new KASAN running piglit

[Tom St Denis]

Hi Christian,

This patch:

[root at raven linux]# git bisect bad
90f362bdf0d0d06a126a5fd35b084436dd8250ad is the first bad commit
commit 90f362bdf0d0d06a126a5fd35b084436dd8250ad
Author: Christian König <christian.koenig at amd.com>
Date:   Mon Jul 16 14:58:48 2018 +0200

     drm/amdgpu: change ring priority after pushing the job

     Pushing a job can change the ring assignment of an entity.

     Signed-off-by: Christian König <christian.koenig at amd.com>
     Reviewed-by: Chunming Zhou <david1.zhou at amd.com>

:040000 040000 9a09d3e9d055e4f5024019861c334ee9cc0bd11b 
522540c31c3d1a4f4a6fbac75e985e9a7f7e93c9 M      drivers

causes a KASAN while running piglit.  It's reproduceable 100% of the 
time.  The commit before this doesn't not cause a KASAN.

Tom