We are using pci passthrough with an SCSI Adapter card. The system is: - O.S: Ubuntu 10.04.1 LTS - KVM Packages: kvm 1:84+dfsg-0ubuntu16+0.12.3+noroms+0ubuntu9.2 kvm-pxe 5.4.4-1ubuntu1 qemu-kvm 0.12.3+noroms-0ubuntu9.2 libvirt-bin 0.7.5-5ubuntu27.2 python-libvirt 0.7.5-5ubuntu27.2 libvirt0 0.7.5-5ubuntu27.2 - Kernel 2.6.32.15+drm33.5.iommu recompiled with following options : CONFIG_DMAR=y CONFIG_INTR_REMAP=y - Apparmor is stopped When we started the virtual machine we obtain the following error: char device redirected to /dev/pts/3 device: 04:04.0: driver="pci-assign" host="04:04.0" Failed to assign irq for "04:04.0": Operation not permitted Perhaps you are assigning a device that shares an IRQ with another device? Thanks in advance, Inigo -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html