[libvirt] [with libvirt/qemu git] invoking 'qemu-system-x86_64' fails w/: -netdev bridge, br=virbr0, id=hostnet0 Device 'bridge' could not be initialized"

Hi, I'm on latest master, w/ Eric's block-commit patches applied =========================================================== [kashyap@moon libvirt-k]$ git status # On branch master # Your branch is ahead of 'origin/master' by 2 commits. # nothing to commit (working directory clean) [kashyap@moon libvirt-k]$ =========================================================== [kashyap@moon libvirt-k]$ # ./autogen.sh ; make -j5 ; make check =========================================================== Now, then define an xml [see complete xml at the bottom] #-----------------------------------------------------------# [kashyap@moon libvirt-k]$ ./run ./tools/virsh define /var/tmp/f17-base.xml Domain f17-base defined from /var/tmp/f17-base.xml #-----------------------------------------------------------# Try to start the guest now: #-----------------------------------------------------------# [kashyap@moon libvirt-k]$ ./run ./tools/virsh start f17-base error: Failed to start domain f17-base error: internal error Process exited while reading console log output: char device redirected to /dev/pts/6 failed to launch bridge helper qemu-system-x86_64: -netdev bridge,br=virbr0,id=hostnet0: Device 'bridge' could not be initialized [kashyap@moon libvirt-k]$ #-----------------------------------------------------------# The emulator is pointed to latest qemu-system-x86_64 compiled from latest qemu-git #-----------------------------------------------------------# [kashyap@moon libvirt-k]$ egrep -i 'emulator|bridge' /var/tmp/f17-base.xml <emulator>/home/kashyap/projects/qemu/x86_64-softmmu/qemu-system-x86_64</emulator> <interface type='bridge'> <source bridge='virbr0'/> [kashyap@moon libvirt-k]$ #-----------------------------------------------------------# [kashyap@moon libvirt-k]$ brctl show bridge name bridge id STP enabled interfaces br0 8000.00215e6fb9f4 no eth0 virbr0 8000.525400573710 yes virbr0-nic [kashyap@moon libvirt-k]$ #-----------------------------------------------------------# [kashyap@moon libvirt-k]$ ./run ./tools/virsh version Compiled against library: libvirt 0.10.2 Using library: libvirt 0.10.2 Using API: QEMU 0.10.2 Cannot extract running QEMU hypervisor version [kashyap@moon libvirt-k]$ #-----------------------------------------------------------# [kashyap@moon libvirt-k]$ ps -ef | grep libvirtd kashyap 2277 1 2 17:07 ? 00:00:00 /home/kashyap/projects/libvirt-k/daemon/.libs/lt-libvirtd --timeout=30 kashyap 2392 11303 0 17:07 pts/15 00:00:00 grep --color=auto libvirtd [kashyap@moon libvirt-k]$ #-----------------------------------------------------------# That's what I see in the local log file: #-----------------------------------------------------------# [kashyap@moon libvirt-k]$ cat ~/.cache/libvirt/qemu/log/f17-base.log 2012-10-06 11:37:41.155+0000: starting up LC_ALL=C LD_LIBRARY_PATH=/home/kashyap/projects/libvirt-k/src/.libs PATH=/usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/home/kashyap/.local/bin:/home/kashyap/bin:/home/kashyap/.local/bin:/home/kashyap/bin HOME=/home/kashyap USER=kashyap LOGNAME=kashyap /home/kashyap/projects/qemu/x86_64-softmmu/qemu-system-x86_64 -name f17-base -S -M pc-1.2 -enable-kvm -m 2048 -smp 2,sockets=2,cores=1,threads=1 -uuid 8d54ced1-2662-bcae-0804-d4a3e65e9ff6 -nographic -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/home/kashyap/.config/libvirt/qemu/lib/f17-base.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive file=/var/lib/libvirt/images/f17-base.qcow2,if=none,id=drive-virtio-disk0,format=qcow2,cache=none -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -netdev bridge,br=virbr0,id=hostnet0 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:51:00:a9:f1:7f,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -device usb-tablet,id=input0 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 char device redirected to /dev/pts/6 failed to launch bridge helper qemu-system-x86_64: -netdev bridge,br=virbr0,id=hostnet0: Device 'bridge' could not be initialized 2012-10-06 11:37:41.281+0000: shutting down [kashyap@moon libvirt-k]$ #-----------------------------------------------------------# And that's the xml file: #-----------------------------------------------------------# <domain type='kvm'> <name>f17-base</name> <uuid>8d54ced1-2662-bcae-0804-d4a3e65e9ff6</uuid> <memory unit='KiB'>2097152</memory> <currentMemory unit='KiB'>2097152</currentMemory> <vcpu placement='static'>2</vcpu> <os> <type arch='x86_64' machine='pc-1.2'>hvm</type> <boot dev='hd'/> </os> <features> <acpi/> <apic/> <pae/> </features> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/home/kashyap/projects/qemu/x86_64-softmmu/qemu-system-x86_64</emulator> <disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='none'/> <source file='/var/lib/libvirt/images/f17-base.qcow2'/> <target dev='vda' bus='virtio'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> </disk> <controller type='usb' index='0'> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/> </controller> <interface type='bridge'> <mac address='52:51:00:a9:f1:7f'/> <source bridge='br0'/> <model type='virtio'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> <serial type='pty'> <target port='0'/> </serial> <console type='pty'> <target type='serial' port='0'/> </console> <input type='tablet' bus='usb'/> <memballoon model='virtio'> <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/> </memballoon> </devices> </domain> #-----------------------------------------------------------# Other notes: Rich Jones suggested me to do a build dep for qemu & re-try [kashyap@moon qemu]$ yum-builddep qemu [kashyap@moon qemu]$ ./configure --target-list=x86_64-softmmu --disable-werror ; make -j5 and re-configure qemu. And still no dice, I see the same 'bridge' could not be initialized Any hints here? -- /kashyap