grub segfaults on x86_64 SATA

[Phil Schaffner]

Starting a new thread as the last related one "Re: Grub install broken
after kernel update" seemed to be generating more heat than light.

The problem (which seems to be similar to another one mentioned in the
thread mentioned above):

Installed a new larger/faster SATA disk, copied/configured/booted FC3
installation, and attempted to reconfigure grub to use the new /boot
partition.  Attempting to run grub or grub-install to update boot record
results in "Segmentation fault".  The old MBR is not changed.  Cannot
create a grub floppy either due to segfault, although a grub floppy
created on a i686 system can be used to boot the x86_64 smp system, as
can the instance of grub created by anaconda on the original SATA disk.
Not sure if this may be an x86_64smp, or a SATA problem, or ???.  The
problem has persisted through multiple kernel upgrades.   Details can be
seen in the Bugzilla report
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=147600

Any suggestions appreciated, as would be any comments or action on the
Bugzilla item.

Thanks,
Phil