From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755478AbYBWMgy (ORCPT ); Sat, 23 Feb 2008 07:36:54 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752377AbYBWMgr (ORCPT ); Sat, 23 Feb 2008 07:36:47 -0500 Received: from mta-1.ms.rz.RWTH-Aachen.DE ([134.130.7.72]:54050 "EHLO mta-1.ms.rz.rwth-aachen.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753030AbYBWMgq (ORCPT ); Sat, 23 Feb 2008 07:36:46 -0500 Date: Sat, 23 Feb 2008 13:37:08 +0100 From: Arnd Hannemann Subject: Re: [Xen-devel] [PATCH] let XEN depend on PAE In-reply-to: <47BF266F.5020806@nets.rwth-aachen.de> To: Jeremy Fitzhardinge Cc: Linux Kernel Mailing List , xen-devel@lists.xensource.com, Chris Wright Message-id: <47C01374.5030608@nets.rwth-aachen.de> MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-15 Content-transfer-encoding: 7BIT X-IronPort-AV: E=Sophos;i="4.25,394,1199660400"; d="scan'208";a="51793165" References: <47BEAB48.7050900@nets.rwth-aachen.de> <47BEFA4C.6030400@goop.org> <47BEFE55.7020703@nets.rwth-aachen.de> <47BF1B8F.5090701@goop.org> <47BF266F.5020806@nets.rwth-aachen.de> User-Agent: Thunderbird 2.0.0.6 (X11/20071022) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Arnd Hannemann wrote: > Jeremy Fitzhardinge wrote: >> Arnd Hannemann wrote: >>> This is with 2.6.24.2, but latest-git looks the same: >>> I also tried with 2.6.23 which crashes instantly, without any output >>> of the guest. >>> >> I'm not too surprised. Non-PAE Xen is a bit of a rarity, and it only >> gets tested rarely. Chris Wright did spend some time on it a while ago, >> but I don't know that its had any real attention since. I've been >> making sure non-PAE compiles, but I've been lax about testing it. >> This is the first usermode exec, I guess? The backtrace is a bit odd; >> I've never seen a problem in move_page_tables before. > > Yes its trying to execute the first script in initramfs, I also tried with initramdisk > and got a similar error. (move_page_tables also involved) > >> Does "xm dmesg" tell you what Xen is complaining about? You may need to >> compile with debug=y in Config.mk. > > (XEN) mm.c:645:d44 Non-privileged (44) attempt to map I/O space 00000000 > > I will recompile with debug=y and post the output. I recompiled with debug=y but no more information than above message... [snip] Arnd