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SubjectRe: [PATCH v5 03/10] kexec_file: factor out arch_kexec_kernel_*() from x86, powerpc
On Sat, Oct 14, 2017 at 07:37:04PM +0800, kbuild test robot wrote:
> Hi AKASHI,
>
> [auto build test WARNING on arm64/for-next/core]
> [also build test WARNING on v4.14-rc4 next-20171013]
> [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/AKASHI-Takahiro/arm64-kexec-add-kexec_file_load-support/20171012-003448
> base: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core
> config: x86_64-randconfig-in0-10141752 (attached as .config)
> compiler: gcc-4.6 (Debian 4.6.4-7) 4.6.4
> reproduce:
> # save the attached .config to linux build tree
> make ARCH=x86_64
>
> All warnings (new ones prefixed by >>):
>
> >> kernel/kexec_file.o: warning: objtool: _kexec_kernel_image_load()+0x31: unsupported stack register modification

I talked to Josh (objtool maintainer) and confirmed this is an issue
of objtool, not a bug in my patch.

-Takahiro AKASHI

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


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