[PATCH v16 00/15] arm64: MMU enabled kexec relocation

Pasha Tatashin pasha.tatashin at soleen.com
Thu Sep 16 15:32:14 PDT 2021


> > 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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