tree: https://git.kernel.org/pub/scm/linux/kernel/git/luto/linux.git x86/kentry head: b0d7a5e5a9b11a6ddb50b90e31877e3cb1f93362 commit: 9fd837e7e6824c280b33954f851de6e88bf97730 [9/10] kentry: Check that syscall entries and syscall exits match config: x86_64-randconfig-a012-20210321 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 14696baaf4c43fe53f738bc292bbe169eed93d5d) 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/luto/linux.git/commit/?id... git remote add luto https://git.kernel.org/pub/scm/linux/kernel/git/luto/linux.git git fetch --no-tags luto x86/kentry git checkout 9fd837e7e6824c280b33954f851de6e88bf97730 # 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 errors (new ones prefixed by >>): current->kentry_in_syscall = true; ~~~~~~~ ^ 1 error generated. vim +151 kernel/entry/common.c 141 142 long kentry_syscall_begin(struct pt_regs *regs, long syscall) 143 { 144 unsigned long work; 145 146 if (IS_ENABLED(CONFIG_DEBUG_ENTRY)) { 147 DEBUG_ENTRY_WARN_ONCE( 148 current->kentry_in_syscall, 149 "entering syscall %ld while already in a syscall", 150 syscall); 152 } 153 154 CT_WARN_ON(ct_state() != CONTEXT_KERNEL); 155 lockdep_assert_irqs_enabled(); 156 157 work = READ_ONCE(current_thread_info()->syscall_work); 158 159 if (work & SYSCALL_WORK_ENTER) 160 syscall = syscall_trace_enter(regs, syscall, work); 161 162 return syscall; 163 } 164 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org