On Thu, Dec 20, 2012 at 12:25:38AM +0400, Pavel Emelyanov wrote: ... > > > + if (!cpu_has(X86_FEATURE_FPU)) { > > + pr_err("missing onboard FPU unit\n"); > > + return -1; > > + } > > Lack of FPU shouldn't cause migration failure. Hard to imagine the x86-64 system which has no FPU unit at all. Cyrill