From owner-freebsd-current@FreeBSD.ORG Tue Mar 25 22:57:32 2014 Return-Path: <owner-freebsd-current@FreeBSD.ORG> Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id BD4FAB68 for <freebsd-current@freebsd.org>; Tue, 25 Mar 2014 22:57:32 +0000 (UTC) Received: from mail-pa0-f46.google.com (mail-pa0-f46.google.com [209.85.220.46]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 91368FD1 for <freebsd-current@freebsd.org>; Tue, 25 Mar 2014 22:57:32 +0000 (UTC) Received: by mail-pa0-f46.google.com with SMTP id kp14so1086103pab.19 for <freebsd-current@freebsd.org>; Tue, 25 Mar 2014 15:57:31 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:sender:subject:mime-version:content-type:from :in-reply-to:date:cc:content-transfer-encoding:message-id:references :to; bh=92EcNstUZF2JTKpbxJkOADyaabUoAK8uoFWLJN4/OCM=; b=IZ25eMt2p6KGXr6ZsYv4GDdscIX8OGoRLLiiIqUduE4MtsPT4zXAgpkE4q3tTYh5Im +fNauUS2fWgngFb+w/hwV6ykdTukOhUOa1+x4bnHKhkKg8czhfSJdIrcVIZcnFa5Z2id VFzvUSSfsw3aJU3SdRV8nYULCYYA9d52AG1W7rki7ycL4KxO47NHjUb7fSmXsGhtFS+9 BF1twUIlOMzF+ApawdGTMWT/JBjC1McMTDumGWAM5AUgxMMS/jEHlYYoUxB9WvtPlMQw xXtNxZ02ORHc4lb2kuPzMbzpkNcJ9TPANgYuNtFcDYYm47sf1RZwz18DxCMZi54dT8l8 SNKg== X-Gm-Message-State: ALoCoQkweXqGGmHNEFh94d0UkS4O73z5U1ENLTx2inKmNDGR2B3X2k90rKsbkUnvDeWClSTgBQmr X-Received: by 10.68.196.226 with SMTP id ip2mr81475550pbc.106.1395788251672; Tue, 25 Mar 2014 15:57:31 -0700 (PDT) Received: from [10.64.26.35] (dc1-prod.netflix.com. [69.53.236.251]) by mx.google.com with ESMTPSA id tf10sm49661669pbc.70.2014.03.25.15.57.30 for <multiple recipients> (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 25 Mar 2014 15:57:30 -0700 (PDT) Sender: Warner Losh <wlosh@bsdimp.com> Subject: Re: is it Ok to strip kernel & modules? Mime-Version: 1.0 (Mac OS X Mail 7.2 \(1874\)) Content-Type: text/plain; charset=windows-1252 From: Warner Losh <imp@bsdimp.com> X-Priority: 3 (Normal) In-Reply-To: <8406480.20140326021403@serebryakov.spb.ru> Date: Tue, 25 Mar 2014 16:57:28 -0600 Content-Transfer-Encoding: quoted-printable Message-Id: <D0B25583-5003-4B7B-8AC7-F042C4EDC92B@gmail.com> References: <8406480.20140326021403@serebryakov.spb.ru> To: lev@FreeBSD.org X-Mailer: Apple Mail (2.1874) Cc: freebsd-current@freebsd.org X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Discussions about the use of FreeBSD-current <freebsd-current.freebsd.org> List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-current>, <mailto:freebsd-current-request@freebsd.org?subject=unsubscribe> List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current/> List-Post: <mailto:freebsd-current@freebsd.org> List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help> List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, <mailto:freebsd-current-request@freebsd.org?subject=subscribe> X-List-Received-Date: Tue, 25 Mar 2014 22:57:32 -0000 On Mar 25, 2014, at 4:14 PM, Lev Serebryakov <lev@FreeBSD.org> wrote: > Hello, Freebsd-current. >=20 > Why our kernel, even built without DEBUG, is not stripped? It could = sabe > 1.5Mb out of 8Mb for "router-like" (network, wifi, some netgraph, UFS, = NFS and > USB) kernel... >=20 > But maybe, here are some reasons not to strip it? If you strip the kernel, then you won=92t be able to use anything that = opens up kernel memory to read answers out of it. I think this is all wrapped in = ksyms, so you could grep for it. Be thankful that ifconfig no longer is on this = list :) Warner