RE: [PATCH] [OE-core] [PATCH v2] lttng-tools: upgrade 2.14.1 -> 2.15.0

Mingyu Wang (Fujitsu)
2026-04-13T07:13:49Z

Thank you for running the tests. However, looking at the build log for build #3471, I noticed that the sstate summary shows:

Sstate summary: Wanted 5 Local 5 Mirrors 0 Missed 0 Current 440

This indicates that only 5 tasks were actually rebuilt, and lttng-ust was most likely served from the sstate cache rather than rebuilt with the patch applied. The failure output is also identical to build #3450 (before the patch), which further confirms that the updated lttng-ust package was not used during testing.

Could you please invalidate the lttng-ust sstate cache and trigger a clean rebuild before re-running the ptest image? I believe the patch is correct and the test should pass once lttng-ust is rebuilt from scratch.

These ptests all pass in my qemuarm64 and qemux86-64 environments.

Thanks,

--
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---------------------------------------------------
Wang Mingyu
FUJITSU NANJING SOFTWARE TECHNOLOGY CO., LTD. (FNST)
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> -----Original Message-----
> From: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
> Sent: Sunday, April 12, 2026 11:31 PM
> To: Wang, Mingyu/王 鸣瑜 <wangmy@fujitsu.com>;
> openembedded-core@lists.openembedded.org
> Subject: Re: [PATCH] [OE-core] [PATCH v2] lttng-tools: upgrade 2.14.1 -> 2.15.0
>
> On Fri Apr 10, 2026 at 12:28 PM CEST, Mingyu Wang (Fujitsu) wrote:
> > I have sent a v2 patch of lttng-ust to fix this ptest error.
>
> Thanks, but I believe the errors are still present:
>
> https://autobuilder.yoctoproject.org/valkyrie/#/builders/61/builds/3471
> https://autobuilder.yoctoproject.org/valkyrie/#/builders/73/builds/3494
>
> Also, we got some reproducibility error:
>
> https://autobuilder.yoctoproject.org/valkyrie/#/builders/37/builds/3813
> https://valkyrie.yocto.io/pub/repro-fail/oe-reproducible-20260412-qjuiol67/pack
> ages/diff-html/
>
> Thanks,
> Mathieu
>
> --
> Mathieu Dubois-Briand, Bootlin
> Embedded Linux and Kernel engineering
> https://bootlin.com