From owner-freebsd-arch@FreeBSD.ORG Sat Jun 19 08:22:56 2010 Return-Path: Delivered-To: freebsd-arch@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0456C106564A for ; Sat, 19 Jun 2010 08:22:55 +0000 (UTC) (envelope-from gljennjohn@googlemail.com) Received: from fg-out-1718.google.com (fg-out-1718.google.com [72.14.220.153]) by mx1.freebsd.org (Postfix) with ESMTP id 4A4828FC18 for ; Sat, 19 Jun 2010 08:22:54 +0000 (UTC) Received: by fg-out-1718.google.com with SMTP id l26so376577fgb.13 for ; Sat, 19 Jun 2010 01:22:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:received:received:date:from:to:cc:subject :message-id:in-reply-to:references:reply-to:x-mailer:mime-version :content-type:content-transfer-encoding; bh=P01N1H1deSEpkon3kv7EIh3s0HxjcL2WP5JAXu5QPtA=; b=FfnddcdQ/dQH/X5pLTRuWUqWWaLmjHQzhdsqd9Fw3C01mjqFSKqGPI5M9dv+7hQLzO r4m5yr/FTccy+2R0CgLamMs8ZpYTztfzLiVrTsUaejG83/Ps1QsFIUrv9xffZHKk1Ush uQOF3zp3dJdDotA7uosd79NPK3II+HxzYCC4Y= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=date:from:to:cc:subject:message-id:in-reply-to:references:reply-to :x-mailer:mime-version:content-type:content-transfer-encoding; b=Aad2mhf97xWa77Mv8tG+rX79k7tqR8xM2zKOFmMsd9dcOHZ1psRLo7f07CiGqQ87O0 A10E19peM0pvI6w7ABAJPdsnqcQy3WiHvFjDgoNygrNdTcbLkEMKAMYAzWXflwAiC1f6 WEBU2VYwe0zL8CyofA5YLAUiUkAsUusDOvNzI= Received: by 10.87.48.18 with SMTP id a18mr3411057fgk.53.1276935773093; Sat, 19 Jun 2010 01:22:53 -0700 (PDT) Received: from ernst.jennejohn.org (p578E3275.dip.t-dialin.net [87.142.50.117]) by mx.google.com with ESMTPS id z10sm3735913fka.31.2010.06.19.01.22.52 (version=TLSv1/SSLv3 cipher=RC4-MD5); Sat, 19 Jun 2010 01:22:52 -0700 (PDT) Date: Sat, 19 Jun 2010 10:22:51 +0200 From: Gary Jennejohn To: Andriy Gapon Message-ID: <20100619102251.6db25d41@ernst.jennejohn.org> In-Reply-To: <4C1C7686.3050206@freebsd.org> References: <4C1C7686.3050206@freebsd.org> X-Mailer: Claws Mail 3.7.5 (GTK+ 2.18.7; amd64-portbld-freebsd9.0) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: freebsd-arch@freebsd.org Subject: Re: KDB_TRACE in GENERIC X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: gljennjohn@googlemail.com List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 19 Jun 2010 08:22:56 -0000 On Sat, 19 Jun 2010 10:49:26 +0300 Andriy Gapon wrote: > > I propose to add the following options into GENERIC (perhaps only i386 and amd64): > > options KDB > options KDB_TRACE > options KDB_UNATTENDED > options SC_DISABLE_KDBKEY # <- not sure about his one > > This would increase kernel size only by a fraction, would not result in any POLA > violations (KDB_UNATTENDED, SC_DISABLE_KDBKEY) and would provide a useful service. > > Currently we get many panic reports that are almost impossible to analyze > because there is no stack trace. Especially this is true for panics at > installation time, when people use GENERIC from release media and do not have > ability to try a custom kernel. > > What do you think? > Seems like a good idea to me. -- Gary Jennejohn (gj@)