[memcg:akpm/kcov 4/4] /tmp/ccMETRHQ.s:35: Error: .err encountered

[memcg:akpm/kcov 4/4] /tmp/ccMETRHQ.s:35: Error: .err encountered

[kbuild test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mhocko/mm.git akpm/kcov
head:   99027ccd1ec1b31fc74d63df2f13945ae44da62a
commit: 99027ccd1ec1b31fc74d63df2f13945ae44da62a [4/4] arm: port KCOV to arm
config: arm-allmodconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 99027ccd1ec1b31fc74d63df2f13945ae44da62a
        # save the attached .config to linux build tree
        make.cross ARCH=arm 

All errors (new ones prefixed by >>):

   /tmp/ccMETRHQ.s: Assembler messages:
>> /tmp/ccMETRHQ.s:35: Error: .err encountered
   /tmp/ccMETRHQ.s:36: Error: .err encountered
   /tmp/ccMETRHQ.s:37: Error: .err encountered

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

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Re: [memcg:akpm/kcov 4/4] /tmp/ccMETRHQ.s:35: Error: .err encountered

[Michal Hocko]

On Mon 11-06-18 14:57:10, kbuild test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mhocko/mm.git akpm/kcov
> head:   99027ccd1ec1b31fc74d63df2f13945ae44da62a
> commit: 99027ccd1ec1b31fc74d63df2f13945ae44da62a [4/4] arm: port KCOV to arm
> config: arm-allmodconfig (attached as .config)
> compiler: arm-linux-gnueabi-gcc (Debian 7.2.0-11) 7.2.0
> reproduce:
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         git checkout 99027ccd1ec1b31fc74d63df2f13945ae44da62a
>         # save the attached .config to linux build tree
>         make.cross ARCH=arm 
> 
> All errors (new ones prefixed by >>):
> 
>    /tmp/ccMETRHQ.s: Assembler messages:
> >> /tmp/ccMETRHQ.s:35: Error: .err encountered
>    /tmp/ccMETRHQ.s:36: Error: .err encountered
>    /tmp/ccMETRHQ.s:37: Error: .err encountered

Huh, what is this supposed to mean?

-- 
Michal Hocko
SUSE Labs

Re: [memcg:akpm/kcov 4/4] /tmp/ccMETRHQ.s:35: Error: .err encountered

[Dmitry Vyukov]

On Mon, Jun 11, 2018 at 9:09 AM, Michal Hocko <mhocko@suse.com> wrote:
> On Mon 11-06-18 14:57:10, kbuild test robot wrote:
>> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mhocko/mm.git akpm/kcov
>> head:   99027ccd1ec1b31fc74d63df2f13945ae44da62a
>> commit: 99027ccd1ec1b31fc74d63df2f13945ae44da62a [4/4] arm: port KCOV to arm
>> config: arm-allmodconfig (attached as .config)
>> compiler: arm-linux-gnueabi-gcc (Debian 7.2.0-11) 7.2.0
>> reproduce:
>>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>>         chmod +x ~/bin/make.cross
>>         git checkout 99027ccd1ec1b31fc74d63df2f13945ae44da62a
>>         # save the attached .config to linux build tree
>>         make.cross ARCH=arm
>>
>> All errors (new ones prefixed by >>):
>>
>>    /tmp/ccMETRHQ.s: Assembler messages:
>> >> /tmp/ccMETRHQ.s:35: Error: .err encountered
>>    /tmp/ccMETRHQ.s:36: Error: .err encountered
>>    /tmp/ccMETRHQ.s:37: Error: .err encountered
>
> Huh, what is this supposed to mean?


I think that Arnd has fixed this with "ARM: disable KCOV for
trusted foundations code" now:
https://patchwork.kernel.org/patch/10434909/
The failure mode he referenced matches reported here.