Fwd: ./include/linux/mmzone.h:1735:2: error: #error Allocator MAX_ORDER exceeds SECTION_SIZE (v6.4-rc3 build regression)

Fwd: ./include/linux/mmzone.h:1735:2: error: #error Allocator MAX_ORDER exceeds SECTION_SIZE (v6.4-rc3 build regression)

[Bagas Sanjaya]

Hi,

I notice a powerpc[64?] build regression on Bugzilla [1]. Quoting from it:

>  CC      arch/powerpc/kernel/asm-offsets.s
> In file included from ./include/linux/gfp.h:7,
>                 from ./include/linux/xarray.h:15,
>                 from ./include/linux/list_lru.h:14,
>                 from ./include/linux/fs.h:13,
>                 from ./include/linux/compat.h:17,
>                 from arch/powerpc/kernel/asm-offsets.c:12:
> ./include/linux/mmzone.h:1735:2: error: #error Allocator MAX_ORDER exceeds SECTION_SIZE
> 1735 | #error Allocator MAX_ORDER exceeds SECTION_SIZE
>      |  ^~~~~
> make[5]: *** [scripts/Makefile.build:114: arch/powerpc/kernel/asm-offsets.s] Error 1

Apparently removing the errored line solves the problem for the reporter
(the attached dmesg on [2] looks fine at a glance).

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

Thanks.

[1]: https://bugzilla.kernel.org/show_bug.cgi?id=217477
[2]: https://bugzilla.kernel.org/show_bug.cgi?id=217477#c1

-- 
An old man doll... just what I always wanted! - Clara

Re: ./include/linux/mmzone.h:1735:2: error: #error Allocator MAX_ORDER exceeds SECTION_SIZE (v6.4-rc3 build regression)

[Zi Yan]

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On 24 May 2023, at 6:58, Bagas Sanjaya wrote:

> Hi,
>
> I notice a powerpc[64?] build regression on Bugzilla [1]. Quoting from it:
>
>>  CC      arch/powerpc/kernel/asm-offsets.s
>> In file included from ./include/linux/gfp.h:7,
>>                 from ./include/linux/xarray.h:15,
>>                 from ./include/linux/list_lru.h:14,
>>                 from ./include/linux/fs.h:13,
>>                 from ./include/linux/compat.h:17,
>>                 from arch/powerpc/kernel/asm-offsets.c:12:
>> ./include/linux/mmzone.h:1735:2: error: #error Allocator MAX_ORDER exceeds SECTION_SIZE
>> 1735 | #error Allocator MAX_ORDER exceeds SECTION_SIZE
>>      |  ^~~~~
>> make[5]: *** [scripts/Makefile.build:114: arch/powerpc/kernel/asm-offsets.s] Error 1

By checking the config file from the bugzilla, ARCH_FORCE_MAX_ORDER is set to 9,
(SECTION_SIZE is 24 and 64KB page is used, so 9+16=25>24) but it should be 8
after recent MAX_ORDER changes. I guess the user was using an old config file.

Changing ARCH_FORCE_MAX_ORDER to 8 in the config should fix the issue.

>
> Apparently removing the errored line solves the problem for the reporter
> (the attached dmesg on [2] looks fine at a glance).
>
> 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
>
> Thanks.
>
> [1]: https://bugzilla.kernel.org/show_bug.cgi?id=217477
> [2]: https://bugzilla.kernel.org/show_bug.cgi?id=217477#c1
>
> -- 
> An old man doll... just what I always wanted! - Clara

--
Best Regards,
Yan, Zi

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Re: Fwd: ./include/linux/mmzone.h:1735:2: error: #error Allocator MAX_ORDER exceeds SECTION_SIZE (v6.4-rc3 build regression)

[Bagas Sanjaya]

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

Thanks for all who participates in this regression report!

[1]: https://bugzilla.kernel.org/show_bug.cgi?id=217477#c8

-- 
An old man doll... just what I always wanted! - Clara

Re: Fwd: ./include/linux/mmzone.h:1735:2: error: #error Allocator MAX_ORDER exceeds SECTION_SIZE (v6.4-rc3 build regression)

[Bagas Sanjaya]

On 5/24/23 20:11, Doru Iorgulescu wrote:
> Glad to hear it! 
> Thank you

tl;dr:

> A: http://en.wikipedia.org/wiki/Top_post
> Q: Were do I find info about this thing called top-posting?
> A: Because it messes up the order in which people normally read text.
> Q: Why is top-posting such a bad thing?
> A: Top-posting.
> Q: What is the most annoying thing in e-mail?
> 
> A: No.
> Q: Should I include quotations after my reply?
> 
> http://daringfireball.net/2007/07/on_top

(IOW, I have no idea what you're referring to. Please stop top-posting;
reply inline with appropriate context instead.)

Also, don't send HTML emails as many mailing lists (including LKML)
don't like it.

Thanks.

-- 
An old man doll... just what I always wanted! - Clara

Re: Fwd: ./include/linux/mmzone.h:1735:2: error: #error Allocator MAX_ORDER exceeds SECTION_SIZE (v6.4-rc3 build regression)

[Michael Ellerman]

Bagas Sanjaya <bagasdotme@gmail.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

Re: Fwd: ./include/linux/mmzone.h:1735:2: error: #error Allocator MAX_ORDER exceeds SECTION_SIZE (v6.4-rc3 build regression)

[Bagas Sanjaya]

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On Thu, May 25, 2023 at 01:03:22AM +1000, Michael Ellerman wrote:
> 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.

Telling regzbot:

#regzbot fix: 358e526a1648cd

Thanks.

-- 
An old man doll... just what I always wanted! - Clara

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Re: Fwd: ./include/linux/mmzone.h:1735:2: error: #error Allocator MAX_ORDER exceeds SECTION_SIZE (v6.4-rc3 build regression)

[Bagas Sanjaya]

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On Wed, May 24, 2023 at 06:13:52PM +0300, Doru Iorgulescu wrote:
> Awesome, thanks!

tl;dr: see [1].

(Hey, looks like complimenting noise here.)

[1]: https://lore.kernel.org/regressions/5df92692-296e-3956-24fa-2bd439337953@gmail.com/

-- 
An old man doll... just what I always wanted! - Clara

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