From owner-freebsd-hackers Fri May 12 10:26: 0 2000 Delivered-To: freebsd-hackers@freebsd.org Received: from sofia.csl.sri.com (sofia.csl.sri.com [130.107.19.127]) by hub.freebsd.org (Postfix) with ESMTP id D851D37B755 for ; Fri, 12 May 2000 10:25:55 -0700 (PDT) (envelope-from molter@sofia.csl.sri.com) Received: (from molter@localhost) by sofia.csl.sri.com (8.9.3/8.9.3) id KAA01357; Fri, 12 May 2000 10:27:15 -0700 (PDT) (envelope-from molter) From: Marco Molteni Date: Fri, 12 May 2000 10:27:15 -0700 To: freebsd-hackers@FreeBSD.ORG Cc: Greg Lehey Subject: Re: kernel panics at boot, how to specify dump device? Message-ID: <20000512102715.A1281@sofia.csl.sri.com> Mail-Followup-To: freebsd-hackers@FreeBSD.ORG, Greg Lehey References: <20000511122038.A99408@sofia.csl.sri.com> <20000511130359.Y337@beastie.localdomain> <20000512090124.C10505@freebie.lemis.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0pre4i In-Reply-To: <20000512090124.C10505@freebie.lemis.com>; from grog@lemis.com on Fri, May 12, 2000 at 09:01:24AM +0930 Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Fri, 12 May 2000, Greg Lehey wrote: > On Thursday, 11 May 2000 at 13:03:59 -0700, Brian O'Shea wrote: > > > On Thu, May 11, 2000 at 12:20:38PM -0700, Marco Molteni wrote: > > > > > I have a 4-STABLE kernel that panics at boot. How do I force the kernel > > > to core dump? [..] > > From the LINT kernel config file: > > > > config kernel root on wd0 dumps on wd0 > > That's not there in 4.0. I believe most of this was vandalized some > time late last year. Yes, I remember having seen it in the past. > I've been running in to this problem too. Hehe, I've seen your emails on the subject in the archive ;-) > I'm planning to add an option to ddb where you can specify the dump > device at the time where you want to take the dump. Looks like a good idea. > Marco, where exactly is it panicing? Do you have ddb in the kernel? Yes, I have ddb in the kernel, although I am not good at it (I prefer symbolic debuggers ;-). It is panicing in the initialization of the routing tables, probably because I am playing with them :-) Anyway, reading the email archives I found a suggestion by bde (I think) who said: who needs a core dump, if you can use remote gdb? Well, since I have two machines, I found that remote gdb is the way to go :-) Thanks Marco -- Marco Molteni "rough consensus and running code" SRI International, System Design Laboratory To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message