On 9/26/26 05:59, KernelCI bot wrote:
> New build issue found on mainline/master:
> 
> ---
> stack frame size (3096) exceeds limit (3072) in 'dml_core_mode_programming' 
> [-Werror,-Wframe-larger-than] in 
> drivers/gpu/drm/amd/amdgpu/../display/dc/dml2_0/dml21/src/dml2_core/dml2_core_dcn4_calcs.o
>  
> (drivers/gpu/drm/amd/amdgpu/../display/dc/dml2_0/dml21/src/dml2_core/dml2_core_dcn4_calcs.c)
>  [logspec:kbuild,kbuild.compiler.error]
> ---
> 
> Log excerpt:
> =====================================================
> /tmp/kci/linux/drivers/gpu/drm/amd/amdgpu/../display/dc/dml2_0/dml21/src/dml2_core/dml2_core_dcn4_calcs.c:10513:13:
>  error: stack frame size (3096) exceeds limit (3072) in 
> 'dml_core_mode_programming' [-Werror,-Wframe-larger-than]
>  10513 | static bool dml_core_mode_programming(struct 
> dml2_core_calcs_mode_programming_ex *in_out_params)
>        |             ^
> 1 error generated.

Hmmm, there are known "stack frame size [...] exceeds limit" problems in
-next that should soon be fixed there, see:
https://lore.kernel.org/all/cadnq5_mfmrir-b3ex0mtzshpdgubgwoobgumejj9cjqdmdm...@mail.gmail.com/

But this error is new -- and happens in mainline. Wondering if this is
caused by a fix for those problems.

CCing Alex and Christian in case this is really something new they want
to know about.

Ciao, Thorsten

> =====================================================
> 
> When fixing this issue, please attribute this report according to the
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> 
> Reported-by: kernelci.org bot <[email protected]>
> Link: 
> https://lore.kernel.org/all/[email protected]/
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> For complete logs and details about the environment used, see the issue
> on the KernelCI dashboard:
> 
> - dashboard: 
> https://d.kernelci.org/i/maestro:24dc0670f5eb776888969170a199e08b7f23f99b
> - giturl: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> - commit HEAD:  6812ce4e4379ffc99c52401ec28f0d7ffbc36206
> 
> # Builds where the incident occurred:
> 
> ## x86_64_defconfig+allmodconfig on (x86_64):
> - compiler: clang-21
> - config: None
> - dashboard: https://d.kernelci.org/build/maestro:6ab70c1f5ec73975aade9d6e
> 
> #regzbot introduced: 
> f14572c203d57492e1d4e5d7851a3b143e083b82..6812ce4e4379ffc99c52401ec28f0d7ffbc36206
> #regzbot link: 
> https://d.kernelci.org/i/maestro:24dc0670f5eb776888969170a199e08b7f23f99b
> 
> #kernelci issue maestro:24dc0670f5eb776888969170a199e08b7f23f99b
> 
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