Hi, I've been trying to diagnose a livelock-like condition (no response to ping, serial console dead, KVM process consumes 100% CPU) of KVM virtual machines on Ubuntu 9.10 (Ubuntu AMD64 kernel 2.6.31-17-server, QEMU 0.11.0 and libvirt 0.7.0). "virsh dump" generates a dump file that crash cannot read: crash: qemu-load.c:501: cpu_init_load_64: Assertion `version_id >= 4 && version_id <= 9' failed. Indeed, CPU_SAVE_VERSION in this dump file is 10. See also https://bugs.launchpad.net/ubuntu/+source/crash/+bug/559219 -- Sergey Svishchev