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[Xen-users] GPLPV xennet bsod when vcpu>15


I installed the signed drivers from
http://wiki.univention.de/index.php?title=Installing-signed-GPLPV-drivers and
I ran into a BSOD on a Windows 2008 Server R2 Enterprise domU with a
large number of vcpu's. The BSOD is related to xennet.sys.

After some trials I found that it runs fine up to 15 cores. From 16 or
more, the BSOD kicks in when booting the domU.

The hardware (4 times  X7550) runs Xen version 4.1.2_05-1.1.1 (abuild@)
(gcc version 4.6.2 (SUSE Linux) (openSUSE 12.1) ).
Dom0: 3.1.9-1.4-xen x86_64
DomU: Windows 2008 Server R2 Enterprise 64b.

This happened with versions and

Is this a known problem?

Best regards,


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