linux-kernel - Re: [PATCH 3/4] x86/smp: send capped cpus to a stable state when smp

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Date:   Thu, 8 Aug 2019 10:36:31 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Pingfan Liu <kernelfans@...il.com>
Cc:     kbuild-all@...org, Thomas Gleixner <tglx@...utronix.de>,
        Andy Lutomirski <luto@...nel.org>, x86@...nel.org,
        Pingfan Liu <kernelfans@...il.com>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Masami Hiramatsu <mhiramat@...nel.org>, Qian Cai <cai@....pw>,
        Vlastimil Babka <vbabka@...e.cz>,
        Daniel Drake <drake@...lessm.com>,
        Jacob Pan <jacob.jun.pan@...ux.intel.com>,
        Michal Hocko <mhocko@...e.com>,
        Eric Biederman <ebiederm@...ssion.com>,
        linux-kernel@...r.kernel.org, Dave Young <dyoung@...hat.com>,
        Baoquan He <bhe@...hat.com>, kexec@...ts.infradead.org
Subject: Re: [PATCH 3/4] x86/smp: send capped cpus to a stable state when
 smp_init()

Hi Pingfan,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[cannot apply to v5.3-rc3 next-20190807]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Pingfan-Liu/x86-mce-protect-nr_cpus-from-rebooting-by-broadcast-mce/20190806-101748
config: i386-defconfig (attached as .config)
compiler: gcc-7 (Debian 7.4.0-10) 7.4.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   ld: arch/x86/kernel/smpboot.o: in function `bring_capped_cpu_stable':
>> smpboot.c:(.init.text+0x172): undefined reference to `initial_gs'

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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