From owner-freebsd-questions@freebsd.org Thu Oct 22 18:25:33 2015 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 5FFD7A1C943 for ; Thu, 22 Oct 2015 18:25:33 +0000 (UTC) (envelope-from galtsev@kicp.uchicago.edu) Received: from cosmo.uchicago.edu (cosmo.uchicago.edu [128.135.70.90]) by mx1.freebsd.org (Postfix) with ESMTP id 3CEDD1315 for ; Thu, 22 Oct 2015 18:25:33 +0000 (UTC) (envelope-from galtsev@kicp.uchicago.edu) Received: by cosmo.uchicago.edu (Postfix, from userid 48) id 61F72CB8CB8; Thu, 22 Oct 2015 13:25:32 -0500 (CDT) Received: from 128.135.52.6 (SquirrelMail authenticated user valeri) by cosmo.uchicago.edu with HTTP; Thu, 22 Oct 2015 13:25:32 -0500 (CDT) Message-ID: <15365.128.135.52.6.1445538332.squirrel@cosmo.uchicago.edu> In-Reply-To: <20151022181651.GA22661@neutralgood.org> References: <1445485729838-6046921.post@n5.nabble.com> <20151022181651.GA22661@neutralgood.org> Date: Thu, 22 Oct 2015 13:25:32 -0500 (CDT) Subject: Re: Automatic reboots on boot attempts From: "Valeri Galtsev" To: kpneal@pobox.com Cc: "jaymax" , freebsd-questions@freebsd.org Reply-To: galtsev@kicp.uchicago.edu User-Agent: SquirrelMail/1.4.8-5.el5.centos.7 MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Priority: 3 (Normal) Importance: Normal X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Oct 2015 18:25:33 -0000 On Thu, October 22, 2015 1:16 pm, kpneal@pobox.com wrote: > On Wed, Oct 21, 2015 at 08:48:49PM -0700, jaymax wrote: >> uname -a => >> FreeBSD MACH1 10.2-RELEASE FreeBSD 10.2-RELEASE #0 r286666: Wed Aug 12 >> 19:31:38 UTC 2015 >> root@releng1.nyi.freebsd.org:/usr/obj/usr/src/sys/GENERIC >> i386 >> >> On booting, everything seems to run OK up to a point. POST runs as >> expected, hardware/device probe runs with bright white foreground text >> fonts >> to stdout. I can't tell if the probe is completed because of its >> rapidity, >> but apparently stalls afterwards as there is no further output, in fact >> the >> screen display disappears. >> >> The system at this point or after some irregular delay period will do >> an >> automatic reboot, [BIOS being set for auto reboot on 'Power OFF']. >> >> There is no indication of entering the init or getty stage of the >> bootstrapping process? > > Are you running X? > > It sounds like it goes into "multiuser mode" (where all the filesystems > are mounted) and then something happens that causes the reboot. I can't > rule out an errant device driver (X?) touching a chip in such a way as > to cause an instant reboot. > > The need to fsck all of your filesystems indicates that they were mounted > at the time the system got the finger. > > I can't rule out hardware because bad memory could also cause a reboot. > > My personal guess is that you are running X11 and something is going > bad there. If you turn it off is your machine stable? > >> Shutdown, followed by a power-up and the problem re-asserts itself. My >> /boot/loader.conf is currently empty no customization & everything >> should be >> 'at default", yet - continual reboots. > > Somebody else chime in here: Are device drivers for X11 supposed to be > added to the loader.conf? Sorry, I only use FreeBSD as a server myself. > On my FreeBSD 10.1 workstation I have nothing X related in my /boot/loader.conf. I must say: I do not run display manager daemon with graphic login, instead I log in as regular user on virtual console, then run exec startx ("exec" so user is logged out if X is killed), and in turn my .xinitrc has exec mate-session I hope this helps. Valeri > -- > Kevin P. Neal http://www.pobox.com/~kpn/ > > "What is mathematics? The age-old answer is, of course, that mathematics > is what mathematicians do." - Donald Knuth > _______________________________________________ > freebsd-questions@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to > "freebsd-questions-unsubscribe@freebsd.org" > ++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++