Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935344AbYBUXBW (ORCPT ); Thu, 21 Feb 2008 18:01:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754057AbYBUXBN (ORCPT ); Thu, 21 Feb 2008 18:01:13 -0500 Received: from agminet01.oracle.com ([141.146.126.228]:53929 "EHLO agminet01.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753571AbYBUXBL (ORCPT ); Thu, 21 Feb 2008 18:01:11 -0500 Date: Thu, 21 Feb 2008 14:58:44 -0800 From: Joel Becker To: Ian Campbell Cc: Jeremy Fitzhardinge , "H. Peter Anvin" , Jody Belka , linux-kernel@vger.kernel.org, Ingo Molnar , Thomas Gleixner , "Eric W. Biederman" , Andi Kleen , Mika Penttila Subject: Re: 2.6.25-rc1 xen pvops regression Message-ID: <20080221225844.GA7644@mail.oracle.com> Mail-Followup-To: Ian Campbell , Jeremy Fitzhardinge , "H. Peter Anvin" , Jody Belka , linux-kernel@vger.kernel.org, Ingo Molnar , Thomas Gleixner , "Eric W. Biederman" , Andi Kleen , Mika Penttila References: <20080218104025.GA15899@ca-server1.us.oracle.com> <1203458366.26910.15.camel@cthulhu.hellion.org.uk> <47BBDA20.8030105@zytor.com> <1203497511.26910.39.camel@cthulhu.hellion.org.uk> <47BCA275.7000504@goop.org> <1203546597.26910.74.camel@cthulhu.hellion.org.uk> <47BDEA11.6010302@goop.org> <47BDEB57.5040203@zytor.com> <47BDEF36.8000903@goop.org> <1203631956.28436.4.camel@cthulhu.hellion.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1203631956.28436.4.camel@cthulhu.hellion.org.uk> X-Burt-Line: Trees are cool. X-Red-Smith: Ninety feet between bases is perhaps as close as man has ever come to perfection. User-Agent: Mutt/1.5.17+20080114 (2008-01-14) X-Brightmail-Tracker: AAAAAQAAAAI= X-Brightmail-Tracker: AAAAAQAAAAI= X-Whitelist: TRUE X-Whitelist: TRUE Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1615 Lines: 43 On Thu, Feb 21, 2008 at 10:12:36PM +0000, Ian Campbell wrote: > > On Thu, 2008-02-21 at 13:37 -0800, Jeremy Fitzhardinge wrote: > > H. Peter Anvin wrote: > > >> Still curious about why a pagetable page is ending up in that range > > >> though. Seems like it shouldn't be possible, since we shouldn't be > > >> allowed to allocate from those pages, at least until the DMI probe > > >> has happened... Unless the early allocator is only excluded from > > >> e820 reserved pages, which would cause a problem on systems which > > >> don't reserve the DMI space... HPA? > > >> > > > > > > I thought the problem was a Xen-provided pagetable from before Linux > > > started? > > > > Hm, I don't think so. The domain-builder pagetable is put after the > > kernel, so it shouldn't be under 1M. > > I can confirm that it is Linux which is allocating it. The call path: Also, I have older kernels (2.6.24-rc era) that run Just Fine. I haven't changed my dom0 at all. Joel -- "There is no more evil thing on earth than race prejudice, none at all. I write deliberately -- it is the worst single thing in life now. It justifies and holds together more baseness, cruelty and abomination than any other sort of error in the world." - H. G. Wells Joel Becker Principal Software Developer Oracle E-mail: joel.becker@oracle.com Phone: (650) 506-8127 -- 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/