On 6/5/26 06:23, Randy Dunlap wrote: > [adding amd-gfx] [+Nathan -- I'm also wondering if we should CC the amdgpu maintainers, but lets wait with that for a moment]
Nathan afaics saw this problem a few weeks ago already and filed and issue for tracking: https://github.com/ClangBuiltLinux/linux/issues/2161 To quote from there: ""After LLVM commit 8ac9461e48e0 ("[SLP] Reject 2-element vectorization when vector inst count exceeds scalar", 2026-04-11), I am seeing two new -Wframe-larger-than instances from drivers/gpu/drm/amd/display […]"" Side note: I wonder if that LLVM commit somehow made it to the KernelCI env, or if something in the amdgpu code in -next changed and made the problem worse. Ciao, Thorsten > On 6/4/26 10:59 AM, KernelCI bot wrote: >> Hello, >> >> New build issue found on next/master: >> >> --- >> stack frame size (2088) exceeds limit (2048) in >> 'dml31_ModeSupportAndSystemConfigurationFull' [-Werror,-Wframe-larger-than] >> in drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn31/display_mode_vba_31.o >> (drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn31/display_mode_vba_31.c) >> [logspec:kbuild,kbuild.compiler.error] >> --- >> >> - dashboard: >> https://d.kernelci.org/i/maestro:96417cd30041ab8f3153128d0120c6cd70782d99 >> - giturl: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git >> - commit HEAD: b99ae45861eccff1e1d8c7b05a13650be805d437 >> - tags: next-20260604 >> >> Please include the KernelCI tag when submitting a fix: >> >> Reported-by: kernelci.org bot <[email protected]> >> >> >> Log excerpt: >> ===================================================== >> /tmp/kci/linux/drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn31/display_mode_vba_31.c:3872:6: >> error: stack frame size (2088) exceeds limit (2048) in >> 'dml31_ModeSupportAndSystemConfigurationFull' [-Werror,-Wframe-larger-than] >> 3872 | void dml31_ModeSupportAndSystemConfigurationFull(struct >> display_mode_lib *mode_lib) >> | ^ >> 1 error generated. >> >> ===================================================== >> >> >> # Builds where the incident occurred: >> >> ## x86_64_defconfig+kselftest+x86-board on (x86_64): >> - compiler: clang-21 >> - config: None >> - dashboard: https://d.kernelci.org/build/maestro:6a21abf22cc72b6e94bf3c60 >> >> >> #kernelci issue maestro:96417cd30041ab8f3153128d0120c6cd70782d99 >> >> -- >> 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 >> >
