From owner-freebsd-hackers@freebsd.org Wed Aug 1 15:25:31 2018 Return-Path: Delivered-To: freebsd-hackers@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 D73B410606C9 for ; Wed, 1 Aug 2018 15:25:30 +0000 (UTC) (envelope-from markjdb@gmail.com) Received: from mail-pl0-x243.google.com (mail-pl0-x243.google.com [IPv6:2607:f8b0:400e:c01::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 56A6E792D2 for ; Wed, 1 Aug 2018 15:25:30 +0000 (UTC) (envelope-from markjdb@gmail.com) Received: by mail-pl0-x243.google.com with SMTP id ba4-v6so278165plb.11 for ; Wed, 01 Aug 2018 08:25:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=jud+0yxNoBhqBlyrr2UmfHcSQWZS5zl3aS3zk8UQO8A=; b=O5yDO/YSw7kEIXQBy9IUoiMOdDfQpEXKINAlDHBoVXVWWnC5SY0GQwibi4Vp2Kq3oY WuBoQPkMuDauTraiWXQ7h+ejByzSMiRd35lcRRzSIvtpk9vowRew+ybNY5o5ROVgbXtI 0fqiPw5266Huw61n94DN6Nd5Pt3fLCdYV5oDAfJM3xbYbNWayC2ua/t8QrlTD8BLwcfh AzI+dtg0W4J+5GRnutyIECQyzsX92KQ7u2dbidygxfj6+nSRSgnNWv7c8zM8DB5iAg3u KjWszUPM/+KTLlyocYfpm/1FkiqND0z3qap5GfuZo1EQnYwBlQ9HR/besRGiR6DCDTu2 sE2Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to:user-agent; bh=jud+0yxNoBhqBlyrr2UmfHcSQWZS5zl3aS3zk8UQO8A=; b=bR8dyBNg2GJNpaNQyviCuDjKDe1csWo3sn7M5NxG1d/FueALBNFBKS9Eeh0L54ARsU hyxqRy+3fRKX1vwsK3sVUCqeTFzuoAvf8jnJ/VUPytLF5D0cUEX1E5MuyDIq3o1dzsaj I/z6U5fuQSgQgwrSaLq2E4ppgMsZiUm0dQkqZBiaK1yq1HVe4+4+XvCdVOEu1rz7UNz9 zwsVYmudNct0r+hLg8EG9Gq59kxR76RQkObAzpTJpoFOHbxu+rI/mN6UkkZsm1IevXI6 /0ZTduyxtDEUItWamubCElniE7gcB/wu0fdtXDB6h472ngoZ1KcMTQl4shOCXSmsxhhn 32GQ== X-Gm-Message-State: AOUpUlHtaDo/vUKrCnHbotyufUVbbmp0s4GKBI2UV5o+xwqABp8r3KgD WYpzGxnkpoJfhI/tKuQ11pwyepwg X-Google-Smtp-Source: AAOMgpcK72idoHJ0yuyKGH8/lE/W+dQgUXago2+zILzXr0XQSmNjJdcol0fjGWivE7jVeY+g0XFbvQ== X-Received: by 2002:a17:902:24a5:: with SMTP id w34-v6mr11098120pla.285.1533137129280; Wed, 01 Aug 2018 08:25:29 -0700 (PDT) Received: from raichu (toroon0560w-lp130-09-70-52-224-239.dsl.bell.ca. [70.52.224.239]) by smtp.gmail.com with ESMTPSA id k79-v6sm20971512pfa.22.2018.08.01.08.25.27 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 01 Aug 2018 08:25:28 -0700 (PDT) Sender: Mark Johnston Date: Wed, 1 Aug 2018 11:25:25 -0400 From: Mark Johnston To: Warner Losh Cc: "freebsd-hackers@freebsd.org" Subject: Re: COMPAT_43 users? Message-ID: <20180801152525.GB97237@raichu> References: <20180731214920.GA95743@raichu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 01 Aug 2018 15:25:31 -0000 On Wed, Aug 01, 2018 at 04:15:09AM -0600, Warner Losh wrote: > Comments say it's needed for Linux emulation and for running FreeBSD 1, 2, > or 3 binaries. It's still compiled for PowerPC kernels. Despite it's name, > it looks like removing it would be somewhat complicated... It's not required for Linux emulation anymore. > On Tue, Jul 31, 2018 at 6:39 PM, Julian Elischer wrote: > > > On 1/8/18 5:49 am, Mark Johnston wrote: > > > >> The COMPAT_43 kernel option, which enables syscall support for 4.3BSD > >> binaries, hasn't been enabled in the standard kernel configs for well > >> over a decade, and doesn't appear to be a dependency of any other kernel > >> features. Nonetheless, the kernel contains quite a bit of code to > >> support this option. Does anyone use it in modern versions of FreeBSD > >> or have any arguments for keeping it? > >> _______________________________________________ > >> freebsd-hackers@freebsd.org mailing list > >> https://lists.freebsd.org/mailman/listinfo/freebsd-hackers > >> To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org > >> " > >> > >> It is useful for really ancient jails I believe. The person I would trust > > on this is jhb. (CC'd) > > > > I occasionally like to run a freebsd-1.1 jail.. but While I enable it I am > > not sure if I need it. > > > > > > > > > > > > _______________________________________________ > > freebsd-hackers@freebsd.org mailing list > > https://lists.freebsd.org/mailman/listinfo/freebsd-hackers > > To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org" > > > _______________________________________________ > freebsd-hackers@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org"