From owner-freebsd-current Thu Sep 12 11:12:22 2002 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 9651537B401 for ; Thu, 12 Sep 2002 11:12:16 -0700 (PDT) Received: from rootlabs.com (root.org [67.118.192.226]) by mx1.FreeBSD.org (Postfix) with SMTP id 2B74043E4A for ; Thu, 12 Sep 2002 11:12:16 -0700 (PDT) (envelope-from nate@rootlabs.com) Received: (qmail 24670 invoked by uid 1000); 12 Sep 2002 18:12:17 -0000 Date: Thu, 12 Sep 2002 11:12:17 -0700 (PDT) From: Nate Lawson To: Sid Carter Cc: current@freebsd.org Subject: Re: Kernel from latest cvsup refuses to boot. - hangs In-Reply-To: <86y9a77a5p.fsf@calvin.in.ibm.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On 12 Sep 2002, Sid Carter wrote: > >>>>> On Wed, 11 Sep 2002 11:30:55 -0700 (PDT), Nate Lawson said: > > Nate> tell without more info. Enable options DDB, boot -vs, wait for the > Nate> hang. Hit CTRL-ALT-ESC to go into DDB and type tr to get a > Nate> backtrace. Copy the trace info (serial console is best for this). Hit c > Nate> for continue, wait, repeat. Chances are you'll still be at the same > Nate> backtrace. If so, then this is the code that's hanging. > > Hi, > I am using the default GENERIC kernel and it already has DDB compiled > in. When I try to do what you suggested above, nothing happens. It is > still in the hung state. No changes. And I don't have a serial console > that I can setup :( Then it's a hard hang somewhere after the bpfinit call. A better approach would be to figure out which source changes introduced the problem by cvsupping to certain days around when it happened, buildkernel, reboot. Once you have it narrowed down to a day, you can identify the culprit commit. -Nate To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message