Created attachment 144098 [details]
output from crucible test when gpu hang occurs

The following crucible tests cause GPU hangs on ICL:


func.miptree.r8g8b8a8-unorm.aspect-color.view-2d.levels02.array02.extent-512x512.upload-copy-with-draw.download-copy-with-draw.q0
func.miptree.r8g8b8a8-unorm.aspect-color.view-2d.levels02.array02.extent-512x512.upload-copy-with-draw.download-copy-to-linear-image.q0
func.miptree.r8g8b8a8-unorm.aspect-color.view-2d.levels02.array02.extent-512x512.upload-copy-with-draw.download-copy-to-buffer.q0
func.miptree.r8g8b8a8-unorm.aspect-color.view-2d.levels02.array01.extent-512x512.upload-copy-with-draw.download-copy-to-buffer.q0
func.miptree.r8g8b8a8-unorm.aspect-color.view-2d.levels01.array01.extent-512x512.upload-copy-with-draw.download-copy-with-draw.q0
func.miptree.r8g8b8a8-unorm.aspect-color.view-2d.levels01.array01.extent-512x512.upload-copy-with-draw.download-copy-to-linear-image.q0
func.miptree.r8g8b8a8-unorm.aspect-color.view-2d.levels01.array01.extent-512x512.upload-copy-with-draw.download-copy-to-buffer.q0


Test output is attached.

This has been bisected to the following commit:

commit 0d46e404677264bfb12ada15290e39c10a5eb455
Author: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Date:   Wed Mar 6 11:42:14 2019 +0000

    anv: limit URB reconfigurations when using blorp

    If the last graphics pipeline bound to the command buffer has enough
    space in its VS URB entries for Blorp then avoid reconfiguring the URB
    partitions.

    v2: s/0/MESA_SHADER_VERTEX/ (Caio)

    Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
    Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>