[bug #64471] grub efi memory allocation (efi/mm) does not work on every machine

[Vladimir Serbinenko]

Follow-up Comment #21, bug #64471 (project grub):

[(Erreur - Introuvable)]

[comment #20 commentaire #20 :]
> Ok I understand now.
> 
> a) I guess you didn't mention that allocating disk buffers from above 4GB
can corrupt the data? Otherwise why not let it fail during to disk operation
if it going to fail due to out of memory error?

I'm concerned it might return garbage or corrupt data silently. Also even if
no big buffers are available below 4 GiB we can read parts in sub-4GiB
temporary bug and then copy
> 
> b) No idea what is paging map, I could not find it.

https://wiki.osdev.org/Paging


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