From owner-svn-src-all@FreeBSD.ORG Mon Nov 9 22:52:48 2009 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 1C4A41065670; Mon, 9 Nov 2009 22:52:48 +0000 (UTC) (envelope-from ed@hoeg.nl) Received: from palm.hoeg.nl (mx0.hoeg.nl [IPv6:2001:7b8:613:100::211]) by mx1.freebsd.org (Postfix) with ESMTP id B13488FC19; Mon, 9 Nov 2009 22:52:47 +0000 (UTC) Received: by palm.hoeg.nl (Postfix, from userid 1000) id 3D1411CCF3; Mon, 9 Nov 2009 23:52:44 +0100 (CET) Date: Mon, 9 Nov 2009 23:52:44 +0100 From: Ed Schouten To: Jun Kuriyama Message-ID: <20091109225244.GB64905@hoeg.nl> References: <200911090254.nA92sG1G005921@svn.freebsd.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="jq0ap7NbKX2Kqbes" Content-Disposition: inline In-Reply-To: <200911090254.nA92sG1G005921@svn.freebsd.org> User-Agent: Mutt/1.5.20 (2009-06-14) Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r199067 - in head/sys: amd64/amd64 i386/i386 X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.5 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, 09 Nov 2009 22:52:48 -0000 --jq0ap7NbKX2Kqbes Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi Jun, * Jun Kuriyama wrote: > - Add hw.clflush_disable loader tunable to avoid panic (trap 9) at > map_invalidate_cache_range() even if CPU is not Intel. > - This tunable can be set to -1 (default), 0 and 1. -1 is same as > current behavior, which automatically disable CLFLUSH on Intel CPUs > without CPUID_SS (should be occured on Xen only). You can specify 1 > when this panic happened on non-Intel CPUs (such as AMD's). Because > disabling CLFLUSH may reduce performance, you can try with setting 0 > on Intel CPUs without SS to use CLFLUSH feature. > =20 > Reviewed by: kib > Reported by: karl, kuriyama > Related to: kern/138863 Unfortunately it seems to lock up my Intel Core 2 Duo boxes. Systems affected: - Apple MacBook3,1 - Dell SC440 --=20 Ed Schouten WWW: http://80386.nl/ --jq0ap7NbKX2Kqbes Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (FreeBSD) iEYEARECAAYFAkr4nTwACgkQ52SDGA2eCwX8VgCfZRjMLAy1XnVmZ53rTpZj94zB WAIAnimLe4w887ojteHfFQpE9bruUecF =1chi -----END PGP SIGNATURE----- --jq0ap7NbKX2Kqbes--