From owner-freebsd-questions Wed Jun 12 05:37:52 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id FAA29213 for questions-outgoing; Wed, 12 Jun 1996 05:37:52 -0700 (PDT) Received: from buffnet1.buffnet.net (mmdf@buffnet1.buffnet.net [205.246.19.10]) by freefall.freebsd.org (8.7.5/8.7.3) with SMTP id FAA29207 for ; Wed, 12 Jun 1996 05:37:50 -0700 (PDT) Received: from buffnet7.buffnet.net by buffnet1.buffnet.net id aa24254; 12 Jun 96 8:40 EDT Date: Wed, 12 Jun 1996 08:40:20 -0400 (EDT) From: Stephen Hovey To: Gary Palmer cc: freebsd-questions@freebsd.com Subject: Re: news server In-Reply-To: <28734.834545817@palmer.demon.co.uk> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk On Wed, 12 Jun 1996, Gary Palmer wrote: > T. William Wells wrote in message ID > <4pkliu$nv9@twwells.com>: > > Next question: I hear about this thing called the "sharedactive > > patch". I'm guessing that it has something to do with nnrps > > sharing the history file via memory mapping. Is that correct? > > Does it work with 2.1-RELEASE and later? > > That's debatable. It does for some people, but leads to active file > corruption for others. The cause has yet to be tracked down, as the VM > guru (John Dyson) can't seem to replicate the behaviour causing > corruption on his system(s). > > My current guess is that if your machine doesn't swap/page while > running the sharedactive patch, you'll be okay, but don't quote me on > that, and don't blame me if it doesn't work! That sounds the same as what happens with MMAP