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Message-ID: <471CECD9.3010409@goop.org>
Date: Mon, 22 Oct 2007 11:32:57 -0700
From: Jeremy Fitzhardinge <jeremy@...p.org>
To: dean gaudet <dean@...tic.org>
CC: Nick Piggin <nickpiggin@...oo.com.au>, David Chinner <dgc@....com>,
xfs@....sgi.com, Xen-devel <xen-devel@...ts.xensource.com>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Mark Williamson <mark.williamson@...cam.ac.uk>,
Morten Bøgeskov
<xen-users@...ten.bogeskov.dk>, xfs-masters@....sgi.com
Subject: Re: Interaction between Xen and XFS: stray RW mappings
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
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