Created attachment 146 [details] log of mips kernel failure A log of the failure is attached.
Looks like all unused-but-set-variable warnings. Note that this particular gcc warning (unused-but-set-variable) is on its way to being disabled in the upstream kernel. See the lkml thread, "Re: annoying new gcc 4.6.0 warnings.": https://lkml.org/lkml/2011/4/21/325
Bruce made a comment about disabling the option to be consistent with mainline's approach. Bruce, assigning to you and marking accepted.
http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=0b5b26b18698a2c477afefffe3b0d0f921a93e94
qemumips and all qemu targets build with gcc 4.6.x