From owner-freebsd-embedded@freebsd.org Wed Mar 9 01:38:38 2016 Return-Path: Delivered-To: freebsd-embedded@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 8B250AC8BB1 for ; Wed, 9 Mar 2016 01:38:38 +0000 (UTC) (envelope-from brad2000@gmail.com) Received: from mail-vk0-x231.google.com (mail-vk0-x231.google.com [IPv6:2607:f8b0:400c:c05::231]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 44297ED0; Wed, 9 Mar 2016 01:38:38 +0000 (UTC) (envelope-from brad2000@gmail.com) Received: by mail-vk0-x231.google.com with SMTP id k1so39413816vkb.0; Tue, 08 Mar 2016 17:38:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc; bh=YHLD2Hmc0jvxvWzvpe4ihFvUBDuPkkQMLxYlrDQoA3Q=; b=QsW6UpbV+Q0o2YyjQa+c2FWq9oiIKxzGUclS9J+gBcwpdXgrbqgjBg6FGomd7FNNGZ ieBTg2SU/Fu9nP8W8CendIBE3mJiAb5uwcV6ewhn1LFIV//zNyywUEWyey0aUkxr+KSw kuLqI3JL+snwFkjeYc+TKnRJZkt0Mw9I95TV9OwQnejl8Qu92peM+834xPOBw05KeUuq 4yiHrYK0sZN20hT78hqv3Fdp6kNwEyy4thcwOfNFZhH5NBL+8UGwQAq5B7BtiksjLdip /8L7pbBnwSdwBFdi9odHG7aVoL/3AvpEBq+/+3DAx7WuhvSNUrrbsSqnJi2szk/vhwLK rHgQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:sender:in-reply-to:references:date :message-id:subject:from:to:cc; bh=YHLD2Hmc0jvxvWzvpe4ihFvUBDuPkkQMLxYlrDQoA3Q=; b=XsOMMPc54509A28EsOfzwFerqQuoDUkzSSj84qMAbkNlqH82UdHZs9uI6Y2pDs8Y4S dxGhqt00iSNMgC5T6D41t93UvThbDxfa4zvlsqj8307WiW/Y3ZyFLLbGnAw7JeArMhki KRInlOLa1h2C2tqX+6qSUQ5tUQO/hIrqfziQD8s+wT/1TtQe+o7JZ3LYYdDzRJkZQijx XfUA18H3GxMDbBN/w6+5rbhnXTdXu5DzbLEWBH7kesiUqC5d84fQBt69gXuraCaxNHXK 1OX942m561jaoOAmiDGTd9uEm2cYOcbO88DY4JkLw9zlmHXiJuf04YLFXJ40W/MxPGep gG9w== X-Gm-Message-State: AD7BkJIjO73VJGZt3sv2AyOm3TDShhfgtdliNec5rrl4UdUkewH7MoTrvMUDv6lhbrhwfL49cNbvFTE19zXMaQ== MIME-Version: 1.0 X-Received: by 10.31.128.15 with SMTP id b15mr28884783vkd.128.1457487517404; Tue, 08 Mar 2016 17:38:37 -0800 (PST) Sender: brad2000@gmail.com Received: by 10.31.163.18 with HTTP; Tue, 8 Mar 2016 17:38:37 -0800 (PST) In-Reply-To: References: <1457473674.1406.46.camel@freebsd.org> Date: Tue, 8 Mar 2016 18:38:37 -0700 X-Google-Sender-Auth: ejzjxti99HZFqHKk99BtwzxpNm0 Message-ID: Subject: Re: ? about kernel size.. From: Brad Walker To: Warner Losh Cc: Ian Lepore , "freebsd-embedded@freebsd.org" Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.21 X-BeenThere: freebsd-embedded@freebsd.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Dedicated and Embedded Systems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Mar 2016 01:38:38 -0000 One other thing. I'm sure that I could do it but a couple of big issues come to mind. First, for the effort involved, how would I make money? I've got a family to raise and well the bills have to get paid. I truly admire all these people that seem to have copious amounts of time to do work freely. Back when I was a single guy in Silicon Valley, I could do it. But, not now. Lastly, if I invested the time, effort, and money into this, would it be something the community would look favorably on and accept into the source tree? I would hate to see the work not make it into the mainline. Like I said, if Linux can do it then why not FreeBSD? I would love to see this work correctly on FreeBSD. -brad w. On Tue, Mar 8, 2016 at 5:26 PM, Warner Losh wrote: > > > On Tue, Mar 8, 2016 at 2:56 PM, Brad Walker wrote: > >> Correct. >> >> But, are you saying that no engineering has been done on this yet OR no >> amount of engineering could make it work? >> >> For example, I'm pretty well versed in the Solaris kernel stuff and there >> is really no amount of engineering that could make it work in a non-MMU >> environment.. >> >> I was thinking, at least in my mind, is that if Linux can do it certainly >> FreeBSD could if the work was done. Am I incorrect? >> >> > It might be possible. No body has done it. It's a bit of a heavy lift. > > You might be happier looking at a port of retrobsd.org's 2.11 port to > tiny mips devices. > > Warner >