Re: bug

> it only happens when i try to compile with profiling enabled.

Profiling (-prof) is incompatible with the native code generator 
(-fasm). Leave out -fasm if you want profiling. (Compiling will be 
slower without -fasm)

It is only a tiny bug: GHC should complain about incompatible options 
instead of panicking.

Cheers,

Wolfgang Thaller