Re: [OE-core] [PATCH 1/3] classes/insane: increase shebang size limit

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

On Tue Jun 30, 2026 at 4:07 PM CEST, Ross Burton via lists.openembedded.org wrote:
> Since Linux 5.1 the shebang buffer has been 256 bytes[1], so update the
> check to match.
>
> Also rewrite the test, create a variable for the magic number (that has
> the same name as the kernel #define), don't pointlessly try to decode
> the bytes as UTF-8, and consolidate the test logic to entirely inside
> the try block.
>
> [1] linux 6eb3c3d0a52dc ("exec: increase BINPRM_BUF_SIZE to 256")
> ---

Hi Ross,

Thanks for your patch.

I believe you also need to update the test_sysroot_max_shebang selftest
/ sysroot-shebang-test-native recipe:

2026-07-01 11:25:35,511 - oe-selftest - INFO - FAIL: sysroot.SysrootTests.test_sysroot_max_shebang (subunit.RemotedTestCase)
2026-07-01 11:25:35,511 - oe-selftest - INFO - ----------------------------------------------------------------------
2026-07-01 11:25:35,511 - oe-selftest - INFO - testtools.testresult.real._StringException: Traceback (most recent call last):
  File "/srv/pokybuild/yocto-worker/oe-selftest-debian/build/layers/openembedded-core/meta/lib/oeqa/selftest/cases/sysroot.py", line 49, in test_sysroot_max_shebang
    self.assertTrue(expected in res.output, msg=res.output)
  File "/usr/lib/python3.12/unittest/case.py", line 727, in assertTrue
    raise self.failureException(msg)
AssertionError: False is not true : NOTE: Reconnecting to bitbake server...

https://autobuilder.yoctoproject.org/valkyrie/#/builders/35/builds/4183
https://autobuilder.yoctoproject.org/valkyrie/#/builders/48/builds/4010

Thanks,
Mathieu

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