Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755798AbYJ3Bxs (ORCPT ); Wed, 29 Oct 2008 21:53:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752053AbYJ3Bxi (ORCPT ); Wed, 29 Oct 2008 21:53:38 -0400 Received: from mx1.suse.de ([195.135.220.2]:57832 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751554AbYJ3Bxh (ORCPT ); Wed, 29 Oct 2008 21:53:37 -0400 Date: Thu, 30 Oct 2008 02:53:35 +0100 From: Nick Piggin To: Glauber Costa Cc: Avi Kivity , linux-kernel@vger.kernel.org, kvm@vger.kernel.org, aliguori@codemonkey.ws, Jeremy Fitzhardinge , Krzysztof Helt Subject: Re: [PATCH] regression: vmalloc easily fail. Message-ID: <20081030015335.GA18041@wotan.suse.de> References: <1225234513-3996-1-git-send-email-glommer@redhat.com> <20081028232944.GA3759@wotan.suse.de> <20081029094856.GD4269@poweredge.glommer> <20081029101145.GB5953@wotan.suse.de> <49083B14.6070402@redhat.com> <20081029104333.GD5953@wotan.suse.de> <20081029220737.GF11532@poweredge.glommer> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20081029220737.GF11532@poweredge.glommer> User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1378 Lines: 36 On Wed, Oct 29, 2008 at 08:07:37PM -0200, Glauber Costa wrote: > On Wed, Oct 29, 2008 at 11:43:33AM +0100, Nick Piggin wrote: > > On Wed, Oct 29, 2008 at 12:29:40PM +0200, Avi Kivity wrote: > > > 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 > > > > Yes. > > > > > > > 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. > > > > Hmm. The free area search could be buggy... > Do you want me to grab any specific info of it? Or should I just hack myself > randomly into it? I'll probably have some time for that tomorrow. I can take a look at it, in the next day or two. If you hack at it, and find the problem I wouldn't be upset ;) -- 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/