From owner-freebsd-stable@FreeBSD.ORG Wed Mar 6 13:58:19 2013 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 1FD6F7BD for ; Wed, 6 Mar 2013 13:58:19 +0000 (UTC) (envelope-from service.info@institutoptique.fr) Received: from smtp2.u-psud.fr (smtp2.u-psud.fr [129.175.33.42]) by mx1.freebsd.org (Postfix) with ESMTP id A59ECC26 for ; Wed, 6 Mar 2013 13:58:18 +0000 (UTC) Received: from smtp2.u-psud.fr (localhost [127.0.0.1]) by localhost (MTA) with SMTP id 3CB8334D7BB; Wed, 6 Mar 2013 14:58:11 +0100 (CET) Received: from [10.117.40.5] (dns.institutoptique.fr [129.175.196.160]) by smtp2.u-psud.fr (MTA) with ESMTP id 0EE7434D79B; Wed, 6 Mar 2013 14:58:11 +0100 (CET) Message-ID: <1362578286.16808.16.camel@iMac-LBlot.domain.iogs> Subject: Re: Strange reboot since 9.1 From: Service Info To: Marin Atanasov Nikolov Date: Wed, 06 Mar 2013 14:58:06 +0100 In-Reply-To: References: <1362560123.16808.4.camel@iMac-LBlot.domain.iogs> Organization: Institut Optique Graduate School Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.6.3 Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Cc: "freebsd-stable@freebsd.org" X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list Reply-To: service.info@institutoptique.fr List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Mar 2013 13:58:19 -0000 Hi Marin, i don't use ZFS on this system, only UFS2+J :) My LDAP servers reboots more often when i compile a program (yesterday when i compile samba36), i think it's when server it's charged (my monitoring server uses 750 NRPE sensors + MRTG under 50 switches every time and SNORT But the CPU isn't very used, like memory: CPU: 8.4% user, 0.0% nice, 0.6% system, 0.0% interrupt, 91.0% idle Mem: 709M Active, 606M Inact, 885M Wired, 92M Cache, 826M Buf, 5599M Free -- Cordialement, Loïc BLOT Systèmes UNIX, Sécurité et Réseau 01.64.53.31.54 Laboratoire Charles Fabry, CNRS Le mercredi 06 mars 2013 à 11:18 +0200, Marin Atanasov Nikolov a écrit : > > > > On Wed, Mar 6, 2013 at 10:55 AM, Loïc Blot > wrote: > Hello, > > > Hi, > > > Since FreeBSD 9.1 I have strange problems with the > distribution. Some > servers are rebooting without any kernel panic, instanly. > First i > thought it's a problem with my KVM system, but one of my > FreeBSD under a > Dell R210 have the same problem. > The servers concerned are now: > - Monitoring server > - LDAP test server > - Some other servers, randomly (not in production). > First i thought it's a problem with my FreeBSD install, then i > download > another time the ISO but the problem was already here. After i > try > another thing, install 9.0 and upgrade to 9.1 but same > problem. > How can i get informations about this problem ? > > > > I've had similar issues with one of my FreeBSD systems. My system had > spontaneous reboots without any kernel panic, without any clear > evidence of why it happened. > > > After a lot of trials and tests the root cause appeared to be the > amount of ZFS snapshots I had, which were more than 1K on a 8G system. > > > > Upgrading from 9.0 to 9.1 didn't solve the issue, as clearly I had to > do some cleanup of the ZFS snapshots and since then it's more than a > month without any reboots. > > > Few pointers that you could use -- get these systems monitored and > keep an eye on the monitoring system -- CPU usage, memory, processes, > network traffic, etc.. I've noticed that my system was running low on > free memory and that later led me to the ZFS snapshots clue. > > > So, my advise is to get first these systems monitored and watch for > anything unusual happening. Then further investigate. > > Good luck. > > Regards, > Marin > > > Thanks for advance. > -- > Best regards, > > Loïc BLOT, Engineering > UNIX Systems, Security and Networks > http://www.unix-experience.fr > > > > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to > "freebsd-stable-unsubscribe@freebsd.org" > > > > -- > Marin Atanasov Nikolov > > dnaeon AT gmail DOT com > http://www.unix-heaven.org/