From owner-freebsd-current Sat Mar 16 11:27:08 1996 Return-Path: owner-current Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id LAA25342 for current-outgoing; Sat, 16 Mar 1996 11:27:08 -0800 (PST) Received: from phaeton.artisoft.com (phaeton.Artisoft.COM [198.17.250.211]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id LAA25337 for ; Sat, 16 Mar 1996 11:27:02 -0800 (PST) Received: (from terry@localhost) by phaeton.artisoft.com (8.6.11/8.6.9) id MAA17708; Sat, 16 Mar 1996 12:22:06 -0700 From: Terry Lambert Message-Id: <199603161922.MAA17708@phaeton.artisoft.com> Subject: Re: Working on the mmap thing To: toor@dyson.iquest.net (John S. Dyson) Date: Sat, 16 Mar 1996 12:22:06 -0700 (MST) Cc: current@FreeBSD.org, mmead@glock.com In-Reply-To: <199603152252.WAA05170@dyson.iquest.net> from "John S. Dyson" at Mar 15, 96 10:52:16 pm X-Mailer: ELM [version 2.4 PL24] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-current@FreeBSD.org X-Loop: FreeBSD.org Precedence: bulk > I have taken Terry's comments into consideration regarding the > MAP_INHERIT thing. Unfortunately, we do alot of mapping in the > current kernel assuming that a map is inherited by default. > My (hopefully) fix for the snapshot is to by default inherit > for mappings that are MAP_FILE on regular files, and not to > inherit for MAP_FILE on device mappings. This will be an > approximately correct fix. I am working on it, and have > found the 1.2 accelx demo. Will be checking it all out tonight. > I would really like for those that can test it to try it out > before Jordan's snapshot. I would like for us to make > "some" progress on a fix. Watch out -- I screwed up big time; hopefully you interpreted "fork" as "exec" re MAP_INHERIT. I was reading Sun man pages at the time; I have a larger post on the whole thing immediately previous to this one. Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.