linux-kernel - Re: [PATCH v4 2/2] RISC-V: Implement sparsemem

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Message-ID: <8b7b6285-dd85-5895-8653-be1f6f08cca8@deltatee.com>
Date:   Wed, 14 Aug 2019 16:21:11 -0600
From:   Logan Gunthorpe <logang@...tatee.com>
To:     Greentime Hu <green.hu@...il.com>
Cc:     Paul Walmsley <paul.walmsley@...ive.com>,
        Rob Herring <robh@...nel.org>,
        Albert Ou <aou@...s.berkeley.edu>,
        Andrew Waterman <andrew@...ive.com>,
        Palmer Dabbelt <palmer@...ive.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Stephen Bates <sbates@...thlin.com>,
        Olof Johansson <olof@...om.net>, greentime.hu@...ive.com,
        linux-riscv@...ts.infradead.org,
        Michael Clark <michaeljclark@....com>,
        Christoph Hellwig <hch@....de>, linux-mm@...r.kernel.org
Subject: Re: [PATCH v4 2/2] RISC-V: Implement sparsemem

Hey,

On 2019-08-14 7:35 a.m., Greentime Hu wrote:
> How about this fix? Not sure if it is good for everyone.

I applied your fix to the patch and it seems ok. But it doesn't seem to
work on a recent version of the kernel. Have you got it working on v5.3?
It seems the following patch breaks things:

671f9a3e2e24 ("RISC-V: Setup initial page tables in two stages")

I don't really have time right now to debug this any further.

Logan