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.sourceforge.net with esmtp (Exim 4.30) id 1EZNba-0004kg-R6 for user-mode-linux-devel@lists.sourceforge.net; Mon, 07 Nov 2005 23:09:18 -0800 Received: from dsl092-053-140.phl1.dsl.speakeasy.net ([66.92.53.140] helo=grelber.thyrsus.com) by mail.sourceforge.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.44) id 1EZNbZ-0005Lc-B6 for user-mode-linux-devel@lists.sourceforge.net; Mon, 07 Nov 2005 23:09:18 -0800 From: Rob Landley Subject: Re: [uml-devel] Making UML Single Threader References: <200511061723.32848.rob@landley.net> <91A93A3A-FE83-4002-A004-E8FD4AFBAA3C@stanford.edu> In-Reply-To: <91A93A3A-FE83-4002-A004-E8FD4AFBAA3C@stanford.edu> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200511080109.06999.rob@landley.net> Sender: user-mode-linux-devel-admin@lists.sourceforge.net Errors-To: user-mode-linux-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: The user-mode Linux development list List-Post: List-Help: List-Subscribe: , List-Archive: Date: Tue, 8 Nov 2005 01:09:06 -0600 To: user-mode-linux-devel@lists.sourceforge.net Cc: Can Sar On Monday 07 November 2005 23:13, Can Sar wrote: > Hi, > > I am trying to make a 1 thread version of UML that does not need to > be able to support user level programs. Why? Did you ever read Rik van Reil's list of the dumbest patches he's ever seen? This is the first entry in the list: http://www.surriel.com/potm/apr2001.shtml > So I don't care about systemcall interception or anything like that, *blink* *blink* Ok, you want user mode linux, but you don't want it to actually run user processes, nor do want it to be able to intercept system calls. Um... What's left? > I just want a copy of > UML that gets a basic kernel environment running (where I could call > some kernel functions like sys_read or sys_open and then exit) that > never calls fork on the host. vfork, maybe? Have you tried just loading a module into the existing User Mode Linux? > Sorry if this all sounds a bit weird, it's for a research project and > we are trying to port UML to an environment that only supports single > threaded operation. Define "port". (Have you looked at mmu-less linux? Are you saying you haven't got a timer interrupt and can't fake up some kind of green-threads approach like people managed to do under _DOS_?) Rob ------------------------------------------------------- SF.Net email is sponsored by: Tame your development challenges with Apache's Geronimo App Server. Download it for free - -and be entered to win a 42" plasma tv or your very own Sony(tm)PSP. Click here to play: http://sourceforge.net/geronimo.php _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel