The kernel v3.4 has changed ABI for x32. So it needed newer x32 support in libc. Also glibc 2.16 development branch picked the x32 changes. glibc 2.16 will be released soon (Jun 2012). Hoping that eglibc 2.16: will get released soon after glibc 2.16 gets released. This bug will wait till eglibc 2.16 get's released.
wiating for eglibc 2.16 to get released.
We have updated to eglibc 2.16 and can now mirgrate the x32 away from a private layer to oe-core, I have built and tested an x32 with eglibc2.16CONFIG_X86_X32=y