From owner-freebsd-stable@FreeBSD.ORG  Mon Mar 16 15:23:21 2015
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
Delivered-To: freebsd-stable@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115])
 (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id 064B55BA
 for <freebsd-stable@freebsd.org>; Mon, 16 Mar 2015 15:23:21 +0000 (UTC)
Received: from bigwig.baldwin.cx (bigwig.baldwin.cx [IPv6:2001:470:1f11:75::1])
 (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id D192D123
 for <freebsd-stable@freebsd.org>; Mon, 16 Mar 2015 15:23:20 +0000 (UTC)
Received: from ralph.baldwin.cx (pool-173-54-116-245.nwrknj.fios.verizon.net
 [173.54.116.245])
 by bigwig.baldwin.cx (Postfix) with ESMTPSA id 2E30DB941;
 Mon, 16 Mar 2015 11:23:18 -0400 (EDT)
From: John Baldwin <jhb@freebsd.org>
To: freebsd-stable@freebsd.org
Subject: Re: savecore problem
Date: Mon, 16 Mar 2015 11:23:07 -0400
Message-ID: <2959054.c91S7azMUP@ralph.baldwin.cx>
User-Agent: KMail/4.14.2 (FreeBSD/10.1-STABLE; KDE/4.14.2; amd64; ; )
In-Reply-To: <CAKFCL4WHjJsPGMd_jRx9h48D+e1md+_c3wY9N6u_9=unq=cdhw@mail.gmail.com>
References: <CA+Az77No+0k=S4xq5MPK-YEgm7HGh++SBNRHeV0hHq7AqOc0Tw@mail.gmail.com>
 <CAKFCL4WHjJsPGMd_jRx9h48D+e1md+_c3wY9N6u_9=unq=cdhw@mail.gmail.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 7Bit
Content-Type: text/plain; charset="us-ascii"
X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.2.7
 (bigwig.baldwin.cx); Mon, 16 Mar 2015 11:23:18 -0400 (EDT)
Cc: Brandon Allbery <allbery.b@gmail.com>,
 Michael BlackHeart <amdmiek@gmail.com>
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.18-1
Precedence: list
List-Id: Production branch of FreeBSD source code <freebsd-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-stable>,
 <mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable/>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
 <mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 16 Mar 2015 15:23:21 -0000

On Monday, March 16, 2015 10:17:54 AM Brandon Allbery wrote:
> On Mon, Mar 16, 2015 at 9:40 AM, Michael BlackHeart <amdmiek@gmail.com>
> wrote:
> 
> > Hello there. I've got a problem. Recently my personal server issued a
> > kernel panic. Then there's a dump and so on. But there's no dump
> > information after reboot. I do not know what was really the panic cause but
> > assume that savecore failed because of RAID.
> >
> > Problem - minidump was done (I saw it was) but was not recovered by
> > savecore after reboot into /var/vrash
> >
> (...)
> 
> > /dev/ufs/varfs          /var            ufs     rw,noatime
> >      2       2
> >
> 
> Last I checked, savecore had to happen very early --- before filesystems
> other than / are mounted.

No, it can happen after that.  What really has to happen is that you don't
use swap (if you are dumping to your swap partition) before savecore runs.

-- 
John Baldwin