From owner-freebsd-current@FreeBSD.ORG  Wed Mar 27 05:55:02 2013
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@FreeBSD.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by hub.freebsd.org (Postfix) with ESMTP id 6802D8F8
 for <freebsd-current@FreeBSD.org>; Wed, 27 Mar 2013 05:55:02 +0000 (UTC)
 (envelope-from avg@FreeBSD.org)
Received: from citadel.icyb.net.ua (citadel.icyb.net.ua [212.40.38.140])
 by mx1.freebsd.org (Postfix) with ESMTP id ACB5537D
 for <freebsd-current@FreeBSD.org>; Wed, 27 Mar 2013 05:55:01 +0000 (UTC)
Received: from porto.starpoint.kiev.ua (porto-e.starpoint.kiev.ua
 [212.40.38.100])
 by citadel.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id HAA19040;
 Wed, 27 Mar 2013 07:54:52 +0200 (EET) (envelope-from avg@FreeBSD.org)
Received: from localhost ([127.0.0.1])
 by porto.starpoint.kiev.ua with esmtp (Exim 4.34 (FreeBSD))
 id 1UKjJz-0008Da-Vt; Wed, 27 Mar 2013 07:54:52 +0200
Message-ID: <515289AC.3050204@FreeBSD.org>
Date: Wed, 27 Mar 2013 07:54:52 +0200
From: Andriy Gapon <avg@FreeBSD.org>
User-Agent: Mozilla/5.0 (X11; FreeBSD amd64;
 rv:17.0) Gecko/20130321 Thunderbird/17.0.4
MIME-Version: 1.0
To: mh@kernel32.de
Subject: Re: panic at serial boot
References: <e755813a47d9e5a05dd2d308a6b3d8a9@kernel32.de>
In-Reply-To: <e755813a47d9e5a05dd2d308a6b3d8a9@kernel32.de>
X-Enigmail-Version: 1.5.1
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Cc: freebsd-current@FreeBSD.org
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.14
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
 <freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-current>, 
 <mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
 <mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 27 Mar 2013 05:55:02 -0000

on 27/03/2013 00:00 mh@kernel32.de said the following:
> Hi Ho,
> 
> I'm trying to install FreeBSD 10.0-CURRENT snapshot from 23.03.2013 on a Dell
> M620 blade.
> However, I'm getting a panic and drop to db while booting.
> 
> Looks like that:
> 
> Root mount waiting for: usbus1 usbus0
> ugen0.2: <vendor 0x8087> at usbus0
> uhub2: <vendor 0x8087 product 0x0024, class 9/0, rev 2.00/0.00, addr 2> on usbus0
> ugen1.2: <vendor 0x8087> at usbus1
> uhub3: <vendor 0x8087 product 0x0024, class 9/0, rev 2.00/0.00, addr 2> on usbus1
> Root mount waiting for: usbus1 usbus0
> uhub2: 6 ports with 6 removable, self powered
> uhub3: 8 ports with 8 removable, self powered
> ugen0.3: <no manufacturer> at usbus0
> uhub4: <no manufacturer Gadget USB HUB, class 9/0, rev 2.00/0.00, addr 3> on usbus0
> Root mount waiting for: usbus1 usbus0
> ugen1.3: <Avocent> at usbus1
> ukbd0: <EP1 Interrupt> on usbus1
> kbd0 at ukbd0
> kbd0: ukbd0, generic (0), config:0x0, flags:0x3d0000
> uhub4: 6 ports with 6 removable, self powered
> Root mount waiting for: usbus0
> ugen0.4: <Avocent> at usbus0
> ukbd1: <Keyboard> on usbus0
> kbd2 at ukbd1
> kbd2: ukbd1, generic (0), config:0x0, flags:0x3d0000
> Trying to mount root from ufs:/dev/md0 []...
> start_init: trying /sbin/init
> panic: vm_fault: fault on nofault entry, addr: ffffff80002be000
> cpuid = 15
> KDB: enter: panic
> [ thread pid 4 tid 100101 ]
> Stopped at      kdb_enter+0x3e: movq    $0,kdb_why
> db>
> 
> Any idea where to go from here?
> 
> initially I tried 9.1-STABLE snapshot from the same date, but that one doesn't
> even give serial output while booting. odd thing, but that's another story.
> 
> I just thought since I'm giving -current on this hardware a short and there is a
> problem, it might be worth reporting.
> Anything I should do?

'bt' command at the 'db>' prompt

-- 
Andriy Gapon