On Wed, Sep 02, 2015 at 00:54:19 +0200, Nikolaus Schulz wrote: ... Interesting, so it seems syscall feature is missing in both cases, which is why libvirt detects the CPU as n270 or coreduo (all new CPU models require syscall feature). Would you mind attaching the output of the "cpuid -1r" command? The cpuid binary is the one from a Debian package called cpuid according to https://packages.debian.org/search?keywords=cpuid
Could you also set log_filters="1:cpu 1:qemu 1:daemon" in /etc/libvirt/libvirtd.conf, restart libvirtd and attach libvirtd.log? Jirka