Although the download page for ColdFusion lists several different Linux versions (SLES 9 and 10, for instance) if you end up at the actual support matrix for ColdFusion then only a limited sub set of that list is actually supported for 64-bit native (SLES 10.1 only for instance, not 9, and not any other version of 10).

Not that I've got it to run 64-bit native here yet, of course, but I've only tried a little bit and I'm not one to be put off by a piddling little thing like a floating point exception during "arch_prctl(ARCH_SET_FS, 0x2ad11b48ded0)" :-)