From owner-freebsd-current@FreeBSD.ORG Sun Jun 6 17:25:48 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5C50B16A4CE for ; Sun, 6 Jun 2004 17:25:48 -0700 (PDT) Received: from mtiwmhc12.worldnet.att.net (mtiwmhc12.worldnet.att.net [204.127.131.116]) by mx1.FreeBSD.org (Postfix) with ESMTP id 15C7F43D1F for ; Sun, 6 Jun 2004 17:25:48 -0700 (PDT) (envelope-from j.e.drews@att.net) Received: from 204.127.135.40 ([204.127.135.40]) by worldnet.att.net (mtiwmhc12) with SMTP id <2004060700254511200cvku0e>; Mon, 7 Jun 2004 00:25:45 +0000 Received: from [64.105.56.145] by 204.127.135.40; Mon, 07 Jun 2004 00:25:47 +0000 From: j.e.drews@att.net To: freebsd-current@freebsd.org Date: Mon, 07 Jun 2004 00:25:47 +0000 Message-Id: <060720040025.12183.40C3B60B000027DD00002F9721602807489C990A9D0BD20AD206@att.net> X-Mailer: AT&T Message Center Version 1 (May 27 2004) X-Authenticated-Sender: ai5lLmRyZXdzQGF0dC5uZXQ= Subject: Re: PCMCIA Modem causes hang on boot X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 07 Jun 2004 00:25:48 -0000 I enabled kernel debugging by following the steps in section 10, of the developers handbook. After I rebooted, I typed continue at the db> prompt and then logged in. As soon as I inserted the modem card, FreeBSD froze. After rebooting again I found that the kernel core was not saved in /var/crash. I have this in my /etc/rc.conf: dumpdev="/dev/ad0s1b" # Device name to crashdump to (or NO). dumpdir="/var/crash" # Directory where crash dumps are to be stored savecore_flags="" # Used if dumpdev is enabled above, and present. What should I do to get a kernel backtrace? BTW I meant boot option 5 and not option 6, in my last e-mail. Kind regards, Jonathan > FreeBSD 5.2-CURRENT #0: Sun Jun 6 15:45:41 CDT 2004 > Hawking PN612 PCMCIA Modem v.90