Re: [REGRESSION] mainline/master: (build) in arch/x86/include/generated/asm/cpufeaturemasks.h (arch/x86/Make...

On 8/21/26 20:59, KernelCI bot wrote:
> New build issue found on mainline/master:
> 
> ---
>  in arch/x86/include/generated/asm/cpufeaturemasks.h (arch/x86/Makefile:269) [logspec:kbuild,kbuild.other]
> ---
> 
> Log excerpt:

Hmmm, nobody else reported this -- and I failed when I briefly tried to
to reproduce this. Wondering if something with the test setup is going
sideways here.

Furthermore, these two seem to be related or the same error:

https://d.kernelci.org/issue/maestro%3Ae019eff33641f280144d13719cbbf59eb379327c
https://d.kernelci.org/issue/maestro%3A4f457c5cde619e65f938d53b68735abd5858719f

Anybody any idea what's wrong here?

Ciao, THorsten

> =====================================================
> Kernel: arch/x86/boot/bzImage is ready  (#1)
> + stage=2
> + cd ..
> + echo job:build_kernel=done
> ++ date +%s
> + echo jobets:build_kernel=1787335473
> + echo -----log:build_modules-----
> -----log:build_modules-----
> + echo job:build_modules=running
> ++ date +%s
> + echo jobsts:build_modules=1787335473
> + cd /tmp/kci/linux
> + set +eE -o pipefail
> + trap - ERR
> + grep CONFIG_MODULES=y .config
> CONFIG_MODULES=y
> + '[' 0 -eq 0 ']'
> + set -eE -o pipefail
> + trap 'case $stage in
> + stage=1
> ++ nproc
> + make -j16 modules
> ++ tee /tmp/kci/artifacts/build_modules.log
> ++ tee /tmp/kci/artifacts/build_modules_stderr.log
> mv: cannot stat 'arch/x86/include/generated/asm/.tmp_cpufeaturemasks.h': No such file or directory
> 
> =====================================================
> 
> When fixing this issue, please attribute this report according to the
> patch submission rules:
> 
> Reported-by: kernelci.org bot <[email protected]>
> Link: https://lore.kernel.org/all/[email protected]/
> 
> For complete logs and details about the environment used, see the issue
> on the KernelCI dashboard:
> 
> - dashboard: https://d.kernelci.org/i/maestro:4f457c5cde619e65f938d53b68735abd5858719f
> - giturl: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> - commit HEAD:  531ed942bb0df04f6747983fecdedce76a22d07f
> 
> # Builds where the incident occurred:
> 
> ## i386_defconfig+allnoconfig on (i386):
> - compiler: clang-21
> - config: https://files.kernelci.org/kbuild-clang-21-i386-allnoconfig-6a888db362f33761c0fe21dc/.config
> - dashboard: https://d.kernelci.org/build/maestro:6a888db362f33761c0fe21dc
> 
> ## i386_defconfig+kselftest on (i386):
> - compiler: gcc-14
> - config: https://files.kernelci.org/kbuild-gcc-14-i386-kselftest-6a888e4262f33761c0fe2442/.config
> - dashboard: https://d.kernelci.org/build/maestro:6a888e4262f33761c0fe2442
> 
> #regzbot introduced: 818bebeb63dd6bf5f4e07e145f6cdbace520a34c..531ed942bb0df04f6747983fecdedce76a22d07f
> #regzbot link: https://d.kernelci.org/i/maestro:4f457c5cde619e65f938d53b68735abd5858719f
> 
> #kernelci issue maestro:4f457c5cde619e65f938d53b68735abd5858719f
> 
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