From owner-freebsd-embedded@freebsd.org Tue Mar 8 23:55:24 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 9241DAC82C7 for ; Tue, 8 Mar 2016 23:55:24 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: from mail-ig0-x22c.google.com (mail-ig0-x22c.google.com [IPv6:2607:f8b0:4001:c05::22c]) (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 5D5A4999; Tue, 8 Mar 2016 23:55:24 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: by mail-ig0-x22c.google.com with SMTP id z8so31420511ige.0; Tue, 08 Mar 2016 15:55:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc; bh=SRqHRuZGVslPHWuY+HUHBNqeR08tSonYPEcXsQZZETc=; b=g3KqI0zFXJbU3KRK/ouBRfs8UCFCf7eSA83OMgwK1/3Pf0NJixFsu+LjiFPfnyE6Sk KUIc3HRC/FOI67CdbFKI5J99jaD49Qwlqn4rJaQ9jT2g2O5HeTBQjf5Au8kWu6EeOil5 3jfqk2TIsNcFQg3kIlEX91LdT8ZQ1o7ZPY68TgsYmISnWS1paNNH6k2i+6vjEL2liWTx Sl2jPu1heT6zIfqMdPVQDVYrwVYCMqbKzeUDKEuoGdY1vJwGo+yufr7aLAb84BCTPmj4 PEVXJ+Ev6mJV+yjiyu4hnI1Rp7SAwhV2vnCw4nIpe4flu+DLtITuKspYA+Db4AqTjJ8K 59LA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc; bh=SRqHRuZGVslPHWuY+HUHBNqeR08tSonYPEcXsQZZETc=; b=H7A1TnCDw8uHW6fHuoABK04tiy3OINrpMob/vSB4kDWsfyoPacbSGVPKMdQFFSR+rT LWl2dfqNYQagV8D6tc6VrwL24xlEIaB02ccrIhky8/7p02Co08pw1fCts9+CM9ipgKyJ Zk1yG4ujd+hCZ1Ipqh7s7XN5OXj3leSD2cznD35I+JJNEePvUk3wGHriGSWqeLJJIiO/ ZAC2i4HsCQ65SXTNkTBjrCfCpVvgRaDQKUmswvxk+d5CdE971t6ygKodrN5c2o+we7P+ 8S+TGUyZ/i71dZFVvonMZjFg2SMV7uMmDNCThow9Db2z/DVhCbBVpu1gIdE3k0fG75Us p16w== X-Gm-Message-State: AD7BkJJ473WjsET/ujmtKyNZyGJ6rbFRTu4JY0wgOItSxwXh5XHJe32xSM3+rsMfWJu4758Nf3GrTTik1Zu3qg== MIME-Version: 1.0 X-Received: by 10.50.43.134 with SMTP id w6mr20321784igl.22.1457481323817; Tue, 08 Mar 2016 15:55:23 -0800 (PST) Received: by 10.36.14.19 with HTTP; Tue, 8 Mar 2016 15:55:23 -0800 (PST) In-Reply-To: References: <1457473674.1406.46.camel@freebsd.org> Date: Tue, 8 Mar 2016 15:55:23 -0800 Message-ID: Subject: Re: ? about kernel size.. From: Adrian Chadd To: Brad Walker Cc: Ian Lepore , "freebsd-embedded@freebsd.org" Content-Type: text/plain; charset=UTF-8 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: Tue, 08 Mar 2016 23:55:24 -0000 Hi, If someone wanted to bring up freebsd on an mmu-less platform then I'd say go for it, but you'd have to crime out a lot of code and functionality to make it work. Honestly you'd likely be better off getting a microkernel type thing going and then bring over the minimum set of useful things (say the usb and network stacks) which don't really require much VM clue to operate. the filesystem code may be a bit more challenging to bring in as you're going to have to crime a bunch of VM specific things out, so it may not be worth it. -adrian