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SubjectRe: [PATCH 2/2] arm64: add support for 43bit physical address
On Tue, Jul 03, 2018 at 06:35:32PM +0000, Nikunj Kela (nkela) wrote:
> We are trying to reduce the memory allocation needed for kdump kernel.
> We want to reserve less than 32M for kdump kernel if possible. We are
> able to get ~14M saving by the proposed change.

Have you tried disabling SPARSEMEM and using FLATMEM for this case? With
32M you wouldn't need more than a section anyway. It needs some tweaking
of the arm64 Kconfig and probably fail to build.


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