From owner-freebsd-current Sat May 16 14:59:57 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id OAA14817 for freebsd-current-outgoing; Sat, 16 May 1998 14:59:57 -0700 (PDT) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from smtp03.primenet.com (daemon@smtp03.primenet.com [206.165.6.133]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id OAA14812 for ; Sat, 16 May 1998 14:59:55 -0700 (PDT) (envelope-from tlambert@usr02.primenet.com) Received: (from daemon@localhost) by smtp03.primenet.com (8.8.8/8.8.8) id OAA00661; Sat, 16 May 1998 14:59:58 -0700 (MST) Received: from usr02.primenet.com(206.165.6.202) via SMTP by smtp03.primenet.com, id smtpd000644; Sat May 16 14:59:50 1998 Received: (from tlambert@localhost) by usr02.primenet.com (8.8.5/8.8.5) id OAA13568; Sat, 16 May 1998 14:59:49 -0700 (MST) From: Terry Lambert Message-Id: <199805162159.OAA13568@usr02.primenet.com> Subject: Re: cvs commit: src/sys/conf param.c src/sys/kern uipc_domain.c uipc_proto.c uipc_socket.c uipc_socket2.c uipc_usrreq.c src/sys/ To: eivind@yes.no (Eivind Eklund) Date: Sat, 16 May 1998 21:59:49 +0000 (GMT) Cc: wollman@khavrinen.lcs.mit.edu, current@FreeBSD.ORG In-Reply-To: <19980516200156.30364@follo.net> from "Eivind Eklund" at May 16, 98 08:01:56 pm X-Mailer: ELM [version 2.4 PL25] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > To get around that problem, I'd expand the VM space in the top half of > the kernel ("somewhere suitable") when it looked like we were "close > to" running out of space (ie, close to the maxsockets case), and > probably start out with maxsockets somewhat smaller. (There are, of > course, a lot of opportunities for high-water/low-water mark magic > around this). > > Does it sound doable? The protection you would gain is statistical; there would still be failure races if you did it (consider a low memory condition; just because you can expand the page mappings doesn't mean that you will have pages available for them to point to). This is why type stable memory is so annoying. 8-). Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message