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

To: "Iyer, Anoop" <anoop.iyer@xxxxxxx>, <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-users] GPLPV + 32-bit Win2003R2 + Xen-3.3 unstable
From: "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
Date: Fri, 12 Dec 2008 11:47:14 +1100
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Thread-index: Aclb2cUBLcp+iIhrS/y000qyhCM16QAF5LHw
Thread-topic: [Xen-users] 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
> When I load it up with ttcp from that client, it locks up again with
> 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.

Can you please try disabling checksum offload and large send offload in
the advanced properties of the adapter?



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