linux-kernel - Re: [PATCH 1 of 9] Lock the entire mm to prevent any mmu related operation to happen

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Message-ID: <Pine.LNX.4.64.0804161134360.12296@schroedinger.engr.sgi.com>
Date:	Wed, 16 Apr 2008 11:35:38 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Robin Holt <holt@....com>
cc:	Andrea Arcangeli <andrea@...ranet.com>, akpm@...ux-foundation.org,
	Nick Piggin <npiggin@...e.de>,
	Steve Wise <swise@...ngridcomputing.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>, linux-mm@...ck.org,
	Kanoj Sarcar <kanojsarcar@...oo.com>,
	Roland Dreier <rdreier@...co.com>,
	Jack Steiner <steiner@....com>, linux-kernel@...r.kernel.org,
	Avi Kivity <avi@...ranet.com>, kvm-devel@...ts.sourceforge.net,
	general@...ts.openfabrics.org, Hugh Dickins <hugh@...itas.com>
Subject: Re: [PATCH 1 of 9] Lock the entire mm to prevent any mmu related
 operation to happen

On Wed, 16 Apr 2008, Robin Holt wrote:

> I don't think this lock mechanism is completely working.  I have
> gotten a few failures trying to dereference 0x100100 which appears to
> be LIST_POISON1.

How does xpmem unregistering of notifiers work?
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