From owner-freebsd-bugs@FreeBSD.ORG Wed Jun 10 04:40:09 2015 Return-Path: Delivered-To: freebsd-bugs@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 07A4A345 for ; Wed, 10 Jun 2015 04:40:09 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id E54151EF7 for ; Wed, 10 Jun 2015 04:40:08 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.14.9/8.14.9) with ESMTP id t5A4e8Br012452 for ; Wed, 10 Jun 2015 04:40:08 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 200725] Panic during port build under 10.1-Release Unrecoverable machine check exception Date: Wed, 10 Jun 2015 04:40:09 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 10.1-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: dodo1@videotron.ca X-Bugzilla-Status: Closed X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_status resolution Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 10 Jun 2015 04:40:09 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200725 fossette changed: What |Removed |Added ---------------------------------------------------------------------------- Status|New |Closed Resolution|--- |FIXED --- Comment #2 from fossette --- Thanks Andriy! This HARDWARE ERROR didn't help me much at first, but after further Internet searches and the knowledge of high speed processor timings from a previous job I had, I happen to find a nice workaround for this problem. Indeed, it's hardware related, but IMO, the software should be more helpful to flag the solution. When I purchased my computer just a few months back, I went through all the nice BIOS options offered to me. Without going to the extremes, I accepted the (modest) boost features that were offered to me. My FreeBSD is stored on an M.2 SSD drive, so I suspected that there could possibly exist a timing issue on the bus when signals are exchanged between the CPU, the DRAM and the SRAM. So, I disabled any BIOS settings related to cache prefetch and CPU boost. Everything now seems to run smoothly because I was able to build all the ports that I had problems with earlier. Thanks again! I'm a happy FreeBSD camper again! Dominique. -- You are receiving this mail because: You are the assignee for the bug.