From owner-svn-src-all@FreeBSD.ORG Tue Oct 27 10:19:21 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 377311065679; Tue, 27 Oct 2009 10:19:21 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from mail.zoral.com.ua (skuns.zoral.com.ua [91.193.166.194]) by mx1.freebsd.org (Postfix) with ESMTP id 9C38F8FC1F; Tue, 27 Oct 2009 10:19:20 +0000 (UTC) Received: from deviant.kiev.zoral.com.ua (root@deviant.kiev.zoral.com.ua [10.1.1.148]) by mail.zoral.com.ua (8.14.2/8.14.2) with ESMTP id n9RAJGqB033937 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 27 Oct 2009 12:19:16 +0200 (EET) (envelope-from kostikbel@gmail.com) Received: from deviant.kiev.zoral.com.ua (kostik@localhost [127.0.0.1]) by deviant.kiev.zoral.com.ua (8.14.3/8.14.3) with ESMTP id n9RAJG7D000925; Tue, 27 Oct 2009 12:19:16 +0200 (EET) (envelope-from kostikbel@gmail.com) Received: (from kostik@localhost) by deviant.kiev.zoral.com.ua (8.14.3/8.14.3/Submit) id n9RAJGRE000924; Tue, 27 Oct 2009 12:19:16 +0200 (EET) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: deviant.kiev.zoral.com.ua: kostik set sender to kostikbel@gmail.com using -f Date: Tue, 27 Oct 2009 12:19:16 +0200 From: Kostik Belousov To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Message-ID: <20091027101915.GD2160@deviant.kiev.zoral.com.ua> References: <200910271015.n9RAFwZJ028187@svn.freebsd.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="/4AxN65oSelVOBJV" Content-Disposition: inline In-Reply-To: <200910271015.n9RAFwZJ028187@svn.freebsd.org> User-Agent: Mutt/1.4.2.3i X-Virus-Scanned: clamav-milter 0.95.2 at skuns.kiev.zoral.com.ua X-Virus-Status: Clean X-Spam-Status: No, score=-4.4 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 autolearn=ham version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on skuns.kiev.zoral.com.ua Cc: Subject: Re: svn commit: r198505 - head/sys/vm 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: Tue, 27 Oct 2009 10:19:21 -0000 --/4AxN65oSelVOBJV Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Oct 27, 2009 at 10:15:58AM +0000, Konstantin Belousov wrote: > Author: kib > Date: Tue Oct 27 10:15:58 2009 > New Revision: 198505 > URL: http://svn.freebsd.org/changeset/base/198505 >=20 > Log: > When protection of wired read-only mapping is changed to read-write, of private wired read-only mapping > install new shadow object behind the map entry and copy the pages > from the underlying objects to it. This makes the mprotect(2) call to > actually perform the requested operation instead of silently do nothing > and return success, that causes SIGSEGV on later write access to the > mapping. --/4AxN65oSelVOBJV Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (FreeBSD) iEYEARECAAYFAkrmySMACgkQC3+MBN1Mb4giKQCfcPWCg+UStNc4qGocYZrFFN2W zqEAn1Lb88i/VpbKFiIQw5CqFYWcj8Ve =Z7vS -----END PGP SIGNATURE----- --/4AxN65oSelVOBJV--