linux-kernel - Re: [kbuild-all] Re: [patch 06/12] x86/entry: Convert system vectors to irq stack macro

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Date:   Sun, 7 Feb 2021 16:15:11 +0800
From:   Rong Chen <rong.a.chen@...el.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        kernel test robot <lkp@...el.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        LKML <linux-kernel@...r.kernel.org>, kbuild-all@...ts.01.org,
        x86@...nel.org, Kees Cook <keescook@...omium.org>
Subject: Re: [kbuild-all] Re: [patch 06/12] x86/entry: Convert system vectors
 to irq stack macro



On 2/5/21 10:13 PM, Peter Zijlstra wrote:
> On Fri, Feb 05, 2021 at 11:52:40AM +0800, kernel test robot wrote:
>> Hi Thomas,
>>
>> I love your patch! Perhaps something to improve:
>>
>> [auto build test WARNING on tip/x86/asm]
>> [also build test WARNING on tip/master linus/master tip/x86/core v5.11-rc6 next-20210125]
>> [If your patch is applied to the wrong git tree, kindly drop us a note.
>> And when submitting patch, we suggest to use '--base' as documented in
>> https://git-scm.com/docs/git-format-patch]
>>
>> url:    https://github.com/0day-ci/linux/commits/Thomas-Gleixner/x86-irq-64-Inline-irq-stack-switching/20210205-091059
>> base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 5c99720b28381bb400d4f546734c34ddaf608761
>> config: x86_64-randconfig-r026-20210204 (attached as .config)
>> compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
>> reproduce (this is a W=1 build):
>>          # https://github.com/0day-ci/linux/commit/d91ff58e804175dd59e483c7cf236e1fe66c2187
>>          git remote add linux-review https://github.com/0day-ci/linux
>>          git fetch --no-tags linux-review Thomas-Gleixner/x86-irq-64-Inline-irq-stack-switching/20210205-091059
>>          git checkout d91ff58e804175dd59e483c7cf236e1fe66c2187
>>          # save the attached .config to linux build tree
>>          make W=1 ARCH=x86_64
>>
>> 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 >>):
>>
>>>> arch/x86/hyperv/hv_init.o: warning: objtool: sysvec_hyperv_reenlightenment()+0x7f: undefined stack state
>> --
>>>> arch/x86/kernel/cpu/mshyperv.o: warning: objtool: sysvec_hyperv_callback()+0x7f: undefined stack state
>>>> arch/x86/kernel/cpu/mshyperv.o: warning: objtool: sysvec_hyperv_stimer0()+0x7f: undefined stack state
> It would help if you'd actually applied the patches to a tree that had
> the required objtool patches as described in 0/n. Or better yet, don't
> scrape emails if the 0/n includes a git link which you'll run on anyway.

Hi Peter,

Thanks for the advice, we'll add the check to our cluster,
and sorry for the inconvenience.

Best Regards,
Rong Chen