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Mon, 30 May 2022 22:30:40 +0000 Date: Tue, 31 May 2022 06:30:07 +0800 From: kernel test robot To: Josh Poimboeuf Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, Peter Zijlstra , Miroslav Benes Subject: vmlinux.o: warning: objtool: __fentry__+0x16: return with modified stack frame Message-ID: <202205310609.Rw55oP08-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline 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: e11a93567d3f1e843300ed98ff049a4335db8015 commit: 72064474964724c59ddff58a581a31b1ede75cf9 objtool: Make stack validation frame-pointer-specific date: 6 weeks ago config: x86_64-buildonly-randconfig-r006-20220530 (https://download.01.org/0day-ci/archive/20220531/202205310609.Rw55oP08-lkp@intel.com/config) compiler: gcc-11 (Debian 11.3.0-1) 11.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=72064474964724c59ddff58a581a31b1ede75cf9 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 72064474964724c59ddff58a581a31b1ede75cf9 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable 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__+0x16: return with modified stack frame vmlinux.o: warning: objtool: fixup_bad_iret+0x7f: call to ftrace_likely_update() leaves .noinstr.text section vmlinux.o: warning: objtool: noist_exc_debug+0x45: call to ftrace_likely_update() leaves .noinstr.text section vmlinux.o: warning: objtool: exc_nmi+0x3a: call to ftrace_likely_update() leaves .noinstr.text section vmlinux.o: warning: objtool: poke_int3_handler+0x49: call to ftrace_likely_update() leaves .noinstr.text section vmlinux.o: warning: objtool: mce_check_crashing_cpu+0xc: call to __this_cpu_preempt_check.constprop.0() leaves .noinstr.text section vmlinux.o: warning: objtool: mce_wrmsrl+0x12: call to __this_cpu_preempt_check.constprop.0() leaves .noinstr.text section vmlinux.o: warning: objtool: mce_start+0x53: call to __this_cpu_preempt_check.constprop.0() leaves .noinstr.text section vmlinux.o: warning: objtool: mce_rdmsrl+0x13: call to __this_cpu_preempt_check.constprop.0() leaves .noinstr.text section vmlinux.o: warning: objtool: do_machine_check+0x5c: call to ftrace_likely_update() leaves .noinstr.text section vmlinux.o: warning: objtool: exc_machine_check+0x7b: call to ftrace_likely_update() leaves .noinstr.text section vmlinux.o: warning: objtool: noist_exc_machine_check+0x22: call to __this_cpu_preempt_check.constprop.0() leaves .noinstr.text section vmlinux.o: warning: objtool: rcu_dynticks_eqs_enter+0x27: call to ftrace_likely_update() leaves .noinstr.text section vmlinux.o: warning: objtool: rcu_dynticks_eqs_exit+0x28: call to ftrace_likely_update() leaves .noinstr.text section vmlinux.o: warning: objtool: rcu_eqs_exit.constprop.0+0x34: call to ftrace_likely_update() leaves .noinstr.text section vmlinux.o: warning: objtool: rcu_eqs_enter.constprop.0+0x43: call to ftrace_likely_update() leaves .noinstr.text section vmlinux.o: warning: objtool: rcu_nmi_enter+0x3a: call to ftrace_likely_update() leaves .noinstr.text section vmlinux.o: warning: objtool: irqentry_nmi_enter+0x53: call to ftrace_likely_update() leaves .noinstr.text section vmlinux.o: warning: objtool: irqentry_nmi_exit+0x43: call to ftrace_likely_update() leaves .noinstr.text section vmlinux.o: warning: objtool: enter_from_user_mode+0x24: call to __kcsan_check_access() leaves .noinstr.text section vmlinux.o: warning: objtool: syscall_enter_from_user_mode+0x28: call to __kcsan_check_access() leaves .noinstr.text section vmlinux.o: warning: objtool: syscall_enter_from_user_mode_prepare+0x24: call to __kcsan_check_access() leaves .noinstr.text section vmlinux.o: warning: objtool: irqentry_enter_from_user_mode+0x24: call to __kcsan_check_access() 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