1.6.2 daisy branch poky : 313864bf528696a72c3ee6b3dec1a0c7b0b223f6 qemux86-64 should use tune file tune-core2.inc instead of tune-x86_64.inc qemuppc should use tune file tune-ppc7400.inc instead of tune-ppc603e.inc this has been resolved in master branch, http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=05c47cc68ea0592ce3d46ce21ae1afd00e571030 But the patch wasn't applied to 1.6.2 yet
http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?h=daisy&id=a85328245d9ae360f94e325c81f7f34dda4d3956