From owner-freebsd-questions@FreeBSD.ORG Wed Mar 14 13:10:39 2012 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 30F631065673 for ; Wed, 14 Mar 2012 13:10:39 +0000 (UTC) (envelope-from freebsd-questions@m.gmane.org) Received: from plane.gmane.org (plane.gmane.org [80.91.229.3]) by mx1.freebsd.org (Postfix) with ESMTP id DEE168FC1A for ; Wed, 14 Mar 2012 13:10:38 +0000 (UTC) Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1S7nyM-0000Ut-Ut for freebsd-questions@freebsd.org; Wed, 14 Mar 2012 14:10:34 +0100 Received: from np-19-75.prenet.pl ([np-19-75.prenet.pl]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 14 Mar 2012 14:10:34 +0100 Received: from jb.1234abcd by np-19-75.prenet.pl with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 14 Mar 2012 14:10:34 +0100 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-questions@freebsd.org From: jb Date: Wed, 14 Mar 2012 13:10:25 +0000 (UTC) Lines: 30 Message-ID: References: <4F5E031D.5060203@gmail.com> <4F5F010D.20507@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: sea.gmane.org User-Agent: Loom/3.14 (http://gmane.org/) X-Loom-IP: 79.139.19.75 (Mozilla/5.0 (X11; FreeBSD i386; rv:10.0.2) Gecko/20100101 Firefox/10.0.2) Subject: Re: 9.0 spontaneously reboots X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 14 Mar 2012 13:10:39 -0000 Volodymyr Kostyrko gmail.com> writes: > > Adam Vande More wrote: > >> I have one machine behaving unstable. This happened before 9.0. After > >> upgrading to 9.0 machine was given a light load and now it reboots. Memory > >> was already tested (without any errors) and changed after another reboot. > >> > > > > So your RAM is good enough to pass a memory test. It doesn't mean it's not > > the culprit. Way too many false negatives from those things. > > True. First server was stacked with Kingston memory, and now I moved to > Hynix. And is still gives me sometimes ECC errors. > You mentioned that "it survives an hour in memtest". Update BIOS - the BIOS in some computers allow counting of detected and corrected memory errors, in part to help identify failing memory modules before the problem becomes catastrophic. Some BIOS have internal memory check tool. Try it. Some refs: http://en.wikipedia.org/wiki/ECC_memory jb