From owner-freebsd-arch@FreeBSD.ORG Wed Jan 12 13:20:00 2005 Return-Path: Delivered-To: freebsd-arch@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 27CDE16A4CE for ; Wed, 12 Jan 2005 13:20:00 +0000 (GMT) Received: from darkness.comp.waw.pl (darkness.comp.waw.pl [195.117.238.136]) by mx1.FreeBSD.org (Postfix) with ESMTP id B554E43D1D for ; Wed, 12 Jan 2005 13:19:59 +0000 (GMT) (envelope-from pjd@darkness.comp.waw.pl) Received: by darkness.comp.waw.pl (Postfix, from userid 1009) id EB190AC942; Wed, 12 Jan 2005 14:19:50 +0100 (CET) Date: Wed, 12 Jan 2005 14:19:50 +0100 From: Pawel Jakub Dawidek To: arch@freebsd.org Message-ID: <20050112131950.GN795@darkness.comp.waw.pl> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="qd/SZIFVu+MYwfCR" Content-Disposition: inline User-Agent: Mutt/1.4.2i X-PGP-Key-URL: http://people.freebsd.org/~pjd/pjd.asc X-OS: FreeBSD 5.2.1-RC2 i386 Subject: "Kernel" dumps. X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 Jan 2005 13:20:00 -0000 --qd/SZIFVu+MYwfCR Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi. We need improve our dumps, really. First of all they are too big, because we dump whole memory. Second of all, they are not safe for our users. We should implement two things: - dumping only kernel pages (dump is smaller and without sensitive data from userland processes); - add a malloc(9) flag M_NOUMP which will prevent from dumping pages with sensitive data (e.g. GBDE keys). Any VM-skilled volunteers? Pretty please... --=20 Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! --qd/SZIFVu+MYwfCR Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFB5SP2ForvXbEpPzQRAvKEAKDE46M4F9z2Ak+qdmfqev2x46IXVgCgjxVn h7y2JG/mGaBlOwuefOFDTUU= =a6m4 -----END PGP SIGNATURE----- --qd/SZIFVu+MYwfCR--