On Fri, Nov 08, 2019 at 12:50:44PM +0800, kbuild test robot wrote:
> tree:   git://git.infradead.org/users/willy/linux-dax.git xarray
> head:   498b1f3c48d9d74d7c2902d9d97a7612a5af869c
> commit: 5a74ac4c4a97bd8b7dba054304d598e2a882fea6 [2/6] idr: Fix idr_get_next_ul race with idr_remove
> config: arc-defconfig (attached as .config)
> compiler: arc-elf-gcc (GCC) 7.4.0
> reproduce:
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         git checkout 5a74ac4c4a97bd8b7dba054304d598e2a882fea6
>         # save the attached .config to linux build tree
>         GCC_VERSION=7.4.0 make.cross ARCH=arc 

That doesn't work:

$ GCC_VERSION=7.4.0 make.cross ARCH=arc O=.build-arc
cd: received redirection to `https://download.01.org/0day-ci/cross-package/'
lftpget -c https://download.01.org/0day-ci/cross-package/./gcc-7.4.0-nolibc/x86_64-gcc-7.4.0-nolibc_sparc-linux.tar.xz
tar Jxf gcc-7.4.0-nolibc/x86_64-gcc-7.4.0-nolibc_sparc-linux.tar.xz -C /home/willy/0day
No cross compiler for arc

Why is it downloading sparc binaries instead of arc binaries?