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Date:	Wed, 13 Jan 2010 10:08:59 +0800
From:	Américo Wang <xiyou.wangcong@...il.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: 2.6.33 pagemap endless read loop

On Wed, Jan 13, 2010 at 12:28 AM, Andi Kleen <andi@...stfloor.org> wrote:
>> Hmm, could you please try:
>>
>>      time cat /proc/self/pagemap >/dev/null
>>
>
> I stopped it after a minute of CPU time...
>
> Obviously reading 47bits of zeroes take a long time.
>

Yeah, but this just proves it is not endless, doesn't it? :)

Thanks.
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