CC: linux-kernel(a)vger.kernel.org TO: Jani Nikula <jani.nikula(a)intel.com&gt; CC: Daniel Vetter <daniel.vetter(a)ffwll.ch&gt; tree: git://anongit.freedesktop.org/drm/drm-misc for-linux-next head: cd06ab2fd48f2c0243b06344a36056e811d263b8 commit: cd06ab2fd48f2c0243b06344a36056e811d263b8 [1/1] drm/locking: add backtrace for locking contended locks without backoff config: x86_64-randconfig-r026-20211014 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project acb3b187c4c88650a6a717a1bcb234d27d0d7f54) 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 git remote add drm-misc git://anongit.freedesktop.org/drm/drm-misc git fetch --no-tags drm-misc for-linux-next git checkout cd06ab2fd48f2c0243b06344a36056e811d263b8 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/gpu/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org