From owner-freebsd-arch Tue Nov 2 6:45:21 1999 Delivered-To: freebsd-arch@freebsd.org Received: from ns1.yes.no (ns1.yes.no [195.204.136.10]) by hub.freebsd.org (Postfix) with ESMTP id 934E515139 for ; Tue, 2 Nov 1999 06:45:15 -0800 (PST) (envelope-from eivind@bitbox.follo.net) Received: from bitbox.follo.net (bitbox.follo.net [195.204.143.218]) by ns1.yes.no (8.9.3/8.9.3) with ESMTP id PAA21553 for ; Tue, 2 Nov 1999 15:45:14 +0100 (CET) Received: (from eivind@localhost) by bitbox.follo.net (8.8.8/8.8.6) id PAA80256 for freebsd-arch@freebsd.org; Tue, 2 Nov 1999 15:45:14 +0100 (MET) Received: from smtp02.primenet.com (smtp02.primenet.com [206.165.6.132]) by hub.freebsd.org (Postfix) with ESMTP id A2B6515433 for ; Tue, 2 Nov 1999 06:43:48 -0800 (PST) (envelope-from rcarter@chomsky.Pinyon.ORG) Received: (from daemon@localhost) by smtp02.primenet.com (8.8.8/8.8.8) id HAA01308; Tue, 2 Nov 1999 07:43:45 -0700 (MST) Received: from ip-26-042.prc.primenet.com(206.165.26.42), claiming to be "chomsky.pinyon.org" via SMTP by smtp02.primenet.com, id smtpd001271; Tue Nov 2 07:43:37 1999 Received: from chomsky.Pinyon.ORG (localhost [127.0.0.1]) by chomsky.pinyon.org (Postfix) with ESMTP id 0AFD67B; Tue, 2 Nov 1999 07:43:36 -0700 (MST) X-Mailer: exmh version 2.1.0 09/18/1999 To: Julian Elischer Cc: freebsd-arch@freebsd.org Subject: Re: Threads models and FreeBSD. (Next Step) In-Reply-To: Message from Julian Elischer of "Tue, 02 Nov 1999 00:59:28 PST." Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Tue, 02 Nov 1999 07:43:36 -0700 From: "Russell L. Carter" Message-Id: <19991102144336.0AFD67B@chomsky.pinyon.org> Sender: owner-freebsd-arch@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG % %Here is an updated version of the rather simplistic requirements for a %threads model for freeBSD. % %It is notable that we already support Linux kernel threads on FreeBSD %better than we support a native threads model. This is because we support %the 'clone' system call through our rfork() code, and that is their basis %for threading. As is common for this group of people, we have not adopted %the Linux approach because it is considered to be 'too simplistic', %assigning a separate kernel schedulable process to run each thread. % %Having said that, Amancio Hasty at one stage wrote a set of threading %primitives to allow Kafe to run on FreeBSD using this scheme of threading, %and Richard Seaman has a port of the Linuxthreads code to freeBSD at his %website, http://lt.tar.com/ . This represents a useful piece of work and Richard seems to have been diverted in recent months, I have a copy of his port made freestanding and building against this weeks -current sitting at http://www.Pinyon.ORG/ace/lthreads-991029.tar.gz This unfortunately does not work on SMP due to some problem with signals, previously it worked fine on some heavy duty applications. It still works fine on -current single processor. Russell To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message