From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751188AbWJEUJa (ORCPT ); Thu, 5 Oct 2006 16:09:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751189AbWJEUJa (ORCPT ); Thu, 5 Oct 2006 16:09:30 -0400 Received: from centrmmtao03.cox.net ([70.168.83.81]:55699 "EHLO centrmmtao03.cox.net") by vger.kernel.org with ESMTP id S1751188AbWJEUJ3 (ORCPT ); Thu, 5 Oct 2006 16:09:29 -0400 Subject: Re: Free memory level in 2.6.16? From: Steve Bergman To: Andi Kleen Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org In-Reply-To: References: <1160034527.23009.7.camel@localhost> Content-Type: text/plain Date: Thu, 05 Oct 2006 15:10:29 -0500 Message-Id: <1160079029.29452.19.camel@localhost> Mime-Version: 1.0 X-Mailer: Evolution 2.6.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2006-10-05 at 22:01 +0200, Andi Kleen wrote: > > Normally it keeps some memory free for interrupt handlers which > cannot free other memory. But 150MB is indeed a lot, especially > it's only in the ~900MB lowmem zone. > > You could play with /proc/sys/vm/lowmem_reserve_ratio but must > likely some defaults need tweaking. Thank you for the reply, Andi. This kernel is compiled with the .config from the original FC5 release, which used kernel 2.6.15. I just ran "make oldconfig" on it and accepted the defaults. So it is, I believe, a 4GB/4GB split. Does that make a difference? Thanks, Steve Bergman