From owner-freebsd-current@freebsd.org  Tue Nov 28 10:38:15 2017
Return-Path: <owner-freebsd-current@freebsd.org>
Delivered-To: freebsd-current@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 8D1D8E5184D
 for <freebsd-current@mailman.ysv.freebsd.org>;
 Tue, 28 Nov 2017 10:38:15 +0000 (UTC)
 (envelope-from kostikbel@gmail.com)
Received: from kib.kiev.ua (kib.kiev.ua [IPv6:2001:470:d5e7:1::1])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id 0A3227F4C6
 for <freebsd-current@freebsd.org>; Tue, 28 Nov 2017 10:38:14 +0000 (UTC)
 (envelope-from kostikbel@gmail.com)
Received: from tom.home (kib@localhost [127.0.0.1])
 by kib.kiev.ua (8.15.2/8.15.2) with ESMTPS id vASAc9l3014824
 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO);
 Tue, 28 Nov 2017 12:38:09 +0200 (EET)
 (envelope-from kostikbel@gmail.com)
DKIM-Filter: OpenDKIM Filter v2.10.3 kib.kiev.ua vASAc9l3014824
Received: (from kostik@localhost)
 by tom.home (8.15.2/8.15.2/Submit) id vASAc9ZE014823;
 Tue, 28 Nov 2017 12:38:09 +0200 (EET)
 (envelope-from kostikbel@gmail.com)
X-Authentication-Warning: tom.home: kostik set sender to kostikbel@gmail.com
 using -f
Date: Tue, 28 Nov 2017 12:38:09 +0200
From: Konstantin Belousov <kostikbel@gmail.com>
To: "Alex V. Petrov" <alexvpetrov@gmail.com>
Cc: FreeBSD Current <freebsd-current@freebsd.org>
Subject: Re: CURRENT: core dumped no process name
Message-ID: <20171128103809.GM2272@kib.kiev.ua>
References: <e12b9252-5e55-7899-6755-7541b605d867@gmail.com>
 <20171128082914.GJ2272@kib.kiev.ua>
 <37361d1d-72a2-52ba-f028-87c896d78a97@gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <37361d1d-72a2-52ba-f028-87c896d78a97@gmail.com>
User-Agent: Mutt/1.9.1 (2017-09-22)
X-Spam-Status: No, score=-2.0 required=5.0 tests=ALL_TRUSTED,BAYES_00,
 DKIM_ADSP_CUSTOM_MED,FREEMAIL_FROM,NML_ADSP_CUSTOM_MED autolearn=no
 autolearn_force=no version=3.4.1
X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on tom.home
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.25
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
 <freebsd-current.freebsd.org>
List-Unsubscribe: <https://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: <https://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
 <mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 28 Nov 2017 10:38:15 -0000

On Tue, Nov 28, 2017 at 05:13:10PM +0700, Alex V. Petrov wrote:
> from /var/log/messages
> 
> # grep core /var/log/messages
> Nov 21 06:26:56 alex kernel: 1001: exited on signal 11 (core dumped)
> Nov 22 00:46:31 alex kernel: FreeBSD/SMP: 1 package(s) x 8 core(s)
> Nov 22 16:01:32 alex kernel: 1001: exited on signal 11 (core dumped)
> Nov 23 08:14:45 alex kernel: FreeBSD/SMP: 1 package(s) x 8 core(s)
> Nov 24 04:32:17 alex kernel: 1001: exited on signal 11 (core dumped)
> Nov 24 04:41:44 alex kernel: 1001: exited on signal 11 (core dumped)
> Nov 24 04:48:03 alex kernel: 1001: exited on signal 11 (core dumped)
> Nov 24 04:49:55 alex kernel: 1001: exited on signal 11 (core dumped)
> Nov 24 11:33:45 alex kernel: FreeBSD/SMP: 1 package(s) x 8 core(s)
> Nov 26 02:50:35 alex kernel: 1001: exited on signal 11 (core dumped)
> Nov 26 03:47:56 alex kernel: FreeBSD/SMP: 1 package(s) x 8 core(s)
> Nov 26 12:05:01 alex kernel: 1001: exited on signal 11 (core dumped)
> Nov 26 14:16:26 alex kernel: FreeBSD/SMP: 1 package(s) x 8 core(s)
> Nov 26 14:27:05 alex kernel: 0: exited on signal 6 (core dumped)
> Nov 26 23:49:56 alex kernel: FreeBSD/SMP: 1 package(s) x 8 core(s)
> Nov 26 23:50:26 alex kernel: 0: exited on signal 6 (core dumped)
> Nov 27 12:13:02 alex kernel: FreeBSD/SMP: 1 package(s) x 8 core(s)
> Nov 27 15:28:11 alex kernel: 0: exited on signal 6 (core dumped)
> Nov 27 15:50:54 alex kernel: 0: exited on signal 6 (core dumped)
> Nov 27 16:34:02 alex kernel: 0: exited on signal 6 (core dumped)
> Nov 28 03:07:42 alex kernel: 0: exited on signal 6 (core dumped)
> Nov 28 04:20:03 alex kernel: FreeBSD/SMP: 1 package(s) x 8 core(s)
> Nov 28 04:51:08 alex kernel: 0: exited on signal 6 (core dumped)
> Nov 28 10:28:38 alex kernel: 1001: exited on signal 11 (core dumped)
> Nov 28 15:55:42 alex kernel: FreeBSD/SMP: 1 package(s) x 8 core(s)
> Nov 28 17:05:35 alex kernel: 0: exited on signal 6 (core dumped)
> 
Do you use syslogd after r325558 ?  If yes, try to revert it.