From owner-freebsd-current@FreeBSD.ORG Thu Sep 30 18:49:09 2010 Return-Path: Delivered-To: freebsd-current@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 43129106564A for ; Thu, 30 Sep 2010 18:49:09 +0000 (UTC) (envelope-from rwatson@FreeBSD.org) Received: from cyrus.watson.org (cyrus.watson.org [65.122.17.42]) by mx1.freebsd.org (Postfix) with ESMTP id 1E5788FC1C for ; Thu, 30 Sep 2010 18:49:09 +0000 (UTC) Received: from [192.168.2.105] (host86-161-142-69.range86-161.btcentralplus.com [86.161.142.69]) by cyrus.watson.org (Postfix) with ESMTPSA id 2E61B46B2C; Thu, 30 Sep 2010 14:49:07 -0400 (EDT) Mime-Version: 1.0 (Apple Message framework v1081) Content-Type: text/plain; charset=us-ascii From: "Robert N. M. Watson" In-Reply-To: <4CA4D496.6080604@icyb.net.ua> Date: Thu, 30 Sep 2010 19:49:05 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: <99D3F3AD-27C1-45C4-B1FC-FFC8A63AF94D@FreeBSD.org> References: <4CA4D496.6080604@icyb.net.ua> To: Andriy Gapon X-Mailer: Apple Mail (2.1081) Cc: freebsd-current@FreeBSD.org Subject: Re: sysctls in kern_shutdown: add twin tunables X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 30 Sep 2010 18:49:09 -0000 On 30 Sep 2010, at 19:19, Andriy Gapon wrote: > http://people.freebsd.org/~avg/kern_shutdown-tunables.diff >=20 > The above patch adds twin tunables for the following (R/W) sysctls: > - debug.debugger_on_panic > - debug.trace_on_panic > - kern.sync_on_panic >=20 > This seems useful to me, but I am not sure if I am not missing = something > important. E.g. security-wise. > It seems that I am not paranoid enough often times. This change seems fine to me. Our trust model assumes that loader.conf = will be properly protected (or rather, that if you don't protect = loader.conf properly, you should expect unfortunate results). Robert=