Messages in this thread | | | Date | Thu, 11 Aug 2016 11:07:32 +0100 | From | Catalin Marinas <> | Subject | Re: arm64: why set SECTION_SIZE_BITS to 1G size? |
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On Thu, Aug 11, 2016 at 05:44:46PM +0800, Xishi Qiu wrote: > arm64: > SECTION_SIZE_BITS 30 -----1G > > The memory hotplug(add_memory -->check_hotplug_memory_range) > must be aligned with section.So I can not add mem with 64M ... > Can I modify the SECTION_SIZE_BITS to 26?
There was a patch to reduce this to 27:
http://lkml.kernel.org/g/1465821119-3384-1-git-send-email-jszhang@marvell.com
Also some discussions in this thread on a different patch:
http://lkml.iu.edu/hypermail/linux/kernel/1604.1/03036.html
Does your system really have such small alignment memory blocks?
-- Catalin
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