Messages in this thread | | | Date | Sun, 22 Aug 2021 13:39:40 +0800 | From | kernel test robot <> | Subject | vmlinux.o: warning: objtool: mce_wrmsrl.constprop.0()+0x6b: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 9ff50bf2f2ff5fab01cac26d8eed21a89308e6ef commit: e100777016fdf6ec3a9d7c1773b15a2b5eca6c55 x86/mce: Annotate mce_rd/wrmsrl() with noinstr date: 11 months ago config: x86_64-buildonly-randconfig-r003-20210822 (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/?id=e100777016fdf6ec3a9d7c1773b15a2b5eca6c55 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout e100777016fdf6ec3a9d7c1773b15a2b5eca6c55 # 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@intel.com>
All warnings (new ones prefixed by >>):
>> vmlinux.o: warning: objtool: mce_wrmsrl.constprop.0()+0x6b: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section vmlinux.o: warning: objtool: do_machine_check()+0xe1a: call to mce_panic.isra.0() leaves .noinstr.text section vmlinux.o: warning: objtool: exc_machine_check()+0x1af: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section vmlinux.o: warning: objtool: lock_is_held_type()+0x3c: call to check_flags() leaves .noinstr.text section vmlinux.o: warning: objtool: __context_tracking_enter()+0x9d: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section vmlinux.o: warning: objtool: __context_tracking_exit()+0x42: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
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