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Re: [Xen-devel] What is the current state of Dom0 kernel support? / 2.6.

To: Pasi Kärkkäinen <pasik@xxxxxx>
Subject: Re: [Xen-devel] What is the current state of Dom0 kernel support? / 2.6.31-rc5 32bit PAE works now!
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date: Mon, 17 Aug 2009 10:51:37 -0700
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On 08/17/09 08:26, Pasi Kärkkäinen wrote:
>> .. and now it boots just fine, no crashes anymore!
>> Thanks a lot!

Ah, good.

> Just for the record I'm still using CONFIG_HIGHPTE=n since I believe that is
> still broken on 32bit.

Yes, it is.  HIGHPTE isn't recommended in general because it imposes a
fairly high performance hit (even without Xen, but worse with).  And,
worse, at the moment I don't have any plausible fix for the bug.  Its
really a left-over from the days of 32-bit machines with much more than
4G of memory; these days you'd use 64-bit.


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