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Date: Tue, 17 Jul 2007 09:47:56 -0700
From: Jeremy Fitzhardinge <jeremy@goop.org>
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To: john.blackwood@ccur.com
CC: linux-kernel@vger.kernel.org, Jeremy Fitzhardinge <jeremy@xensource.com>,
       Andi Kleen <ak@suse.de>, Roland McGrath <roland@redhat.com>,
       bugsy@ccur.com, Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH] Reading the VDSO area - i386
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John Blackwood wrote:
> I was doing some tests that attempt to read the VDSO area of a
> task through either the /proc/pid/mem or ptrace(PTRACE_PEEKTEXT,
> ...) interfaces, and it seems that when the CONFIG_COMPAT_VDSO kernel
> parameter is enabled, we can no longer successfully read the VDSO area
> on i386 kernels.

Thanks.  Someone else noticed this recently, and posted a near-identical
patch.  But I can't seem to find it right now...

Andrew, Andi: do you remember something like this passing by?

    J