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[Xen-users] GPLPV + 32-bit Win2003R2 + Xen-3.3 unstable

  • To: <xen-users@xxxxxxxxxxxxxxxxxxx>
  • From: "Iyer, Anoop" <anoop.iyer@xxxxxxx>
  • Date: Thu, 11 Dec 2008 15:45:22 -0600
  • Delivery-date: Thu, 11 Dec 2008 13:46:15 -0800
  • List-id: Xen user discussion <xen-users.lists.xensource.com>
  • Thread-index: Aclb2cUBLcp+iIhrS/y000qyhCM16Q==
  • Thread-topic: GPLPV + 32-bit Win2003R2 + Xen-3.3 unstable

I'm using the GPLPV drivers 0.9.11 with excellent network speedup on a
64-bit Windows 2003 R2 VM.

When I try the same under a 32-bit Windows 2003 R2 VM, the VM locks up
at the first sign of network traffic; even a ping from an external
client will bring it down. Using xentop I can see 100% cpu utilization
for that VM, and the vnc console becomes unresponsive.

With 0.9.12-pre4, the VM can take ping traffic from an external client.
When I load it up with ttcp from that client, it locks up again with the
same symptoms.

Removing /gplpv from boot.ini and restoring the qemu NIC makes the
problem disappear.

My s/w config is

Xen-3.3.0 release, 64-bit
SLES10 SP2 Dom0, 64-bit
Windows Server 2003 R2 Enterprise with SP2, 32-bit
GPLPV 0.9.11 / 0.9.12-pre4

Any pointers will be appreciated.


Anoop Iyer
MTS Product Development Engineer
AMD Performance CoE | Virtualization

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