On Sun, Sep 27, 2026 at 9:29 AM Alex Deucher <[email protected]> wrote: > > On Sat, Sep 26, 2026 at 6:37 AM Thorsten Leemhuis > <[email protected]> wrote: > > > > 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. > > + Leo, Alex > > Looks like some combination of compiler and/or config options explodes > the stack even further than the recent changes handled.
Should be fixed with this patch: https://patchwork.freedesktop.org/patch/756590/?series=175063&rev=1 Alex > > Alex > > > > > 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 > > > 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: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 > > > > > > -- > > > This is an experimental report format. Please send feedback in! > > > Talk to us at [email protected] > > > > > > Made with love by the KernelCI team - https://kernelci.org > >
