell (7.2.6 alpha(2) 7/9/95) To: Michael Smith Subject: Re: Intelligent Debugging Tools... Cc: scrappy@ki.net (Marc G. Fournier), hasty@rah.star-gate.com, current@freebsd.org, hackers@freebsd.org Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk On Apr 24, 13:28, Michael Smith wrote: } Subject: Re: Intelligent Debugging Tools... } Marc G. Fournier stands accused of saying: } > } > Is it also a hardware problem that prevents me from getting } > a coredump after issuing 2xpanic at the ddb> prompt to cause it to } > reboot? My -current machine reboots and drops core so that I can } > run kgdb against it, but my -stable machine won't :( } } This machines has an NCR controller in it IIRC. You should talk to } Stefan about this - dumping requires the controller to run in polled } mode, and it's possible that's not happening. Well, I've got to admit, that it is possible the dump code isn't working with the current NCR driver. I didn't test it myself lately, but there has been another report complaining about no kernel dump being saved. This was supposed to work and did a time, and since the driver code didn't change, I suppose some other kernel code did. If it is obvious from the sources, I'll suggest a fix and send you a patch. but I can't promise to get this fixed soon, since my development system is currently installed at my new place of employment, and I don't have access to it, outside business hours. I'll either have to buy a new development system or a new system for the office work, and I'll try to decide this within a week or two ... Regards, STefan -- Stefan Esser, Zentrum fuer Paralleles Rechnen Tel: +49 221 4706021 Universitaet zu Koeln, Weyertal 80, 50931 Koeln FAX: +49 221 4705160 ============================================================================== http://www.zpr.uni-koeln.de/~se