reproduce (this is a W=1 build): git clone https://github.com/intel/lkp-tests.git ~/lkp-tests git remote add chrome-os https://chromium.googlesource.com/chromiumos/third_party/kernel git fetch --no-tags chrome-os chromeos-6.6 git checkout eb3cf66b297421942619a5d2c2c3fa5ec1373e30 # save the config file mkdir build_dir && cp config build_dir/.config ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm64 olddefconfig ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash dtbs_check