Messages in this thread | | | Date | Thu, 5 Jul 2018 19:34:53 +0100 | From | Catalin Marinas <> | Subject | Re: [PATCH 2/2] arm64: add support for 43bit physical address |
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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.
-- Catalin
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