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Re: [Xen-devel] compiling a non-pae dom0 on a dell r710 with too much ra

To: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Subject: Re: [Xen-devel] compiling a non-pae dom0 on a dell r710 with too much ram
From: Mike Sun <msun@xxxxxxxxxx>
Date: Thu, 6 May 2010 20:09:58 -0400
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
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It's based off the kernel.  Reason I can't have PAE is
because I had written some code a while back that touched shadow page
table stuff and I made changes assuming PAE wasn't being used.  I
don't think my code will work with PAE turned on.

On Thu, May 6, 2010 at 8:05 PM, Jeremy Fitzhardinge <jeremy@xxxxxxxx> wrote:
> On 05/06/2010 04:50 PM, Mike Sun wrote:
>> I'm working with Xen 3.2.2 so I believe it does support PAE 32-bit PV 
>> operation
> Yes, it seems to have been dropped in 3.3.
> Which kernel are you using?  I think all recent kernels have also
> dropped support for non-PAE PV operation, so you would probably have to
> go back to a kernel of that era to get non-PAE support.
> But I'm not really sure what relevance PAE has to what you really want
> to test.  Limited memory is a side-effect of non-PAE operation, but if
> that's what you're concerned about you can easily limit memory size
> (either by telling Xen to only use 4G of the system's memory, or by
> limiting dom0 to 4G).
>    J

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