Messages in this thread | | | Subject | Re: [kbuild-all] Re: vmlinux.o: warning: objtool: do_machine_check()+0x5fa: call to memset() leaves .noinstr.text section | From | "Chen, Rong A" <> | Date | Wed, 27 Oct 2021 15:26:22 +0800 |
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On 10/26/2021 4:23 PM, Borislav Petkov wrote: > Hi, > > On Tue, Oct 26, 2021 at 04:16:21PM +0800, kernel test robot wrote: >> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master >> head: 3906fe9bb7f1a2c8667ae54e967dc8690824f4ea >> commit: 7bb39313cd6239e7eb95198950a02b4ad2a08316 x86/mce: Make mce_timed_out() identify holdout CPUs >> date: 10 months ago >> config: x86_64-buildonly-randconfig-r006-20211022 (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=7bb39313cd6239e7eb95198950a02b4ad2a08316 >> git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git >> git fetch --no-tags linus master >> git checkout 7bb39313cd6239e7eb95198950a02b4ad2a08316 >> # 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: do_machine_check()+0x5fa: call to memset() leaves .noinstr.text section > > if you have the technical capability to ignore all noinstr warnings > coming from the mce code, please do so. > > I have a patchset to address that but more important work preempts me > constantly from cleaning it up and sending it out properly. ;-\ >
Hi Borislav,
Thanks for the feedback, We have ignored these warnings from mce.
Best Regards, Rong Chen
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