[iris][bisected] piglit test ...ext_external_objects.vk-image-display-muliple-textures failing after enabled
Issue began on all iris-enabled platforms with piglit=60a0ff6376 (the commit that enabled this test)
stderr shows a simple assertion failure:
MESA-INTEL: warning: Performance support disabled, consider sysctl dev.i915.perf_stream_paranoid=0
ext_external_objects-vk-image-display-multiple-textures: ../src/gallium/drivers/iris/iris_bufmgr.c:865: iris_bo_unreference: Assertion `p_atomic_read(&bo->refcount) > 0' failed.