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Reproduce the bug based on the following rhel6 versions.

libvirt-0.10.2-29.el6.x86_64
qemu-kvm-rhev-0.12.1.2-2.412.el6.x86_64
kernel-2.6.32-425.el6.x86_64

There are no vfio driver in RHEL6. Please ignore the following steps. Reproduce steps only are assigning one VF from VFs pool. They have nothing to with VFIO.


# lsmod |grep vfio_pci
vfio_pci               36474  0 
vfio                   20777  2 vfio_iommu_type1,vfio_pci

2. make sure the following parameter of vfio module is "Y".
# cat /sys/module/vfio_iommu_type1/parameters/allow_unsafe_interrupts 
Y

*** This bug has been marked as a duplicate of bug 1007754 ***