From owner-svn-src-head@freebsd.org Fri Aug 19 03:28:58 2016 Return-Path: Delivered-To: svn-src-head@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 CCC6ABBF6B4 for ; Fri, 19 Aug 2016 03:28:58 +0000 (UTC) (envelope-from wlosh@bsdimp.com) Received: from mail-it0-x243.google.com (mail-it0-x243.google.com [IPv6:2607:f8b0:4001:c0b::243]) (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 9024C1867 for ; Fri, 19 Aug 2016 03:28:58 +0000 (UTC) (envelope-from wlosh@bsdimp.com) Received: by mail-it0-x243.google.com with SMTP id d65so844687ith.0 for ; Thu, 18 Aug 2016 20:28:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bsdimp-com.20150623.gappssmtp.com; s=20150623; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc; bh=NTanaiVjvrtP3VCPIm9mlNsY9Ob+83e+XZDe2wlZvKM=; b=jHLPATfY1unby5UD+nw0F9fF1mXEmFE4EpmyOP2cIJOpFbqdWLN6OJaUB3BUbYyWrX Lp3kLRS37uwcTEC+Nv+zsyQKu2XaSa7cnibRWqlj6toTiDOJgr9DMZN75o33HCj01Y+n AWUI/TNkktkHYPjTuqTHMoPPME/12ibP8WIwh99gidl/OH/PcC2ynIpc/AIynHWTnyQW rnrdbBgewxNITItPJIFf5JP/6Z9QMkIBSFAu8VeQ4zdrRp2AXf2zPI3QlDNkSEPtQUih O7Ek9a9/n4c/5OqRgF6iAQxckySSlZFLAAmGBy5C5CGagftLticJ2B3fIILpgCfklnw/ VGng== 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:from :date:message-id:subject:to:cc; bh=NTanaiVjvrtP3VCPIm9mlNsY9Ob+83e+XZDe2wlZvKM=; b=YkG2XbtqHC1NNiPYIjB1bfjkyQ3096lgOUD3sR21YMTxiWN2FH4beVpVus77Jdbrrl sEaS4hrp3xaNHHYmnAVGg4GpIzviy/Y/YITOjZYFAFsQYiCR3c2iOYLv5CU181P0aLoC ap6yXQmDvGHf1Wkw2elPw2KcKuZIP3k5oR+74esVxSnvjFeJToWVwYMbcb3VTjF6qU+B a2hkCbW0q48XiCnkRdWedLU14JMZkr76YO1ouow5/Iud9D23PMr+kiMe+xxfdBSAX99m 12SwiRWOBgKCBoaUamRaUAJihTPFvcOXGqzO+RutRDWGBc7+C/FQ4FyjP2EorDiXPxeA EAow== X-Gm-Message-State: AEkoousNDoV0gTmNKHkg8kuoXvr3WFzhumjWRt25+hT0k6cNOqcWf2bMSGNKfjxdBTjhR2tX6GOOdEAurDN3UA== X-Received: by 10.36.149.193 with SMTP id m184mr3680559itd.94.1471577337707; Thu, 18 Aug 2016 20:28:57 -0700 (PDT) MIME-Version: 1.0 Sender: wlosh@bsdimp.com Received: by 10.36.65.7 with HTTP; Thu, 18 Aug 2016 20:28:57 -0700 (PDT) X-Originating-IP: [69.53.245.200] In-Reply-To: <0d6c2e45-e4da-9bb7-a50c-212135d9ac4f@freebsd.org> References: <201608152038.u7FKc2NL026330@repo.freebsd.org> <2065331.KaGOSftJhd@ralph.baldwin.cx> <0d6c2e45-e4da-9bb7-a50c-212135d9ac4f@freebsd.org> From: Warner Losh Date: Thu, 18 Aug 2016 21:28:57 -0600 X-Google-Sender-Auth: 3LzdAaRGVF3reeQGMZ4CC4gFNp8 Message-ID: Subject: Re: svn commit: r304187 - in head: . share/man/man4 sys/conf sys/dev/mcd sys/modules sys/modules/mcd To: Julian Elischer Cc: John Baldwin , src-committers , "svn-src-all@freebsd.org" , "svn-src-head@freebsd.org" Content-Type: text/plain; charset=UTF-8 X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 19 Aug 2016 03:28:58 -0000 On Thu, Aug 18, 2016 at 12:50 AM, Julian Elischer wrote: > On 16/08/2016 4:54 AM, John Baldwin wrote: >> >> On Monday, August 15, 2016 08:38:02 PM John Baldwin wrote: >>> >>> Author: jhb >>> Date: Mon Aug 15 20:38:02 2016 >>> New Revision: 304187 >>> URL: https://svnweb.freebsd.org/changeset/base/304187 >>> >>> Log: >>> Remove the mcd(4) driver for Mitsumi CD-ROM players. >>> This is a driver for a pre-ATAPI ISA CD-ROM adapter. As noted in >>> the manpage, this driver is only useful as a backend to cdcontrol to >>> play audio CDs since it doesn't use DMA, so its data performance is >>> "abysmal" (and that was true in the mid 90's). >> >> No one stepped up to test patches for it either when I last posted patches >> to >> convert it from timeout(9) to callout(9). I have a few more drivers that >> are >> both very old and that people have no business using in 12 (think ISA >> adapters that don't do DMA and can't be used with pccard) that I will be >> removing over the next little while. I brought up a list of drivers on >> arch@ >> a couple of years ago and the conversation drifted off into the weeds >> about >> trimming GENERIC, etc. No one objected to the specific drivers I listed >> though (and I got a few pleas of "please remove"). If someone shows up >> desperately clutching an ISA adapter they can always dig up the source >> from >> svn and deal with forward porting it for whatever API changes have >> happened >> since it was removed. > > > I would imagine any machine still holding one of these probably has not > enough memory to run FreeBSD. > > would we still run in 2MB? With insane levels of tuning, we can run in 32MB userland that can do things. Even 64MB is tight w/o some tuning. 16MB is almost certainly right out except for very specialized situations. 2MB? We can't even load the loader in that :(. Oh, and all these memory configs are only possible if you tweak the loader's block cache... Warner