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RE: [Xen-devel] [timer/ticks related] dom0 hang during boot on large 1TB

To: Jan Beulich <JBeulich@xxxxxxxxxx>, mukesh.rathor@xxxxxxxxxx
Subject: RE: [Xen-devel] [timer/ticks related] dom0 hang during boot on large 1TB system
From: Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>
Date: Tue, 22 Dec 2009 08:05:07 -0800 (PST)
Cc: kurt.hackel@xxxxxxxxxx, Jeremy Fitzhardinge <jeremy@xxxxxxxx>, Xen-devel@xxxxxxxxxxxxxxxxxxx, Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
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> From: Jan Beulich [mailto:JBeulich@xxxxxxxxxx]
> >>> Dan Magenheimer <dan.magenheimer@xxxxxxxxxx> 22.12.09 16:30 >>>
> >Mukesh's work has been on a 32-bit dom0.
> Which seems quite odd a combination - 1Tb of memory, but a 32-bit
> Dom0 -, which is why initially I didn't even consider the 
> possibility. I'm
> afraid you're asking for more trouble with this.

Indeed.  Oracle expects to move to a 64-bit dom0 in a "future"
release, but we have to make the 32-bit dom0 work until then.

Our default configuration specifies dom0_mem=xxx which I would
assume would eliminate most or all of the "trouble" you are
referring to, but, Mukesh, could you confirm what dom0_mem
is set to?

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