From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: [PATCH] regression: vmalloc easily fail. Date: Wed, 29 Oct 2008 12:29:40 +0200 Message-ID: <49083B14.6070402@redhat.com> References: <1225234513-3996-1-git-send-email-glommer@redhat.com> <20081028232944.GA3759@wotan.suse.de> <20081029094856.GD4269@poweredge.glommer> <20081029101145.GB5953@wotan.suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Glauber Costa , linux-kernel@vger.kernel.org, kvm@vger.kernel.org, aliguori@codemonkey.ws, Jeremy Fitzhardinge , Krzysztof Helt To: Nick Piggin Return-path: Received: from mx2.redhat.com ([66.187.237.31]:42584 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753038AbYJ2K3w (ORCPT ); Wed, 29 Oct 2008 06:29:52 -0400 In-Reply-To: <20081029101145.GB5953@wotan.suse.de> Sender: kvm-owner@vger.kernel.org List-ID: Nick Piggin wrote: > Hmm, spanning <30MB of memory... how much vmalloc space do you have? > > From the original report: > VmallocTotal: 122880 kB > VmallocUsed: 15184 kB > VmallocChunk: 83764 kB So it seems there's quite a bit of free space. Chunk is the largest free contiguous region, right? If so, it seems the problem is unrelated to guard pages, instead the search isn't finding a 1-page area (with two guard pages) for some reason, even though lots of free space is available. -- error compiling committee.c: too many arguments to function