From owner-freebsd-hackers Wed Feb 10 13:34:19 1999 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id NAA22027 for freebsd-hackers-outgoing; Wed, 10 Feb 1999 13:34:19 -0800 (PST) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from iquest3.iquest.net (iquest3.iquest.net [209.43.20.203]) by hub.freebsd.org (8.8.8/8.8.8) with SMTP id NAA22022 for ; Wed, 10 Feb 1999 13:34:17 -0800 (PST) (envelope-from toor@y.dyson.net) Received: (qmail 2044 invoked from network); 10 Feb 1999 21:34:14 -0000 Received: from dyson.iquest.net (HELO y.dyson.net) (198.70.144.127) by iquest3.iquest.net with SMTP; 10 Feb 1999 21:34:14 -0000 Received: (from root@localhost) by y.dyson.net (8.9.1/8.9.1) id QAA02537; Wed, 10 Feb 1999 16:34:07 -0500 (EST) Message-Id: <199902102134.QAA02537@y.dyson.net> Subject: Re: portability of shm, mmap, pipes and socket IPC In-Reply-To: <199902101742.JAA17281@implode.root.com> from David Greenman at "Feb 10, 99 09:42:16 am" To: dg@root.com Date: Wed, 10 Feb 1999 16:34:07 -0500 (EST) Cc: tlambert@primenet.com, dillon@apollo.backplane.com, kuku@gilberto.physik.RWTH-Aachen.DE, hackers@FreeBSD.ORG From: "John S. Dyson" Reply-To: dyson@iquest.net X-Mailer: ELM [version 2.4ME+ PL38 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG David Greenman said: > >> >:The overall size of the shared memory segment is limited to that > >> >: which can fit in the kernels virtual address space; this > >> >: artificially restricts the maximum size. > >> > >> That isn't true and hasn't been true for several years in FreeBSD. > > > >Are you sure? > > Yes, I'm quite sure. > DG's statement is accurate. I removed that very artificial restriction over 2 yrs ago. There is no reason to use KVA space for data that the kernel never needs to see. Correcting that deficit was pretty much on my list as soon as I saw that problem when FreeBSD made it an official part of the distribution. -- John | Never try to teach a pig to sing, dyson@iquest.net | it makes one look stupid jdyson@nc.com | and it irritates the pig. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message