Boot failure on the powerstation with 2.6.30 latest

[James Bottomley]

2.6.30-rc8 worked fine ... unless this is a known problem, I suppose I
can begin bisecting.

The boot log of the hang is:

Please wait, loading kernel...
   Elf64 kernel loaded...
Loading ramdisk...
ramdisk loaded at 02500000, size: 8280 Kbytes
OF stdout device is: /ht/isa at 8/serial at 2f8
Preparing to boot Linux version 2.6.30 (jejb at claymoor) (gcc version 4.3.3 (Debian 4.3.3-10) ) #1 SMP Mon Jun 22 09:59:35 CDT 2009
command line: root=/dev/sda3 ro console=ttyS0,19200n1 
memory layout at init:
  alloc_bottom : 0000000002d16000
  alloc_top    : 0000000030000000
  alloc_top_hi : 0000000080000000
  rmo_top      : 0000000030000000
  ram_top      : 0000000080000000
instantiating rtas at 0x000000002fff5000... done
boot cpu hw idx 0000000000000000
starting cpu hw idx 0000000000000001... done
starting cpu hw idx 0000000000000002... done
starting cpu hw idx 0000000000000003... done
copying OF device tree...
Building dt strings...
Building dt structure...
Device tree strings 0x0000000003117000 -> 0x0000000003117640
Device tree struct  0x0000000003118000 -> 0x000000000311b000
Calling quiesce...
returning from prom_init

So it looks like some type of early boot failure or handoff in head_64

James