Messages in this thread | | | Date | Thu, 13 Apr 2023 15:30:33 +0100 | From | Catalin Marinas <> | Subject | Re: [PATCH v5] arm64: kdump: simplify the reservation behaviour of crashkernel=,high |
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On Thu, Apr 13, 2023 at 03:45:50PM +0800, Baoquan He wrote: > I am OK with this version, or the version with min(SZ_4G, > arm64_dma_phys_limit), or v4. Please help point out if I got your idea > correctly. Thanks a lot.
I think we should stick to this patch. The disabling of the ZONE_DMA(32) is fairly specialised and you are right that we should not introduce an artificial 4GB crashkernel boundary on such systems. The slight confusion may be that ,high triggers a search above 4GB where there's not such boundary but this would match the documentation anyway.
-- Catalin
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