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Mon, 11 Apr 2022 13:05:07 +0000 Date: Mon, 11 Apr 2022 21:04:57 +0800 From: kernel test robot To: Peter Zijlstra Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org Subject: vmlinux.o: warning: objtool: __fentry__()+0x8c: call without frame pointer save/setup Message-ID: <202204112113.ys4DIvVl-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: ce522ba9ef7e2d9fb22a39eb3371c0c64e2a433e commit: ed53a0d971926e484d86cce617ec02a7ee85c3fe x86/alternative: Use .ibt_endbr_seal to seal indirect calls date: 4 weeks ago config: x86_64-randconfig-r022-20220411 (https://download.01.org/0day-ci/archive/20220411/202204112113.ys4DIvVl-lkp@intel.com/config) compiler: gcc-11 (Debian 11.2.0-19) 11.2.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ed53a0d971926e484d86cce617ec02a7ee85c3fe git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout ed53a0d971926e484d86cce617ec02a7ee85c3fe # save the config file 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 All warnings (new ones prefixed by >>): vmlinux.o: warning: objtool: ibt_selftest()+0x11: sibling call from callable instruction with modified stack frame >> vmlinux.o: warning: objtool: __fentry__()+0x8c: call without frame pointer save/setup vmlinux.o: warning: objtool: do_syscall_64()+0x10: call to static_key_count.constprop.0() leaves .noinstr.text section vmlinux.o: warning: objtool: mce_start()+0x3d: call to __kcsan_check_access() leaves .noinstr.text section vmlinux.o: warning: objtool: mce_gather_info()+0x3f: call to v8086_mode.constprop.0() leaves .noinstr.text section vmlinux.o: warning: objtool: mce_read_aux()+0xe4: call to mca_msr_reg() leaves .noinstr.text section vmlinux.o: warning: objtool: do_machine_check()+0xab: call to mce_no_way_out() leaves .noinstr.text section vmlinux.o: warning: objtool: mce_severity_amd.constprop.0()+0x45: call to mce_severity_amd_smca() leaves .noinstr.text section vmlinux.o: warning: objtool: enter_from_user_mode()+0x1d: call to test_bit() leaves .noinstr.text section vmlinux.o: warning: objtool: syscall_enter_from_user_mode()+0x21: call to test_bit() leaves .noinstr.text section vmlinux.o: warning: objtool: syscall_enter_from_user_mode_prepare()+0x1d: call to test_bit() leaves .noinstr.text section vmlinux.o: warning: objtool: exit_to_user_mode()+0x1f: call to static_key_count() leaves .noinstr.text section vmlinux.o: warning: objtool: syscall_exit_to_user_mode()+0x38: call to static_key_count() leaves .noinstr.text section vmlinux.o: warning: objtool: irqentry_enter_from_user_mode()+0x1d: call to test_bit() leaves .noinstr.text section vmlinux.o: warning: objtool: irqentry_exit_to_user_mode()+0x26: call to static_key_count() leaves .noinstr.text section vmlinux.o: warning: objtool: ibt_selftest()+0x1e: return with modified stack frame -- 0-DAY CI Kernel Test Service https://01.org/lkp