Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755153AbXJVSdL (ORCPT ); Mon, 22 Oct 2007 14:33:11 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753238AbXJVSc6 (ORCPT ); Mon, 22 Oct 2007 14:32:58 -0400 Received: from gw.goop.org ([64.81.55.164]:49695 "EHLO mail.goop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753198AbXJVSc6 (ORCPT ); Mon, 22 Oct 2007 14:32:58 -0400 Message-ID: <471CECD9.3010409@goop.org> Date: Mon, 22 Oct 2007 11:32:57 -0700 From: Jeremy Fitzhardinge User-Agent: Thunderbird 2.0.0.5 (X11/20070727) MIME-Version: 1.0 To: dean gaudet CC: Nick Piggin , David Chinner , xfs@oss.sgi.com, Xen-devel , Linux Kernel Mailing List , Mark Williamson , =?ISO-8859-1?Q?Morten_?= =?ISO-8859-1?Q?B=F8geskov?= , xfs-masters@oss.sgi.com Subject: Re: Interaction between Xen and XFS: stray RW mappings References: <470FA7C3.90404@goop.org> <20071014225618.GN23367404@sgi.com> <4712A254.4090604@goop.org> <200710151415.07248.nickpiggin@yahoo.com.au> <471C1A61.1010001@goop.org> In-Reply-To: X-Enigmail-Version: 0.95.3 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 760 Lines: 19 dean gaudet wrote: > sounds like a bug in xen to me :) > I explained at the head of this thread how and why Xen works in this manner. It's certainly a change from native execution; whether you consider it to be a bug is a different matter. But it turns out that leaving stray mappings around on pages which get later used in special ways is a bad idea, and can manifest in all kinds of random unpleasant ways. Getting a clear error out of Xen is probably nicest way to discover and debug this problem. J - 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/