From owner-freebsd-questions@freebsd.org Tue May 19 14:52:59 2020 Return-Path: Delivered-To: freebsd-questions@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 02B412DAAA9 for ; Tue, 19 May 2020 14:52:59 +0000 (UTC) (envelope-from tundra@tundraware.com) Received: from oceanview.tundraware.com (oceanview.tundraware.com [45.55.60.57]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mailman.tundraware.com", Issuer "mailman.tundraware.com" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 49RJlZ1fgLz4dLs for ; Tue, 19 May 2020 14:52:57 +0000 (UTC) (envelope-from tundra@tundraware.com) Received: from [192.168.0.7] (ozzie.tundraware.com [75.145.138.73]) (authenticated bits=0) by oceanview.tundraware.com (8.15.2/8.15.2) with ESMTPSA id 04JEpal8049066 (version=TLSv1.2 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Tue, 19 May 2020 09:51:37 -0500 (CDT) (envelope-from tundra@tundraware.com) Subject: Re: OT: Weird Hardware Problem To: Michael Schuster Cc: FreeBSD Mailing List References: <0a9f810d-7b4b-f4e6-4b7c-716044a9cf69@tundraware.com> From: Tim Daneliuk Message-ID: <67ac6396-967f-1d76-0c6d-011d0799b6b7@tundraware.com> Date: Tue, 19 May 2020 09:51:31 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.6.2 (oceanview.tundraware.com [45.55.60.57]); Tue, 19 May 2020 09:51:37 -0500 (CDT) X-TundraWare-MailScanner-Information: Please contact the ISP for more information X-TundraWare-MailScanner-ID: 04JEpal8049066 X-TundraWare-MailScanner: Found to be clean X-TundraWare-MailScanner-SpamCheck: not spam (whitelisted), SpamAssassin (not cached, timed out) X-TundraWare-MailScanner-From: tundra@tundraware.com X-Spam-Status: No X-Rspamd-Queue-Id: 49RJlZ1fgLz4dLs X-Spamd-Bar: / Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=pass (mx1.freebsd.org: domain of tundra@tundraware.com designates 45.55.60.57 as permitted sender) smtp.mailfrom=tundra@tundraware.com X-Spamd-Result: default: False [-0.90 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+a]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[tundraware.com]; NEURAL_HAM_MEDIUM(-0.41)[-0.406]; TO_MATCH_ENVRCPT_SOME(0.00)[]; TO_DN_ALL(0.00)[]; NEURAL_HAM_SHORT(-0.19)[-0.190]; RCPT_COUNT_TWO(0.00)[2]; FREEMAIL_TO(0.00)[gmail.com]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:14061, ipnet:45.55.32.0/19, country:US]; RCVD_COUNT_TWO(0.00)[2]; RCVD_TLS_ALL(0.00)[] X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 May 2020 14:52:59 -0000 On 5/19/20 8:52 AM, Michael Schuster wrote: > can you trigger the problem when you perform the linux installation with full disk encryption in a VM? It appears not. It is installing right now and seems to be working just fine when I do the installation with disk encryption in an Oracle Virtualbox VM on that machine. > > On Tue, May 19, 2020 at 3:48 PM Tim Daneliuk > wrote: > > I was recently given a Dell Inspiron 3847 which has an i7-4790 and 16G > of memory.  Perfect for multibooting BSD and Linux.  It needed a new power > supply but now that this is installed, it's exhibiting a very strange > problem. > > The machine will work for hours flawless and then - for no apparent reason - > reboot randomly.  The former owner reports that this was also happening > when they last had it running Win8. > > I've run very heavy loads on it with load averages up to almost 50 - no > problem.  I've run overnight memory tests which return 0 errors. > I've run CPU stress tests flawlessly and temperatures were fine. > > One hint here:  I can consistently force the problem to happen if I start > a Linux installation and request full disk encryption as part of the install. > I doubt it has anything to with encryption per se, but there is some kind > of pattern of use that it causing the reboot. > > Has anyone else ever seen something like this and/or have resolution? > > Is there a known bug with that processor? > > My first instinct was to blame flakey memory (DDR 1600 2x8G Hynix) but - > as I said - memory testing is flawless. > > Thoughts and ideas most welcome. > > > TIA, > ---------------------------------------------------------------------------- > Tim Daneliuk     tundra@tundraware.com > PGP Key:         http://www.tundraware.com/PGP/ > > _______________________________________________ > 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 " > > > > -- > Michael Schuster > http://recursiveramblings.wordpress.com/ > recursion, n: see 'recursion' -- ---------------------------------------------------------------------------- Tim Daneliuk tundra@tundraware.com PGP Key: http://www.tundraware.com/PGP/