The regex which extracts the machine type from a kernel filename breaks when used with the Yocto 0.9 released kernel files.
Fixed in commit a4a896165c47bf4983bcd789820227c0f49a7272. http://git.pokylinux.org/cgit/cgit.cgi/poky/commit/?id=a4a896165c47bf4983bcd789820227c0f49a7272
Verified 2010-12-13