Re: [libvirt-users] VM dies with error regarding "virConnectNumOfInterfaces"

Hi! thanks for your mail! See my answers inline. > I ran into a problem using a USB device and was wondering if > you could help me. > > I'm running a Win XP SP3 in a VM with libvirt on a Xubuntu 11.10. > I configured it to talk to several USB devices. > > With one particular device (a Phonak Compilot[1], admittedly a probably > rather unusual device), the VM dies with the following error in the > libvirtd.log: > > 2012-07-20 21:04:19.591+0000: 1282: error : > virConnectNumOfInterfaces:9803 : this function is not supported by the > connection driver: virConnectNumOfInterfaces This message is guaranteed unrelated to your guest dying. It means that some management program (for example virt-manager) is trying out the "virInterface" part of libvirt's API, and discovering that your platform does not support that part of the API. the virInterface functions deal with configuring and reporting the status of the host's network devices (physical ethernets, bridges, bonds), are only supported on platforms that have the "netcf" library, and are optional. Ubuntu is only just now getting netcf support into their distro, do Xubuntu 11.10 will certainly not have it. TL;DR ignore the error about virConnectNumOfInterfaces. Okay, thanks for the explanation! I appreciate it. > 2012-07-20 21:05:05.762+0000: 1276: error : qemuMonitorIO:603 : internal > error End of file from monitor This just means that the qemu process terminated abruptly. If you look in /var/log/libvirt/qemu/${guestname}.log, you may find a more specific error message issued by qemu itself. Okay, I did that and here is the full log of my try to start it up: 2012-07-23 09:30:37.761+0000: starting up LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/sbin:/sbin:/bin QEMU_AUDIO_DRV=none /usr/bin/kvm -S -M pc-1.0 -enable-kvm -m 2048 -smp 2,sockets=2,cores=1,threads=1 -name toddler -uuid 1e9ada35-5681-5060-476e-7a9e615fcb5c -nodefconfig -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/toddler.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime -no-shutdown -drive file=/media/frog/vms/toddler_storage.img,if=none,id=drive-ide0-0-0,format=qcow2 -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 -drive if=none,media=cdrom,id=drive-ide0-0-1,readonly=on,format=raw -device ide-drive,bus=ide.0,unit=1,drive=drive-ide0-0-1,id=ide0-0-1 -drive if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -netdev tap,fd=19,id=hostnet0 -device rtl8139,netdev=hostnet0,id=net0,mac=52:54:00:49:f6:46,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -usb -device usb-tablet,id=input0 -vnc 127.0.0.1:0 <http://127.0.0.1:0> -vga std -device intel-hda,id=sound0,bus=pci.0,addr=0x4 -device hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 -device usb-host,hostbus=1,hostaddr=3,id=hostdev0 -device usb-host,hostbus=1,hostaddr=4,id=hostdev1 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 char device redirected to /dev/pts/4 kvm: usb-linux.c:1211: usb_linux_update_endp_table: Assertion `epd->type == 255' failed.