From owner-freebsd-hackers@freebsd.org Fri Mar 11 15:13:52 2016 Return-Path: Delivered-To: freebsd-hackers@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 5111CACB411 for ; Fri, 11 Mar 2016 15:13:52 +0000 (UTC) (envelope-from pfg@FreeBSD.org) Received: from nm4.bullet.mail.bf1.yahoo.com (nm4.bullet.mail.bf1.yahoo.com [98.139.212.163]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 0CB627A1 for ; Fri, 11 Mar 2016 15:13:51 +0000 (UTC) (envelope-from pfg@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1457709225; bh=QA5ARhFIkIxqvdsh1hC7waTnP1l/ruEfVQf128Zb4Zk=; h=From:Subject:To:Date:From:Subject; b=TfYAiMAf8O5i9I6sr9vufBLJfoU/zxrESs/fXGzf1pypZltYWUvXVxv83rMiAXW/JjMoNN7b0zSuCaNTOYBtozI1vlwTvpl9qbvOEiWAxznGtSiBMqUSvwM7bMWA/c1fMHrJ/GE1Jo25j7xGkiW2lbrHATfeI3kwaTTASdIreaOqkh5zDq6SXlB17FH3wHaA4w0DQBS/dKlHM1TOjZIOsTU9TPkVUMi1BJ82lXTqEjEdgMby3S3pwtQ7Id6Qag/RcaGFNrIG2GdqJ+nOSiWJrLfQEkMruJv8T9plaGn15FQH8ou3LsTNKa8jO7mM/VLGTaqJkVfmCDckOy/GR6QIoQ== Received: from [66.196.81.171] by nm4.bullet.mail.bf1.yahoo.com with NNFMP; 11 Mar 2016 15:13:45 -0000 Received: from [68.142.230.64] by tm17.bullet.mail.bf1.yahoo.com with NNFMP; 11 Mar 2016 15:13:45 -0000 Received: from [127.0.0.1] by smtp221.mail.bf1.yahoo.com with NNFMP; 11 Mar 2016 15:13:45 -0000 X-Yahoo-Newman-Id: 65043.27946.bm@smtp221.mail.bf1.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: VZKfyI4VM1niPQsHk2_I7m_6yjDoUNsVDU7bQ2bVrSSLp9E xnCNm3kJHLWS2r0GPwLZhbkL2NZ4ix1jUF9qVafYQx6xrQC02qjIoCHTM97A ikTFWsxwl5YnycQZSBJiX_nojJnk0oAv9oLeSEryACHuKycuE2WL8b52FPTJ pjmrYcjRzvnh5PDsZUHXfK0SAbyDmUFoBNZTGLqVdZ.Y6M.ecIgeSE_zZzcE LjqR2UapujD87X5CENK3BMg2JfKG1imBOQOXts0kg3Ak4yps5Cky.HmSY32M x4tsRCnJ3RlYd.76MF4xoItJG9h0JO9h8YhUPWZfbKvloSe0mqvQFQzvacPR ZZXA2OZK4YNbO6qMLZTp8P_Kmd4k6.9f6WJslBfmk_hdiY__JqYt_JYxL6Yy SYaiy2580nam6rcYs0z5R.Qu7lpVz.SGzXE0yhsOwxbwcy9r4CnlHNZgAaqN NOlrU7aoK6jz6WIbcFaH6GiECekGveBslqy1G7RCGhTycbNTMpR0vOhgAcBp yp5cWIOQ.1Ynh1JmyHdqTENTmes5vhmpoXg-- X-Yahoo-SMTP: xcjD0guswBAZaPPIbxpWwLcp9Unf From: Pedro Giffuni Subject: Re: Advantages of kdbus with enhanced capabilities feature To: FreeBSD Hackers , pavan teja Message-ID: <56E2E0E2.5050202@FreeBSD.org> Date: Fri, 11 Mar 2016 10:14:42 -0500 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 11 Mar 2016 15:13:52 -0000 FWIW; While kdbus seems to be in a somewhat flaky situation in other communities, we still have interest in *some* form of IPC for the kernel, or perhaps something mixed kernel/userland. One such mechanism could be Solaris doors, which were implemented for linux but never caught up much steam: http://www.rampant.org/doors/ I think there was also something interesting done for a microkernel (L4?) and it was made compatible with an Apple's Darwin Mach ports. It's an interesting topic for research, but if you want to do it as a GSoC you will have to discuss this with the mentor from the GSoC ideas page. Pedro.