[Cake] BUG_ON vs WARN_ON

[Kevin Darbyshire-Bryant]

Hi Jonathan,

How amenable are you to changing all 4 BUG_ON instances in cake to WARN_ON?

Linus isn't a complete fan and I'm thinking that producing a stack trace 
and trying to carry on is more helpful to a remote accessed, no serial 
interface type device than just killing the kernel dead.

Quite possibly other bad things(tm) will happen shortly after...or maybe 
there will be enough time look at dmesg for that stack trace.

Thoughts?

Kevin