On Fri, Feb 26, 2010 at 03:53:48PM +0100, Alexander Graf wrote: > > On 26.02.2010, at 15:12, Alexander Graf wrote: > > > Hi list, > > > > While trying to upgrade some internal infrastructure to qemu-kvm-0.12 I stumbled across this really weird problem that I see with current qemu-kvm git too: > > > > I start qemu-kvm using: > > > > ./qemu-system-x86_64 -L ../pc-bios/ -m 512 -net nic,model=virtio -net tap,ifname=tap0,script=/bin/true -snapshot sles11.qcow2 -vnc :0 -monitor stdio > > > > The system boots up just fine, networking works. > > > > On the qemu monitor I then issue: > > > > (qemu) pci_add auto storage file=/tmp/image.raw,if=virtio > > > > after which I get a fully functional virtio block device, but the network stops sending/receiving packets. > > > > The same thing with qemu-kvm-0.10 works just fine. Has anyone seen this before? > > Same thing happens when hotplug only: > > pci_add auto nic model=virtio,vlan=0 > > -> network works > > pci_add auto storage file=/tmp/image.raw,if=virtio > > -> network stops working > > pci_add auto nic model=virtio,vlan=0 > > -> network works again on the new device Can reproduce it. "info pci" shows IRQ0 assigned to virtio-blk. Did you try, say, e1000 and SCSI ? -- 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