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

To: Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>, Jan Beulich <JBeulich@xxxxxxxxxx>
Subject: Re: [Xen-devel] [timer/ticks related] dom0 hang during boot on large 1TB system
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Fri, 18 Dec 2009 17:15:39 +0000
Cc: "kurt.hackel@xxxxxxxxxx" <kurt.hackel@xxxxxxxxxx>, "Xen-devel@xxxxxxxxxxxxxxxxxxx" <Xen-devel@xxxxxxxxxxxxxxxxxxx>
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On 18/12/2009 16:35, "Dan Magenheimer" <dan.magenheimer@xxxxxxxxxx> wrote:

>> So I don't know what
>> scrubbing would be going on during dom0's boot-time
>> calibrations, on any
>> version of Xen, actually.
> Wasn't the async page scrubbing removed post 3.4.0?
> (I think Mukesh's bug was seen on 3.4.0.)  I see
> c/s 19886 in July 2009 is "Remove page-scrub lists
> and async scrubbing"... if that patch were not
> applied, would Mukesh's observed bug make more sense?

Async page scrubbing was for scrubbing pages of dying domains. No domains
are dying while dom0 is still booting.

 -- Keir

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