XFS as Root filesystem

[Tan Pong Heng <pongheng@xxxxxxxxxxxxxx>]

Hi, I did some more testings with using XFS as root filesystem. By
inserting some printk
into the kernel, I was able to ascertain that the kernel hanged at the
last stage of
the booting process. It seem to not able to exec the init command. But,
it does not
seem to have failed to do so, but rather hang there trying.

I am not sure how else to debug further, any suggestion?