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Subject: Re: [ANNOUNCE] 3.0-rt4
From: Peter Zijlstra <peterz@infradead.org>
To: "Nikita V. Youshchenko" <yoush@cs.msu.su>
Cc: Thomas Gleixner <tglx@linutronix.de>, LKML <linux-kernel@vger.kernel.org>,
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Date: Thu, 28 Jul 2011 10:44:37 +0200
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On Thu, 2011-07-28 at 12:24 +0400, Nikita V. Youshchenko wrote:
> 
> (*) we need >1G of memory for data buffers, and have too much legacy 
> software components so moving to 64bit system is not practical within 
> available resource 

You can run a complete 32bit userspace on a 64bit kernel without any
problems.