From owner-freebsd-questions@freebsd.org Wed Oct 24 13:06:44 2018 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 6A5AF107A077 for ; Wed, 24 Oct 2018 13:06:44 +0000 (UTC) (envelope-from dch@skunkwerks.at) Received: from out3-smtp.messagingengine.com (out3-smtp.messagingengine.com [66.111.4.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 13D56874F0 for ; Wed, 24 Oct 2018 13:06:43 +0000 (UTC) (envelope-from dch@skunkwerks.at) Received: from compute7.internal (compute7.nyi.internal [10.202.2.47]) by mailout.nyi.internal (Postfix) with ESMTP id 6A9BB20D9E for ; Wed, 24 Oct 2018 02:30:44 -0400 (EDT) Received: from web6 ([10.202.2.216]) by compute7.internal (MEProxy); Wed, 24 Oct 2018 02:30:44 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=skunkwerks.at; h=message-id:from:to:mime-version:content-transfer-encoding :content-type:date:in-reply-to:references:subject; s=fm3; bh=IAM YvdShziLAThdqNaGs2HAx3fA+4/7XzkEKy17AhEI=; b=urlflaufwrMwhLjls9z PFvy9U873j9WJsLR0w2QqrJdDZxZd/qExKyGyoVY2Z7TR8t1MEvFIlbahPFqu9sj x/n/ZMb1yR/GAyEn9ClQB8Lu6vcc59EVJxIHgP8PCOfBcfrV0UxsiHPmAR1G4GuQ d17o0KSH3WSzmnytzqTH2Y1pgTxKFOl9IvP0IhwgwYWpthfztTeX9AXmatDMQiuz y/gmJhzKLjlp8YR/HRyKOKzwmbrhRZtl3o313MwQ5dJd4ujkY01eZDh8wHkgSMkC iAP2H45KLwMM+2pocBu+TP7VosCQs3DuksHnrheOWHelCtEU96rs+aKC8vLCiMxu 2tA== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :subject:to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender :x-sasl-enc; s=fm1; bh=IAMYvdShziLAThdqNaGs2HAx3fA+4/7XzkEKy17Ah EI=; b=AmZ/LxWYQRv2ZhPbRbsFBGLLBGva7lGYJaUg/LBSz+we4uXgYKbYi3DXf 5ayMqEU/skXK4O6JCqwVnA46Hi0c/v9+UvoWMMoMM/RR65J1FLzFxAG76z+Jvhrc MdcWrDzKIGNQakibljtdnfXPkcqQTA3QbNP8hp0xIYJK8y31NP87VPBZ1PwMBQVb zUycD2G3MjmjxdPHWSqey2TBrBOhlji8/nvwMeTiGcHYugJJm4eXnGci75idkiTc E83MrykrxzA9sMtqTBHTrLwbffTrZqW4TKs1BIux+uXR6zDJ157CAaI7k/MjpIH+ tTMuRmJeWm3rbFpBcFnYuQSK+QkAw== X-ME-Sender: X-ME-Proxy: Received: by mailuser.nyi.internal (Postfix, from userid 99) id 5F5E74172; Wed, 24 Oct 2018 02:30:43 -0400 (EDT) Message-Id: <1540362643.1933933.1552636744.138E61D3@webmail.messagingengine.com> From: Dave Cottlehuber To: freebsd-questions@freebsd.org MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="utf-8" X-Mailer: MessagingEngine.com Webmail Interface - ajax-b315a288 Date: Wed, 24 Oct 2018 08:30:43 +0200 In-Reply-To: <142be589bc88406eeeade749b72d765f@kathe.in> References: <142be589bc88406eeeade749b72d765f@kathe.in> Subject: Re: freebsd layered with chez-scheme X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 24 Oct 2018 13:06:44 -0000 On Tue, 23 Oct 2018, at 08:04, Mayuresh Kathe wrote: > would my understanding of systems (as below) be right? > > there's the freebsd kernel which is layered upon with the libc > and other supporting libraries like libm. > this combination is layered upon with the userland with code > in place to provide security? > > given the above, would i be right in assuming that a similar > setup can be used, say with something like chez-scheme to > provide the userland? > > so essentially, the kernel would be layered with the libraries, > which would support chez-scheme running in multi-threaded mode. > then the rest of the userland would be a set of scheme programs. > > obviously, that would not be unix due to it's non-posix nature > as well as difference in philosophy, but it could be the start > of something new. > > ~mayuresh Hi Mayuresh, Although not exactly what you had in mind, this reminds me of rump kernels: https://www.netbsd.org/docs/rump/sysproxy.html https://www.bsdcan.org/2009/schedule/attachments/104_rumpdevel.pdf I've not heard of a scheme-flavoured variant yet though, but ling http://www.erlangonxen.org/ should give you an idea of what people have tried. A+ Dave