On Tue, May 26, 2015 at 4:22 PM, Andrey Ryabinin [off-list ref] wrote:

On 05/26/2015 05:12 PM, Andrey Ryabinin wrote:

quoted

On 05/26/2015 04:35 PM, Linus Walleij wrote:

quoted

I wonder were the problem lies, any hints where to start looking
to fix this?

I suspect that your compiler lack -fsantize=kernel-address support.
It seems that GCC 4.9.2 doesn't supports -fsanitize=address/kernel-address on aarch64.

In that case you should get something like this, during kernel build:
        scripts/Makefile.kasan:17: Cannot use CONFIG_KASAN: -fsanitize=kernel-address is not supported by compiler

Aha yep that's it when I look closer...

I'm going back and rebuilding my compiler. May as well do a trunk
5.0 build and try to get KASAN_INLINE working while I'm at it.

Yours,
Linus Walleij