CC: linux-kernel(a)vger.kernel.org CC: x86(a)kernel.org TO: Frederic Weisbecker <frederic(a)kernel.org&gt; CC: Thomas Gleixner <tglx(a)linutronix.de&gt; tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/core head: f80e21489590c00f46226d5802d900e6f66e5633 commit: a5dec9f82ab2ae486119f0b0820ea16db3e522c3 [3/20] posix-cpu-timers: Assert task sighand is locked while starting cputime counter config: x86_64-randconfig-a012-20210814 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 62df4df41c939205b2dc0a2a3bfb75b8c1ed74fa) 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 # https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=a5... git remote add tip https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git git fetch --no-tags tip timers/core git checkout a5dec9f82ab2ae486119f0b0820ea16db3e522c3 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross 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 warnings (new ones prefixed by >>): --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org