From owner-svn-src-all@FreeBSD.ORG Mon Feb 16 14:21:23 2015 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 7913BD65; Mon, 16 Feb 2015 14:21:23 +0000 (UTC) Received: from fep25.mx.upcmail.net (fep25.mx.upcmail.net [62.179.121.45]) by mx1.freebsd.org (Postfix) with ESMTP id 248C9D89; Mon, 16 Feb 2015 14:21:21 +0000 (UTC) Received: from edge03.upcmail.net ([192.168.13.238]) by viefep25-int.chello.at (InterMail vM.8.01.05.05 201-2260-151-110-20120111) with ESMTP id <20150216142113.BOOZ16167.viefep25-int.chello.at@edge03.upcmail.net>; Mon, 16 Feb 2015 15:21:13 +0100 Received: from [192.168.0.23] ([178.84.134.112]) by edge03.upcmail.net with edge id t2MC1p0172Rg3Ey012MCqh; Mon, 16 Feb 2015 15:21:13 +0100 X-SourceIP: 178.84.134.112 Message-ID: <54E1FCD0.6000500@rainbow-runner.nl> Date: Mon, 16 Feb 2015 15:21:04 +0100 From: Koop Mast User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 MIME-Version: 1.0 To: Konstantin Belousov , src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r278473 - in head/sys: amd64/amd64 amd64/include amd64/vmm contrib/dev/acpica/include i386/i386 i386/include x86/acpica x86/include x86/x86 x86/xen References: <201502092100.t19L0vsv010944@svn.freebsd.org> In-Reply-To: <201502092100.t19L0vsv010944@svn.freebsd.org> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 16 Feb 2015 14:21:23 -0000 On 9-2-2015 22:00, Konstantin Belousov wrote: > Author: kib > Date: Mon Feb 9 21:00:56 2015 > New Revision: 278473 > URL: https://svnweb.freebsd.org/changeset/base/278473 > > Log: > Add x2APIC support. Enable it by default if CPU is capable. The > hw.x2apic_enable tunable allows disabling it from the loader prompt. Hi Konstantin, This commit broke my Sandybridge laptop. If x2APIC is enabled the kernel freezes after the "ACPI APIC Table: <_ASUS_ NoteBook>" line is printed. I can't get much information out of it since I couldn't get into the kernel debugger nor has the machine a serial cable. I did notice that "x2APIC" is listed in the CPU Features2 list, but for the cpu's it reports "x2APIC: 0". I don't know if this has to do with disabled x2APIC or some hardware/bios issue? -Koop Verbose dmesg with x2APIC disabled: https://people.freebsd.org/~kwm/dmesg-x2apic.txt