TO: cros-kernel-buildreports(a)googlegroups.com TO: Guenter Roeck <groeck(a)google.com&gt; Hi Linux, First bad commit (maybe != root cause): tree: https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-4.4 head: 3b6a904f7f8252098cad6232d596d8df5a89f93a commit: 5adcddf86f1820d359dd4ff9ee933a82b80a73f5 [1/4] UPSTREAM: drm/mediatek: Add exception handing in mtk_drm_probe() if component init fail config: x86_64-randconfig-a004-20200921 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 6a6b06f5262bb96523eceef4a42fe8e60ae2a630) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu git checkout 5adcddf86f1820d359dd4ff9ee933a82b80a73f5 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; Note: the chrome-os/chromeos-4.4 HEAD 3b6a904f7f8252098cad6232d596d8df5a89f93a builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org