Re: [tip:locking/kcsan 12/12] /bin/bash: line 1: 61526 Segmentation fault sparse ...

[Borislav Petkov]

On Thu, May 28, 2020 at 07:39:31AM +0800, kbuild test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git locking/kcsan
> head:   a5dead405f6be1fb80555bdcb77c406bf133fdc8
> commit: a5dead405f6be1fb80555bdcb77c406bf133fdc8 [12/12] compiler_types.h: Optimize __unqual_scalar_typeof compilation time
> config: i386-randconfig-s002-20200527 (attached as .config)
> compiler: gcc-9 (Debian 9.3.0-13) 9.3.0
> reproduce:
>         # apt-get install sparse
>         # sparse version: v0.6.1-240-gf0fe1cd9-dirty
>         git checkout a5dead405f6be1fb80555bdcb77c406bf133fdc8
>         # save the attached .config to linux build tree
>         make W=1 C=1 ARCH=i386 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kbuild test robot <lkp@xxxxxxxxx>
> 
> All errors (new ones prefixed by >>, old ones prefixed by <<):

I'll say.

Looking at the subject, that broke the 0day bot too. :-)

/me trims it.

Looks like we need __CHECKER__ ifdeffery somewhere but it is too late
for me to think straight so tomorrow...

-- 
Regards/Gruss,
    Boris.

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