Hi, I'm facing a strange problem with libvirt + kvm on Ubuntu 10.04.3.
I have all-in-one installation of Essex-2. When I start an instance using 'nova boot', it shows its status as ACTIVE, but when I connect using vnc (by issuing 'vncdisplay' command in virsh for that instance), I can see it doesn't even boot and shows 'No bootable device' error. Here's the output of 'virsh dumpxml' for that instance and also libvirt's log file: http://dpaste.de/VeFeq/ I also have a VM I spawned manually (i.e. not through on this box) and it works fine. Here's its log: http://dpaste.de/cp4C1/ The only major difference I can see is that it's using 'boot=on' for drive. It's also not using kernel and initrd, but I've tried images with out it with the same result. I've also been experimenting with running kvm manually and found a reproducible crash: root@host:/var/log/libvirt/qemu# 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-0.12 -enable-kvm -m 512 -smp 1,sockets=1,cores=1,threads=1 -name instance-0000006d -uuid 0ce3afdc-be2f-4079-d106-e70b287f9e26 -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/instance-0000006d.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=readline -rtc base=utc -boot c -kernel /var/lib/nova/instances/instance-0000006d/kernel -initrd /var/lib/nova/instances/instance-0000006d/ramdisk -append root=/dev/vda -drive file=/var/lib/nova/instances/instance-0000006d/disk,if=none,id=drive-virtio-disk0,format=qcow2,boot=on -device virtio-blk-pci,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0 -chardev file,id=charserial0,path=/var/lib/nova/instances/instance-0000006d/console.log -device isa-serial,chardev=charserial0,id=serial0 -chardev pty,id=charserial1 -device isa-serial,chardev=charserial1,id=serial1 -usb -vnc 0.0.0.0:2 -k en-us -no-kvm char device redirected to /dev/pts/20 Segmentation fault root@host:/var/log/libvirt/qemu# It segfaults when I'm connecting to it via VNC. I'm kind of stuck with this issue and have no idea how to debug it further. Any ideas how that could be fixed? Roman Bogorodskiy
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