Re: [OE-core] [meta][PATCH 03/06] linux-yocto/7.2: introduce reference kernel recipes

["Mathieu Dubois-Briand" <mathieu.dubois-briand@bootlin.com>]

On Fri Aug 21, 2026 at 1:25 PM CEST, Bruce Ashfield via lists.openembedded.org wrote:
> From: Bruce Ashfield <bruce.ashfield@gmail.com>
>
> 7.2 is our next versioned reference kernel. The standard, preempt-rt
> (v7.2-rc4-rt3) and tiny variants are all generated and available.
>
> Signed SRCREVs point at the freshly generated v7.2 branches; the kmeta
> tracks the yocto-7.2 branch.
>
> Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
> ---

Hi Bruce,

I tested the 7.2 kernel, using this commit in meta-yocto:

https://git.yoctoproject.org/meta-yocto/commit/?h=contrib/mathieu/master-next-tests-72&id=98c8b2ca0c149201f6b2ee52157ca460fd0a2eb4

So far, I saw two different errors.


First, a fail of kernelmodule.KernelModuleTest.test_kernel_module on qemux86:
Traceback (most recent call last):
  File "/srv/pokybuild/yocto-worker/qemux86/build/layers/openembedded-core/meta/lib/oeqa/core/decorator/__init__.py", line 35, in wrapped_f
    return func(*args, **kwargs)
  File "/srv/pokybuild/yocto-worker/qemux86/build/layers/openembedded-core/meta/lib/oeqa/core/decorator/__init__.py", line 35, in wrapped_f
    return func(*args, **kwargs)
  File "/srv/pokybuild/yocto-worker/qemux86/build/layers/openembedded-core/meta/lib/oeqa/core/decorator/__init__.py", line 35, in wrapped_f
    return func(*args, **kwargs)
  [Previous line repeated 2 more times]
  File "/srv/pokybuild/yocto-worker/qemux86/build/layers/openembedded-core/meta/lib/oeqa/runtime/cases/kernelmodule.py", line 48, in test_kernel_module
    self.assertEqual(status, 0, msg='\n'.join([cmd, output]))
    ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: 2 != 0 : cd /usr/src/kernel && make scripts prepare
...
In file included from ./include/uapi/linux/elf.h:5,
                 from arch/x86/tools/vdso2c.c:66:
./include/uapi/linux/types.h:10:2: warning: #warning "Attempt to use kernel headers from user space, see https://kernelnewbies.org/KernelHeaders" [-Wcpp]
   10 | #warning "Attempt to use kernel headers from user space, see https://kernelnewbies.org/KernelHeaders"
      |  ^~~~~~~
arch/x86/tools/vdso2c.c:74:9: error: unknown type name 'bool'
   74 |         bool export;
      |         ^~~~
arch/x86/tools/vdso2c.c:69:1: note: 'bool' is defined in header '<stdbool.h>'; this is probably fixable by adding '#include <stdbool.h>'
...
make: *** [Makefile:248: __sub-make] Error 2

https://autobuilder.yoctoproject.org/valkyrie/#/builders/30/builds/4474
https://autobuilder.yoctoproject.org/valkyrie/#/builders/20/builds/4437

And then, failure in runtime_test.RustKernel.test_kernel_rust_sample
selftest:
2026-08-26 14:11:09,216 - oe-selftest - INFO - runtime_test.RustKernel.test_kernel_rust_sample (subunit.RemotedTestCase)
2026-08-26 14:11:09,221 - oe-selftest - INFO -  ... FAIL

Stderr:
2026-08-26 13:52:43,328 - oe-selftest - INFO - Adding: "include selftest.inc" in /srv/pokybuild/yocto-worker/oe-selftest-debian/build/build-st-803204/conf/local.conf
2026-08-26 13:52:43,328 - oe-selftest - INFO - Adding: "include bblayers.inc" in bblayers.conf
WARNING: test: LICENSE is using "CLOSED", which is deprecated. Convert to using a license ref pointing to an actual license file, e.g.
LICENSE = "LicenseRef-test-CLOSED"
WARNING: test: LICENSE is using "CLOSED", which is deprecated. Convert to using a license ref pointing to an actual license file, e.g.
LICENSE = "LicenseRef-test-CLOSED"
ERROR: When reparsing /tmp/selftest-fetch8rb2fo4w/test.bb:do_checkuri, the basehash value changed from eaf531c7d0304fd45f77fab173d0399db2b76e45cd46487426eb74bae7d4b7bb to 2cdec1b5839750d0c5998dd35b7ab7380727d2fa3a33aed864144428d3a78f7d. The metadata is not deterministic and this needs to be fixed.
ERROR: The following commands may help:
ERROR: $ bitbake test -cdo_checkuri -Snone
ERROR: Then:
ERROR: $ bitbake test -cdo_checkuri -Sprintdiff

I suspect the warning about the LICENSE value is unrelated, but is
something else I should fix.

https://autobuilder.yoctoproject.org/valkyrie/#/builders/35/builds/4680
https://autobuilder.yoctoproject.org/valkyrie/#/builders/48/builds/4502
https://autobuilder.yoctoproject.org/valkyrie/#/builders/23/builds/4724

Thanks,
Mathieu

-- 
Mathieu Dubois-Briand, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com