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Re: [Xen-devel] Dom0 Hang for large VCPU counts > PCPU

  • To: "Zulauf, John" <john.zulauf@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
  • Date: Wed, 24 Jan 2007 19:10:39 +0000
  • Delivery-date: Wed, 24 Jan 2007 11:10:55 -0800
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: Acc/6WSeIoDi05TDRUmkOjJugvswfgAAfEFX
  • Thread-topic: [Xen-devel] Dom0 Hang for large VCPU counts > PCPU

On 24/1/07 6:56 pm, "Zulauf, John" <john.zulauf@xxxxxxxxx> wrote:

Using xen-3.0.4-testing with an HVM booting the FC6 DVD on a Core2 Duo (i.e. 2 PCPU) on a 965 chipset
VCPU=17 – works
VCPU=20 – works (takes a very long time)
VCPU=24 – lockup (whole machine, yes I mean Dom0)
VCPU=31 – same
VCPU=32 – same

Have you worked out where it gets stuck? Do many-VCPU domU guests fare better?

 -- Keir
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