tree: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git locking/ww_rt_mutex head: 401531ec0e4c84f3d26d07d1171f893fee6a08aa commit: 401531ec0e4c84f3d26d07d1171f893fee6a08aa [18/18] locking/ww_mutex: test_ww_rt_mutex config: x86_64-randconfig-c022-20210718 (attached as .config) compiler: gcc-10 (Ubuntu 10.3.0-1ubuntu1~20.04) 10.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?... git remote add peterz-queue https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git git fetch --no-tags peterz-queue locking/ww_rt_mutex git checkout 401531ec0e4c84f3d26d07d1171f893fee6a08aa # save the attached .config to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; 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