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RE: [Xen-devel] Test results on Unisys ES7000 64x 256gb using unstablec/

To: "Bill Burns" <bburns@xxxxxxxxxx>, "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx>
Subject: RE: [Xen-devel] Test results on Unisys ES7000 64x 256gb using unstablec/s 16693 on 3.2.0 Release Candidate
From: "Ian Pratt" <Ian.Pratt@xxxxxxxxxxxxx>
Date: Thu, 17 Jan 2008 14:10:22 -0000
Cc: Ian Pratt <Ian.Pratt@xxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, "Carb, Brian A" <Brian.Carb@xxxxxxxxxx>
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Thread-topic: [Xen-devel] Test results on Unisys ES7000 64x 256gb using unstablec/s 16693 on 3.2.0 Release Candidate
> >> No, I have not tried on 3.2.0. Will see if I can at some
> >> point...
> >
> > Also, do you have any more info to share on what actually goes wrong
> when
> > dom0 has 'too much' memory?
> >
> 
> The dom0 kernel spits out messages like the following starting around
> the
> init of cpu1 time, and periodically thereafter.
> 
> Timer ISR/0: Time went backwards: delta=-50206266948
delta_cpu=13733052
> shadow=8186343367 off=13649733458 processed=72042343367
> cpu_processed=21822343367
> 
> Eventually just hanging (or making such slow progress to be
> effectively hung).

How many CPUs does the system have? Does the same large memory issue
occur if you have fewer physical CPUs?

Thanks,
Ian



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