linux-kernel - [peterz-queue:master 3/5] vmlinux.o: warning: objtool: do_machine_check()+0x4db: call to mca_msr

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Message-ID: <202201170731.quqbKbo5-lkp@intel.com>
Date:   Mon, 17 Jan 2022 07:56:35 +0800
From:   kernel test robot <lkp@...el.com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [peterz-queue:master 3/5] vmlinux.o: warning: objtool:
 do_machine_check()+0x4db: call to mca_msr_reg() leaves .noinstr.text section

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git master
head:   c268640c1e164a8084deae65b4d6136fff429eba
commit: 7ec51079b641eebeb984246bd42bf4bcece1d087 [3/5] Merge branch 'locking/core'
config: x86_64-randconfig-r014-20211215 (https://download.01.org/0day-ci/archive/20220117/202201170731.quqbKbo5-lkp@intel.com/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/peterz/queue.git/commit/?id=7ec51079b641eebeb984246bd42bf4bcece1d087
        git remote add peterz-queue https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git
        git fetch --no-tags peterz-queue master
        git checkout 7ec51079b641eebeb984246bd42bf4bcece1d087
        # 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 <lkp@...el.com>

All warnings (new ones prefixed by >>):

   vmlinux.o: warning: objtool: mce_read_aux()+0x63: call to mca_msr_reg() leaves .noinstr.text section
>> vmlinux.o: warning: objtool: do_machine_check()+0x4db: call to mca_msr_reg() leaves .noinstr.text section
   vmlinux.o: warning: objtool: enter_from_user_mode()+0x52: call to on_thread_stack() leaves .noinstr.text section
   vmlinux.o: warning: objtool: syscall_enter_from_user_mode()+0x59: call to on_thread_stack() leaves .noinstr.text section
   vmlinux.o: warning: objtool: syscall_enter_from_user_mode_prepare()+0x52: call to on_thread_stack() leaves .noinstr.text section
   vmlinux.o: warning: objtool: irqentry_enter_from_user_mode()+0x52: call to on_thread_stack() leaves .noinstr.text section

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org