Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 23 Oct 2001 17:59:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 23 Oct 2001 17:59:08 -0400 Received: from garrincha.netbank.com.br ([200.203.199.88]:60178 "HELO netbank.com.br") by vger.kernel.org with SMTP id ; Tue, 23 Oct 2001 17:58:51 -0400 Date: Tue, 23 Oct 2001 19:59:08 -0200 (BRST) From: Rik van Riel X-X-Sender: To: Dave McCracken Cc: Linux Kernel Subject: Re: Issue with max_threads (and other resources) and highmem In-Reply-To: <91510000.1003871155@baldur> Message-ID: X-spambait: aardvark@kernelnewbies.org X-spammeplease: aardvark@nl.linux.org MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 23 Oct 2001, Dave McCracken wrote: > --On Tuesday, October 23, 2001 18:52:35 -0200 Rik van Riel > wrote: > > > I submitted a patch a while ago to set the number way lower, > > which was accepted by Alan and in the -ac kernels. A few months > > later Linus followed and changed the limit in his kernels, too. > > Ok, that's what I get for reading the comment and not deciphering the > code... *sigh* So my updated comment got backed out again ;/ Linus, what do you have against correct documentation ? ;) > But there's still a problem. The value for mempages is all of physical > memory including highmem, so a machine with a sufficient amount of high > memory can set max_threads to a value way too high, given that most if not > all of the resources it's trying to limit have to come from normal memory > and not high memory. Indeed, this needs to be fixed. A sane upper limit for max_threads would be 10000, this also keeps in mind the fact that we only have 32000 possible PIDs, some of which could be taken by task groups, etc... regards, Rik -- DMCA, SSSCA, W3C? Who cares? http://thefreeworld.net/ (volunteers needed) http://www.surriel.com/ http://distro.conectiva.com/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/