From: Jeremy Fitzhardinge <jeremy@goop.org>
To: Andi Kleen <ak@suse.de>
Cc: john.blackwood@ccur.com, linux-kernel@vger.kernel.org,
Jeremy Fitzhardinge <jeremy@xensource.com>,
Roland McGrath <roland@redhat.com>,
bugsy@ccur.com, Andrew Morton <akpm@linux-foundation.org>,
Jan Beulich <jbeulich@novell.com>
Subject: Re: [PATCH] Reading the VDSO area - i386
Date: Tue, 17 Jul 2007 10:51:58 -0700 [thread overview]
Message-ID: <469D01BE.7070204@goop.org> (raw)
In-Reply-To: <200707171948.42054.ak@suse.de>
Andi Kleen wrote:
> On Tuesday 17 July 2007 18:47:56 Jeremy Fitzhardinge wrote:
>
>> 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?
>>
>
> Yes it was from Jan Beulich.
>
Ah, yes. For some reason I can't find it in my archives. Do you have
it queued up?
J
next prev parent reply other threads:[~2007-07-17 17:53 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-17 16:23 [PATCH] Reading the VDSO area - i386 John Blackwood
2007-07-17 16:47 ` Jeremy Fitzhardinge
2007-07-17 17:48 ` Andi Kleen
2007-07-17 17:51 ` Jeremy Fitzhardinge [this message]
2007-07-17 17:57 ` Andi Kleen
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