From: kernel test robot <lkp@intel.com>
To: kbuild-all@lists.01.org
Subject: vmlinux.o: warning: objtool: look_up_lock_class()+0x67: call to rcu_read_lock_any_held() leaves .noinstr.text section
Date: Fri, 30 Jul 2021 23:54:12 +0800 [thread overview]
Message-ID: <202107302308.uW73myJG-lkp@intel.com> (raw)
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CC: linux-kernel(a)vger.kernel.org
TO: Peter Zijlstra <peterz@infradead.org>
CC: Ingo Molnar <mingo@kernel.org>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 764a5bc89b12b82c18ce7ca5d7c1b10dd748a440
commit: 49faa77759b211fff344898edc23bb780707fff5 locking/lockdep: Improve noinstr vs errors
date: 5 weeks ago
config: x86_64-buildonly-randconfig-r002-20210730 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 4f71f59bf3d9914188a11d0c41bedbb339d36ff5)
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/torvalds/linux.git/commit/?id=49faa77759b211fff344898edc23bb780707fff5
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 49faa77759b211fff344898edc23bb780707fff5
# 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@intel.com>
All warnings (new ones prefixed by >>):
vmlinux.o: warning: objtool: do_syscall_64()+0x48: call to memset() leaves .noinstr.text section
vmlinux.o: warning: objtool: __rdgsbase_inactive()+0x31: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: __wrgsbase_inactive()+0x34: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: fixup_bad_iret()+0x1e: call to memset() leaves .noinstr.text section
vmlinux.o: warning: objtool: noist_exc_debug()+0x3a: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: exc_nmi()+0x2f: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: poke_int3_handler()+0x53: call to ftrace_likely_update() leaves .noinstr.text section
>> vmlinux.o: warning: objtool: look_up_lock_class()+0x67: call to rcu_read_lock_any_held() leaves .noinstr.text section
vmlinux.o: warning: objtool: rcu_eqs_enter()+0x35: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: rcu_dynticks_eqs_enter()+0x30: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: rcu_irq_exit()+0x30: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: rcu_eqs_exit()+0x39: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: rcu_nmi_enter()+0x31: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: rcu_dynticks_eqs_exit()+0x36: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: rcu_irq_enter()+0x30: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: enter_from_user_mode()+0x3b: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode()+0x47: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode_prepare()+0x3b: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_enter_from_user_mode()+0x3b: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_exit()+0x37: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_nmi_enter()+0x48: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_nmi_exit()+0x6d: call to ftrace_likely_update() leaves .noinstr.text section
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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