Areas we could do with assistance

Areas we could do with assistance

[Richard Purdie]

Hi Everyone,

There are a few areas we could do with some help at the moment:

a) ptest in util-linux failing for qemuriscv64:
https://autobuilder.yoctoproject.org/valkyrie/#/builders/56/builds/2369

b) Finding better tests for the github related bitbake-selftests. I've
made good progress at removing github.com references from
https://git.openembedded.org/bitbake/tree/lib/bb/tests/fetch.py but
some still remain. I also have not rewritten all the submodules to not
use github for the underlying submodules in all cases. The ones that
are left are:

test_gomod_url
test_gomod_url_go_mod_only
test_gomodgit_url_subdir
test_git_submodule_iotedge

You can also now see timing data on:
https://autobuilder.yoctoproject.org/valkyrie/#/builders/23/builds/4848/steps/14/logs/stdio

and help with speeding any of these up would also be welcome!

c) The xserver startup issues:
https://bugzilla.yoctoproject.org/show_bug.cgi?id=13908

d) Reproducibility on x86 vs arm hosts. Alejandro has made good
progress with identifying many of the rust related issues but there are
some non-rust issues remaining. One key set of diffs are these:

https://valkyrie.yocto.io/pub/repro-fail/oe-reproducible-20260908-sv8uww77/packages/diff-html/

Particularly the perl issue, the locale change and numpy config issues.

Any help on these welcome, just let us know if you're working on
anything to avoid duplication.

Cheers,

Richard

Re: [OE-core] Areas we could do with assistance

[Dora, Sunil Kumar]

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On 9/9/2026 4:02 PM, Richard Purdie via lists.openembedded.org wrote:

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Hi Everyone,

There are a few areas we could do with some help at the moment:

a) ptest in util-linux failing for qemuriscv64:
https://autobuilder.yoctoproject.org/valkyrie/#/builders/56/builds/2369

b) Finding better tests for the github related bitbake-selftests. I've
made good progress at removing github.com references from
https://git.openembedded.org/bitbake/tree/lib/bb/tests/fetch.py but
some still remain. I also have not rewritten all the submodules to not
use github for the underlying submodules in all cases. The ones that
are left are:

test_gomod_url
test_gomod_url_go_mod_only
test_gomodgit_url_subdir
test_git_submodule_iotedge

You can also now see timing data on:
https://autobuilder.yoctoproject.org/valkyrie/#/builders/23/builds/4848/steps/14/logs/stdio

and help with speeding any of these up would also be welcome!

c) The xserver startup issues:
https://bugzilla.yoctoproject.org/show_bug.cgi?id=13908

d) Reproducibility on x86 vs arm hosts. Alejandro has made good
progress with identifying many of the rust related issues but there are
some non-rust issues remaining. One key set of diffs are these:

https://valkyrie.yocto.io/pub/repro-fail/oe-reproducible-20260908-sv8uww77/packages/diff-html/

Particularly the perl issue, the locale change and numpy config issues.

Any help on these welcome, just let us know if you're working on
anything to avoid duplication.

Hi Richard,

On point (d), just to avoid duplicating work: I’ve been looking into the x86 vs. ARM host reproducibility failures for some time now,
mainly around the Rust and Git issues.

For rust/rust-dbg, the remaining diff after the SVH work appears to be caused by the build path leaking into object file names
during the Rust build. I have a fairly good understanding of the issue now and am validating a fix locally.
Once confirmed, I’ll post the analysis and patch.

I’ve also been looking into the Rust test suite failures seen with Alejandro’s v5 series, and I believe I understand what’s happening there.
I’ll follow up separately on that thread with more details and a suggested rework, so the SVH improvements aren’t lost.

For git/git-dbg, this is the HOST_CPU issue I mentioned earlier in the thread. I’ve since confirmed the fix locally and will send the patch shortly.

I’m not currently looking into the Perl, Locale, or NumPy diffs, so those are available for anyone else to pick up.

Thanks,
Sunil Dora



Cheers,

Richard











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Re: [OE-core] Areas we could do with assistance

[Ross Burton]

On 9 Sep 2026, at 11:32, Richard Purdie via lists.openembedded.org <richard.purdie=linuxfoundation.org@lists.openembedded.org> wrote:
> d) Reproducibility on x86 vs arm hosts. Alejandro has made good
> progress with identifying many of the rust related issues but there are
> some non-rust issues remaining. One key set of diffs are these:
> 
> https://valkyrie.yocto.io/pub/repro-fail/oe-reproducible-20260908-sv8uww77/packages/diff-html/
> 
> Particularly the perl issue, the locale change and numpy config issues.

I’ve just sent a patch for numpy.

Ross

Re: [OE-core] Areas we could do with assistance

[Richard Purdie]

Hi Sunil,

On Thu, 2026-09-10 at 13:25 +0000, Dora, Sunil Kumar via lists.openembedded.org wrote:
> On 9/9/2026 4:02 PM, Richard Purdie via lists.openembedded.org wrote:
> > d) Reproducibility on x86 vs arm hosts. Alejandro has made good
> > progress with identifying many of the rust related issues but there
> > are
> > some non-rust issues remaining. One key set of diffs are these:
> > 
> > https://valkyrie.yocto.io/pub/repro-fail/oe-reproducible-20260908-sv8uww77/packages/diff-html/
> > 
> > Particularly the perl issue, the locale change and numpy config
> > issues.
> > 
> > Any help on these welcome, just let us know if you're working on
> > anything to avoid duplication.
> 
> On point (d), just to avoid duplicating work: I’ve been looking into
> the x86 vs. ARM host reproducibility failures for some time now, 
> mainly around the Rust and Git issues.
> For rust/rust-dbg, the remaining diff after the SVH work appears to
> be caused by the build path leaking into object file names 
> during the Rust build. I have a fairly good understanding of the
> issue now and am validating a fix locally. 
> Once confirmed, I’ll post the analysis and patch.
> I’ve also been looking into the Rust test suite failures seen with
> Alejandro’s v5 series, and I believe I understand what’s happening
> there. 
> I’ll follow up separately on that thread with more details and a
> suggested rework, so the SVH improvements aren’t lost.
> For git/git-dbg, this is theHOST_CPU issue I mentioned earlier in the
> thread. I’ve since confirmed the fix locally and will send the patch
> shortly.
> For git/git-dbg, this is theHOST_CPU issue I mentioned earlier in the
> thread. I’ve since confirmed the fix locally and will send the patch
> shortly.
> I’m not currently looking into the Perl, Locale, or NumPy diffs, so
> those are available for anyone else to pick up.

Thanks, this is good information to have and sounds like really good
progress. I'm looking forward to getting this resolved!

I had remembered about the git issue which is why I didn't call that
one out specifically. Ross has sent a patch for numpy too, so we are
moving forwards.

The other reproducibile tests did complete and the results there are
looking better too, the rust "noise" is reduced showing the other
issues more clearly:

https://autobuilder.yoctoproject.org/valkyrie/#/builders/121/builds/4
https://valkyrie.yocto.io/pub/repro-fail/oe-reproducible-20260908-nxt738yt/packages/diff-html/

https://autobuilder.yoctoproject.org/valkyrie/#/builders/119/builds/4/steps/15/logs/stdio
https://valkyrie.yocto.io/pub/repro-fail/oe-reproducible-20260908-xz_trxrt
/packages/diff-html/

There are kernel, gcc, go, mesa, pseudo, erofs and ruby issues there so
plenty for people to help with if anyone has time!

Cheers,

Richard

Re: [OE-core] Areas we could do with assistance

[Jaipaul Cheernam]

On 2026-09-09 12:32, Richard Purdie via lists.openembedded.org wrote:
> a) ptest in util-linux failing for qemuriscv64:
> https://autobuilder.yoctoproject.org/valkyrie/#/builders/56/builds/2369

Hi Richard,

I send a patch for util-linux and reported issue to respective upstream 
as well.

Regards,

Jaipaul

Re: [OE-core] Areas we could do with assistance

[Richard Purdie]

On Thu, 2026-09-10 at 23:06 +0200, Jaipaul Cheernam wrote:
> 
> On 2026-09-09 12:32, Richard Purdie via lists.openembedded.org wrote:
> > a) ptest in util-linux failing for qemuriscv64:
> > https://autobuilder.yoctoproject.org/valkyrie/#/builders/56/builds/2369
>
> I send a patch for util-linux and reported issue to respective
> upstream 
> as well.

I've merged it, this is great, thanks!

It is important as it means when we see warnings, we don't just blindly
assume it is util-linux still failing or have to check each time.

Cheers,

Richard