[bug#61461] [PATCH core-updates] gnu: jemalloc: Build with THP support on aarch64.

[Roman Scherer]

Hi Christopher,

ok, I see. Thanks for looking into this.

Christopher Baines <mail@cbaines.net> writes:

> [[PGP Signed Part:Undecided]]
>
> Roman Scherer <roman.scherer@burningswell.com> writes:
>
>> Hello Guix,
>>
>> I'm running Guix on an aarch64 system that uses a Linux kernel configured 
>> with
>> a page size of 16K. Some of the substitutes I receive from Guix sometimes do
>> not work. I believe all packages that use jemalloc, which are quite a lot.
>>
>> Rust is one example. It fails like this:
>>
>> ```
>> [roman@bombaclaat guix]$ rustc
>> <jemalloc>: Unsupported system page size
>> <jemalloc>: Unsupported system page size
>> <jemalloc>: Unsupported system page size
>> terminate called without an active exception
>> Aborted
>> ```
>>
>> Building packages that depend on jemalloc also fail. I can't compile the rust
>> package from Guix for example.
>>
>> This patch series updates jemalloc and enables the use of transparent huge
>> pages on the aarch64 architecture. I saw we support THP as well for 
>> i686-linux
>> and x86_64-linux, so I think it's fine to enable it here as well. At least
>> it's better than crashing.
>>
>> The patch should also make it possible to use substitutes built on CI by
>> systems running with larger kernel pages sizes, avoiding long compilation
>> times for things like the whole rust toolchain.
>>
>> Since jemalloc has a lot of dependencies, I think it's a candidate for
>> core-updates.
>>
>> I submitted parts of this patch series in another ticket where I tried to fix
>> Icecat compilation on my aarch64 system. But I think it's worth a separate
>> issue. And I'm blocked on the other issue at the moment.
>>
>> Could you please review the patchs?
>
> The patches don't look to apply to core-updates, as far as I can see,
> core-updates already has jemalloc 5.3.0 and doesn't pass the
> --disable-thp flag for any architecture.
>
> [[End of PGP Signed Part]]

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