From owner-freebsd-hackers Thu Feb 11 02:20:06 1999 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id CAA24472 for freebsd-hackers-outgoing; Thu, 11 Feb 1999 02:20:06 -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 CAA24454 for ; Thu, 11 Feb 1999 02:20:02 -0800 (PST) (envelope-from toor@y.dyson.net) Received: (qmail 19090 invoked from network); 11 Feb 1999 10:19:58 -0000 Received: from dyson.iquest.net (HELO y.dyson.net) (198.70.144.127) by iquest3.iquest.net with SMTP; 11 Feb 1999 10:19:58 -0000 Received: (from root@localhost) by y.dyson.net (8.9.1/8.9.1) id FAA03822; Thu, 11 Feb 1999 05:19:58 -0500 (EST) Message-Id: <199902111019.FAA03822@y.dyson.net> Subject: Re: portability of shm, mmap, pipes and socket IPC In-Reply-To: <199902101959.LAA85684@apollo.backplane.com> from Matthew Dillon at "Feb 10, 99 11:59:05 am" To: dillon@apollo.backplane.com (Matthew Dillon) Date: Thu, 11 Feb 1999 05:19:58 -0500 (EST) Cc: tlambert@primenet.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 Matthew Dillon said: > :> true on all implementations that I know of. It is also appropriate - > :> the validity of the mmap()'d data only extends to the logical end of > :> file. > : > :Yes, yes, that's not the problem. > : > :The problem is that INN apparently still fails when using mmap without > :msync. The utility of msync is overrated; the code does not actually > :do what the manual page claims it does, in any case. > > 'apparently still fails'. In otherwords, you aren't sure whether > it's a bug in INN or a bug in the OS. You don't know why exactly > INN is not working, but you are blaming FreeBSD. > > There could be a bug in FreeBSD, but unless someone can track it down > a little better then "Well, this one program doesn't work so it MUST > be a bug in FreeBSD", there isn't much we can do about it now is there! > From where I sit, I don't see any bugs. > I would like to respectfully petition a modification of the above attitude, in the sense that if an API works for one (and/or many other) OSes, there is a significant chance of a FreeBSD bug. Whether or not I acted on various known bugs, I still considered them to be so, until proven otherwise. -- 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