[PATCH] powerpc/perf: Fix kernel address leaks via Sampling registers

Madhavan Srinivasan maddy at linux.vnet.ibm.com
Wed Mar 7 15:56:34 AEDT 2018

On Tuesday 06 March 2018 08:36 PM, kbuild test robot wrote:
> Hi Michael,
> I love your patch! Yet something to improve:
> [auto build test ERROR on v4.16-rc1]
> [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/Madhavan-Srinivasan/powerpc-perf-Fix-kernel-address-leaks-via-Sampling-registers/20180306-041036
> config: powerpc-pmac32_defconfig (attached as .config)
> compiler: powerpc-linux-gnu-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
>          # save the attached .config to linux build tree
>          make.cross ARCH=powerpc

My bad should have added the ppmu->flag or config check to avoid this
in 32bit case. Will respin it.


> All errors (new ones prefixed by >>):
>     {standard input}: Assembler messages:
>>> {standard input}:2476: Error: unsupported relocation against SPRN_SDAR
> ---
> 0-DAY kernel test infrastructure                Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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