quoted

In case we are so low on memory that trans_pgd_create_copy() fails to
allocate the linear map that uses the large pages (the size of the
page table is tiny) the kexec fails during kexec load time (not during
reboot time), as out of memory. The MMU enabled kexec reboot is always
on, and we should not have several ways to do kexec reboot as it makes
the kexec reboot unpredictable in terms of performance, and also prone
to bugs by having a common MMU enabled path and less common path when
we are low on memory which is never tested.

I think this makes sense, especially since it will fail during the kexec
load time rather than reboot.

I'm ok in principle with this series but I'd need to convince James
Morse to have a another look since he followed it more closely than me.
Could you please rebase it against 5.15-rc1?

Sure, I will send it out soon.

Thanks,
Pasha

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