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[Xen-users] Instability with vcpu > 1

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] Instability with vcpu > 1
From: Colin Davis <cdavis@xxxxxxxxxxx>
Date: Thu, 19 Mar 2009 12:59:32 -0400
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Good Afternoon,

I'm having a problem running Xen 3.3 on Ubuntu 8.04 X64, running 32 bit virtual machines. Whenever I set vcpus to be greater than 1 on any of the vms, I see terrible instability- Multiple reboots each hour.

I've tried setting every combination of acpi=off awiotlb=128 pci=noacpi and noirqbalance

The Kernel on the Dom0 is 2.6.24-16-xen x86_64
The DomU is 2.6.24-19-xen i686

The physical hosts have 6-8GB of RAM, 80% of which I'm passing through directly to the DomU.
Any thoughts or help would be appreciated.

-Colin


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