- Limit grub_malloc() on x86_64 to < 31bit addresses, as some devices seem to
have a colossally broken storage controller (or UEFI driver) that can't do
DMA to higher memory addresses, but fails silently.
Resolves: rhbz#1626844 (possibly really resolving it this time.)
- Also integrate Hans's attempt to fix the related error from -54, but do it
the other way around: try the low addresses first and *then* the high one if
the allocation fails. This way we'll get low regions by default, and if
kernel/initramfs don't fit anywhere, it'll try the higher addresses.
Related: rhbz#1624532
- Coalesce all the intermediate debugging junk from -54/-55/-56.
Signed-off-by: Peter Jones <pjones@redhat.com>
