linux-kernel - Re: [PATCH] MIPS: reserve the memblock right after the kernel

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Message-ID: <4625868b-f845-2f03-c3f2-fc3ff1ccf63d@flygoat.com>
Date:   Fri, 13 Nov 2020 10:30:09 +0800
From:   Jiaxun Yang <jiaxun.yang@...goat.com>
To:     Serge Semin <fancer.lancer@...il.com>,
        Alexander Sverdlin <alexander.sverdlin@...ia.com>
Cc:     Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        linux-mips@...r.kernel.org, Paul Burton <paulburton@...nel.org>,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH] MIPS: reserve the memblock right after the kernel

Hi all,

在 2020/11/11 22:52, Serge Semin 写道:
> Hello Alexander
>
> On Tue, Nov 10, 2020 at 11:29:50AM +0100, Alexander Sverdlin wrote:
> 2) The check_kernel_sections_mem() method can be removed. But it
> should be done carefully. We at least need to try to find all the
> platforms, which rely on its functionality.
It have been more than 10 years since introducing this this check, but
I believe there must be a reason at the time.

Also currently we have some unmaintained platform and it's impossible
to test on them for us.

For Cavium's issue, I believe removing the page rounding can help.
I'd suggest keep this method but remove the rounding part, also
leave a warning or kernel taint when out of boundary kernel image
is detected.

Thanks.

- Jiaxun

>
> -Sergey
>
>> -- 
>> Best regards,
>> Alexander Sverdlin.