CC: linux-kernel(a)vger.kernel.org TO: Thomas Gleixner <tglx(a)linutronix.de&gt; CC: Alexandre Chartre <alexandre.chartre(a)oracle.com&gt; Hi Thomas, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 8ac91e6c6033ebc12c5c1e4aa171b81a662bd70f commit: 5916d5f9b3347344a3d96ba6b54cf8e290eba96a bug: Annotate WARN/BUG/stackfail as noinstr safe date: 11 months ago config: x86_64-randconfig-r036-20210519 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 8e93d10633d751a3e9169bf9fa68326925ffa097) 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 # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 5916d5f9b3347344a3d96ba6b54cf8e290eba96a # 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; 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