From owner-freebsd-stable@freebsd.org Thu Oct 4 07:04:02 2018 Return-Path: Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id ACE7D10C237E for ; Thu, 4 Oct 2018 07:04:02 +0000 (UTC) (envelope-from rainer@ultra-secure.de) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id 44EB286962 for ; Thu, 4 Oct 2018 07:04:02 +0000 (UTC) (envelope-from rainer@ultra-secure.de) Received: by mailman.ysv.freebsd.org (Postfix) id 0975F10C237D; Thu, 4 Oct 2018 07:04:02 +0000 (UTC) Delivered-To: stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id EC3BF10C237C for ; Thu, 4 Oct 2018 07:04:01 +0000 (UTC) (envelope-from rainer@ultra-secure.de) Received: from connect.ultra-secure.de (connect.ultra-secure.de [88.198.71.201]) by mx1.freebsd.org (Postfix) with ESMTP id 586B486961 for ; Thu, 4 Oct 2018 07:04:01 +0000 (UTC) (envelope-from rainer@ultra-secure.de) Received: (Haraka outbound); Thu, 04 Oct 2018 09:01:17 +0200 Authentication-Results: connect.ultra-secure.de; auth=pass (login); spf=none smtp.mailfrom=ultra-secure.de Received-SPF: None (connect.ultra-secure.de: domain of ultra-secure.de does not designate 127.0.0.10 as permitted sender) receiver=connect.ultra-secure.de; identity=mailfrom; client-ip=127.0.0.10; helo=connect.ultra-secure.de; envelope-from= Received: from connect.ultra-secure.de (webmail [127.0.0.10]) by connect.ultra-secure.de (Haraka/2.6.2-toaster) with ESMTPSA id 86A2C0C1-961A-4337-B172-ED3D6B0CF1BB.1 envelope-from (authenticated bits=0) (version=TLSv1/SSLv3 cipher=AES256-SHA verify=NO); Thu, 04 Oct 2018 09:01:15 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Date: Thu, 04 Oct 2018 09:01:15 +0200 From: rainer@ultra-secure.de To: Holger Kipp Cc: stable@freebsd.org Subject: Re: 11.2-RELEASE panics with a bit of load In-Reply-To: <6B1BFE46-1ABF-436C-9E85-74DDFCD2BB24@alogis.com> References: <7b8edb650b9d50a03e60335ebc13ada8@ultra-secure.de> <6B1BFE46-1ABF-436C-9E85-74DDFCD2BB24@alogis.com> Message-ID: X-Sender: rainer@ultra-secure.de User-Agent: Roundcube Webmail/1.2.0 X-Haraka-GeoIP: --, , NaNkm X-Haraka-GeoIP-Received: X-Haraka-p0f: os="undefined undefined" link_type="undefined" distance=undefined total_conn=undefined shared_ip=Y X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on spamassassin X-Spam-Level: X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00 autolearn=ham autolearn_force=no version=3.4.1 X-Haraka-Karma: score: 6, good: 721, bad: 0, connections: 727, history: 721, pass:all_good, relaying X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 04 Oct 2018 07:04:02 -0000 Am 2018-10-04 05:53, schrieb Holger Kipp: > Dear Rainer, > > if no one else is experiencing these errors, then it is probably a > hardware error. > I had once encountered problems with incompatible memory (combination > of memory (ok with other boards) and board (ok with other memory) did > not work properly). The issue could be triggered with a simple > buildworld within minutes. However memtest86 could run for hours > without finding a thing. > Please don‘t rely on memtest86 if it does not report any problems. > > To be sure: check / adjust memory timings, remove and/or replace > memory modules and try to trigger the error again. > > Best regards, > Holger Kipp I have this problem on two machines, actually. It would be highly unlikely for both to have hardware problems. Though possible, of course. Reducing ARC seems to help, though, and I assume that is the problem the machine ran into because I still have 29GB out of 32GB wired now, with an ARC limited to 60% of kmem_size.