tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 50be9417e23af5a8ac860d998e1e3f06b8fd79d7 commit: d187f217335dba2b49fc9002aab2004e04acddee x86/sev: Make sure IRQs are disabled while GHCB is active date: 3 weeks ago config: x86_64-buildonly-randconfig-r006-20210710 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # 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 d187f217335dba2b49fc9002aab2004e04acddee # 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 warnings (new ones prefixed by >>): vmlinux.o: warning: objtool: vc_switch_off_ist()+0x15: call to ip_within_syscall_gap.isra.0() leaves .noinstr.text section vmlinux.o: warning: objtool: exc_nmi()+0x13: call to static_key_count() leaves .noinstr.text section vmlinux.o: warning: objtool: mce_setup()+0xf: call to memset() leaves .noinstr.text section vmlinux.o: warning: objtool: do_machine_check()+0x49: call to mce_gather_info() leaves .noinstr.text section vmlinux.o: warning: objtool: __sev_es_nmi_complete()+0x2c: call to __memset() leaves .noinstr.text section vmlinux.o: warning: objtool: enter_from_user_mode()+0x3b: call to on_thread_stack() leaves .noinstr.text section vmlinux.o: warning: objtool: syscall_enter_from_user_mode()+0x46: call to on_thread_stack() leaves .noinstr.text section vmlinux.o: warning: objtool: syscall_enter_from_user_mode_prepare()+0x3b: call to on_thread_stack() leaves .noinstr.text section vmlinux.o: warning: objtool: irqentry_enter_from_user_mode()+0x3b: call to on_thread_stack() leaves .noinstr.text section vmlinux.o: warning: objtool: debug_locks_off()+0x19: call to __kasan_check_write() leaves .noinstr.text section --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org