linux-kernel - Re: Fwd: ./include/linux/mmzone.h:1735:2: error: #error Allocator MAX_ORDER exceeds SECTION

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Message-ID: <87bki9ai11.fsf@mail.lhotse>
Date:   Thu, 25 May 2023 01:03:22 +1000
From:   Michael Ellerman <mpe@...erman.id.au>
To:     Bagas Sanjaya <bagasdotme@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux PowerPC <linuxppc-dev@...ts.ozlabs.org>,
        Linux Memory Management List <linux-mm@...ck.org>,
        Linux Regressions <regressions@...ts.linux.dev>
Cc:     "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        Zi Yan <ziy@...dia.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        doru iorgulescu <doru.iorgulescu1@...il.com>,
        Nicholas Piggin <npiggin@...il.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Fabiano Rosas <farosas@...ux.ibm.com>,
        Athira Rajeev <atrajeev@...ux.vnet.ibm.com>,
        Disha Goel <disgoel@...ux.vnet.ibm.com>
Subject: Re: Fwd: ./include/linux/mmzone.h:1735:2: error: #error Allocator
 MAX_ORDER exceeds SECTION_SIZE (v6.4-rc3 build regression)

Bagas Sanjaya <bagasdotme@...il.com> writes:
> On 5/24/23 17:58, Bagas Sanjaya wrote:
>> Anyway, I'm adding it to regzbot:
>> 
>> #regzbot introduced: 23baf831a32c04f https://bugzilla.kernel.org/show_bug.cgi?id=217477
>> #regzbot title: Allocator MAX_ORDER exceeds SECTION_SIZE caused by MAX_ORDER redefinition
>> 
>
> From bugzilla [1], the reporter had successfully tried the proposed
> kernel config fix, so:
>
> #regzbot resolve: reducing CONFIG_ARCH_FORCE_MAX_ORDER to 8 resolves the regression

Should be fixed properly by:

https://patchwork.ozlabs.org/project/linuxppc-dev/patch/20230519113806.370635-1-mpe@ellerman.id.au/

Which is in powerpc-fixes as 358e526a1648.

cheers