From owner-freebsd-questions@freebsd.org Wed Mar 9 19:20:31 2016 Return-Path: Delivered-To: freebsd-questions@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 6A69EAC9AF4 for ; Wed, 9 Mar 2016 19:20:31 +0000 (UTC) (envelope-from rsmith@xs4all.nl) Received: from lb1-smtp-cloud6.xs4all.net (lb1-smtp-cloud6.xs4all.net [194.109.24.24]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (Client CN "*.xs4all.nl", Issuer "GlobalSign Domain Validation CA - SHA256 - G2" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 126851600 for ; Wed, 9 Mar 2016 19:20:30 +0000 (UTC) (envelope-from rsmith@xs4all.nl) Received: from slackbox.erewhon.home ([83.162.243.5]) by smtp-cloud6.xs4all.net with ESMTP id TvKJ1s00r07iGuj01vKKHM; Wed, 09 Mar 2016 20:19:19 +0100 Received: from rsmith (uid 1001) (envelope-from rsmith@xs4all.nl) id 123c2 by slackbox.erewhon.home (DragonFly Mail Agent v0.11); Wed, 09 Mar 2016 20:19:18 +0100 Date: Wed, 9 Mar 2016 20:19:18 +0100 From: Roland Smith To: shahzaib shahzaib Cc: freebsd-questions@freebsd.org Subject: Re: FreeBSD Crashes Intermittently !! Message-ID: <20160309191918.GA93884@slackbox.erewhon.home> Mail-Followup-To: shahzaib shahzaib , freebsd-questions@freebsd.org References: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="ibTvN161/egqYuK8" Content-Disposition: inline In-Reply-To: X-GPG-Fingerprint: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 X-GPG-Key: http://www.xs4all.nl/~rsmith/pubkey.txt X-GPG-Notice: If this message is not signed, don't assume I sent it! User-Agent: Mutt/1.5.24 (2015-08-30) X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Mar 2016 19:20:31 -0000 --ibTvN161/egqYuK8 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Mar 09, 2016 at 05:24:37PM +0500, shahzaib shahzaib wrote: > Hi, >=20 > I am new to this mailing list so please pardon me for any mistakes. We've > started using FreeBSD from past 4-5 months and facing auto-reboot crash > issue since the beginning. Following are the servers specs : >=20 > Supermicro X5690 (12 cores, 24 threads - 2u) > 96GB RAM > 12x3TB mirror+stripping (HBA-LSI9211) > X8DT3 Board >=20 > We've total of 5 supermicro servers built upon same hardware and all of > them intermittently goes down and sometimes they crash and boot up > automatically (within 6min) and sometimes they gets freeze and we've to > manually boot them via IPMI interface. All the time we get 'MCA Internal > Timer Error' in crash logs. Here is the recent one : >=20 > http://pastebin.com/042SJ11c In my experience, random crashes/reboots are almost certainly hardware issu= es. Sometimes a card or memory module isn't seated properly (especially after a machine has been moved). But other times it's things like memory modules or power supplies failing. Sometimes logging things like voltages, CPU temperatures and fan RPM can gi= ve you a clue. At $WORK I've experienced spectacular power supply blow-outs because (conductive) carbon fibers caused a short circuit in it. So dust et cetera = can also be a problem, but usually not with new systems. Roland --=20 R.F.Smith http://rsmith.home.xs4all.nl/ [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] pgp: 5753 3324 1661 B0FE 8D93 FCED 40F6 D5DC A38A 33E0 (keyID: A38A33E0) --ibTvN161/egqYuK8 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIcBAABCAAGBQJW4HcuAAoJEED21dyjijPgAcAQAKuOadaj2ZpmJM/vI3HjWlvK 7yH59cd1W19KVycwkCCUa/282yqn6s2nFFGZoDtK1SASl6SXFCxn6NvjJZeafq2A YRNN63QP1QXyZMUeJNoaoeBV1AYwuR8btLerLsUOtHxVsgdQujollIm+GR/w2/SI s4lr9x9kQD8LyJAv3vu9ff8ilW8aaF1cC1uXEE1gsHEXSN5w0WD/uSBL03jMES1i 3jvAVpF2Izs+b9sMS9jwN6xI1qnkTduj81U30Zu/H46WGiHA+ClB1X7NI3dp3VDb +KUmpwgNCQagfku8j7iBA0Yrg0PxU1rmGkbwIbNUj9+koAieLuQ04hnraNRHqza9 vi7SXRERjr6eT7vR0JB8Hk8s9eyef1Hw8rTHHSs5TTIuWbXUcDV6PBVgSpjEd+89 6xPU811RYWSUdG4pjFncmaxwzD5Z23VYEDY92R0NZPDUPFUwx0Ed/u6XAjsbDwo3 GvWJKjjZJg4WV2YfLx7pmfemeQ9YdwwUZJDal9GKUV9+18wnqelqV2hrM9x2EuSJ YhM7Dnl0mt1Kjs0zxTHBRKLN43z9RmcP4D1GTbiGNRBKPlmtdzYSXYG1vNA2QdCt 6WbDOuy++uTngbJw2Sw71aqrz5YI/xKcmLx53+TEfpwjP7TBeKX1mSrkBL6WsQ5R MTE5Emg2nLmfdmuHCceC =0p8c -----END PGP SIGNATURE----- --ibTvN161/egqYuK8--