2.6.28-rc1: NVRAM being corrupted on ppc64 preventing boot (bisected)

[Paul Mackerras]

Benjamin Herrenschmidt writes:

> Unless missed something, I think it's narrowed already. When loaded from
> yaboot, there is no relevant difference between zImage and vmlinux here.
> IE. yaboot parses the ELF header of the zImage itself and ignores the
> special notes anyway so only the CAS firmware call is relevant in both
> cases, no ?

Good point.  However, it would be the parse-elf-header firmware call,
rather than the CAS firmware call, since 91a00302 modified the
fake_elf structure (to make it consistent with the CAS structure) but
not the CAS structure.

Paul.