From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.91] helo=mail.sourceforge.net) by sc8-sf-list1-new.sourceforge.net with esmtp (Exim 4.43) id 1GT3pi-0005EM-GT for user-mode-linux-devel@lists.sourceforge.net; Thu, 28 Sep 2006 14:54:18 -0700 Received: from [198.99.130.12] (helo=saraswathi.solana.com) by mail.sourceforge.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.44) id 1GT3pi-0003of-22 for user-mode-linux-devel@lists.sourceforge.net; Thu, 28 Sep 2006 14:54:18 -0700 Date: Thu, 28 Sep 2006 17:51:43 -0400 From: Jeff Dike Message-ID: <20060928215143.GC6327@ccure.user-mode-linux.org> References: <2flhcyrq2nr.fsf@saruman.uio.no> <20060928194727.GC8519@inferi.kami.home> Mime-Version: 1.0 Content-Disposition: inline In-Reply-To: <20060928194727.GC8519@inferi.kami.home> Subject: Re: [uml-devel] [Pkg-uml-pkgs] How is user-mode-linux using /dev/shm/? List-Id: The user-mode Linux development list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: user-mode-linux-devel-bounces@lists.sourceforge.net Errors-To: user-mode-linux-devel-bounces@lists.sourceforge.net To: Mattia Dongili Cc: User Mode Linux Maintainers , pkg-sysvinit-devel@lists.alioth.debian.org, Paolo Giarrusso , UML-devel , Petter Reinholdtsen On Thu, Sep 28, 2006 at 09:47:27PM +0200, Mattia Dongili wrote: > On Thu, Sep 28, 2006 at 08:14:32PM +0200, Petter Reinholdtsen wrote: > > To make some writable tmpfs available to those in need of such system, > > and to avoid using /dev/shm/ which is reserved for the shm-functions, > > I just uploaded sysvinit version 2.86.ds1-26. It will mount a tmpfs > > on /lib/init/rw/ that can be used instead. If /lib/init/rw/.ramfs > > exist, that mount point is a tmpfs. I'm not sure if this last change > > will make it into Etch or not, but I hope so, to solve any problems > > with packages previously using /dev/shm/ as a generic tmpfs file > > system. > > Well, I'd actually prefer if you could remove the noexec flag from > /dev/shm. I understand the security reasons given in the bugreport but > I'd prefer avoid having to deal with one more Debian-only (is it?) > thing given the soon to come general freeze. UML needs a non-noexec place to keep a file that will be used as its physical memory. A tmpfs mount is greatly preferred for performance reasons as well as tmpfs being the only filesystem supporting MADV_REMOVE, which is used for memory hotplug. Jeff ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel