From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alex Williamson Subject: Re: Re: 3525MB RAM Limit Date: Thu, 09 Apr 2009 09:48:48 -0600 Message-ID: <1239292128.6184.152.camel@bling> References: <6835906b0904061959o674ec4f4rc136aea6db9a46d6@mail.gmail.com> <200904062246.42285.iggy@theiggy.com> <6835906b0904090807s45edddd8h46a16885a6e5cad2@mail.gmail.com> <200904091039.21427.iggy@theiggy.com> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Cc: Daniel Scott , kvm@vger.kernel.org To: Brian Jackson Return-path: Received: from g5t0007.atlanta.hp.com ([15.192.0.44]:1552 "EHLO g5t0007.atlanta.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755816AbZDIPs4 (ORCPT ); Thu, 9 Apr 2009 11:48:56 -0400 In-Reply-To: <200904091039.21427.iggy@theiggy.com> Sender: kvm-owner@vger.kernel.org List-ID: On Thu, 2009-04-09 at 10:39 -0500, Brian Jackson wrote: > I was thinking of a bug when using large pages, which may not be your problem. > There have been other reports recently, with workarounds, that are similar, > just not the exact same number you have. > > some subjects to look for: > * Can't boot guest with more than 3585MB when using large pages > There was a patch from Marcelo that was supposed to fix it. > * kvm-84 and guests with more than 3536 MB Ram? > there were suggestions to make sure to use the correct bios and the OP stated > that upgrading his kernel actually fixed the problem > > I could swear there was another one, but maybe I'm thinking of the IRC > channel. If you are still unable to get it to work, you should reply back with > more info. Kernel version, KVM version, etc. It could also be related to the guest trimming away memory due to the way we used to report the MTRRs. This would show up in dmesg on the guest. Try the latest kvm by hand and see if the problem goes away. Thanks, Alex