From owner-freebsd-net@FreeBSD.ORG  Sat Feb  5 19:55:59 2011
Return-Path: <owner-freebsd-net@FreeBSD.ORG>
Delivered-To: freebsd-net@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id D28601065670;
	Sat,  5 Feb 2011 19:55:59 +0000 (UTC)
	(envelope-from egrosbein@rdtc.ru)
Received: from eg.sd.rdtc.ru (eg.sd.rdtc.ru [62.231.161.221])
	by mx1.freebsd.org (Postfix) with ESMTP id 029F18FC17;
	Sat,  5 Feb 2011 19:55:58 +0000 (UTC)
Received: from eg.sd.rdtc.ru (localhost [127.0.0.1])
	by eg.sd.rdtc.ru (8.14.4/8.14.4) with ESMTP id p15JttLl093258;
	Sun, 6 Feb 2011 01:55:56 +0600 (NOVT)
	(envelope-from egrosbein@rdtc.ru)
Message-ID: <4D4DAB46.8080509@rdtc.ru>
Date: Sun, 06 Feb 2011 01:55:50 +0600
From: Eugene Grosbein <egrosbein@rdtc.ru>
User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; ru-RU;
	rv:1.9.2.13) Gecko/20110112 Thunderbird/3.1.7
MIME-Version: 1.0
To: Mike Tancsa <mike@sentex.net>
References: <4D3011DB.9050900@frasunek.com>	<4D30458D.30007@sentex.net>	<4D309983.70709@rdtc.ru>	<201101141437.55421.jhb@freebsd.org>	<4D46575A.802@rdtc.ru>	<4D4670C2.4050500@freebsd.org>	<4D48513C.40503@rdtc.ru>	<20110201185026.GB62007@glebius.int.ru>	<4D4D554B.4050407@rdtc.ru>
	<4D4D56DD.30902@sentex.net> <4D4D5814.80600@rdtc.ru>
In-Reply-To: <4D4D5814.80600@rdtc.ru>
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Cc: freebsd-net@freebsd.org, Alexander Motin <mav@freebsd.org>,
	John Baldwin <jhb@freebsd.org>
Subject: Re: panic: bufwrite: buffer is not busy???
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-net>
List-Post: <mailto:freebsd-net@freebsd.org>
List-Help: <mailto:freebsd-net-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 05 Feb 2011 19:55:59 -0000

On 05.02.2011 20:00, Eugene Grosbein wrote:

>>> First: again, no dump (not even started to dump, and no "Uptime:" written to console):
>>
>> if you try and enable dumps manually from the shell,
>>
>> dumpon -v /dev/ad0s1b
>> (or whatever your swap partition is), what does dumpon return with ?
> 
> # . /etc/rc.conf
> # set -x
> # dumpon -v $dumpdev
> + dumpon -v /dev/ad0s4b
> kernel dumps on /dev/ad0s4b

Note: this is NanoBSD running from SSD. It uses ad0s1 and ad0s2 for code
and ad0s3 for /cfg, as usual, 1GB total. Other space of SSD is dedicated
to ad0s4 where I have ad0s4b (8GB) for crashdump and the rest as ad0s4a for /var/crash.

And ad0s4b is NOT configured as swap. There are 4GB of RAM and no swap here.
More than 3GB of RAM are generally free.

Eugene Grosbein