(05:38 PM) [gfx@CFL-S-2] [tests]$ : sudo -E ./gem_render_tiled_blits --r swap-thrash --d
IGT-Version: 1.19-g08a2f88 (x86_64) (Linux: 4.14.0-rc3-drm-tip-ww40-commit-79f8205+ x86_64)
(gem_render_tiled_blits:2151) drmtest-DEBUG: Test requirement passed: !(fd<0)
(gem_render_tiled_blits:2151) igt-debugfs-DEBUG: Opening debugfs directory '/sys/kernel/debug/dri/0'
(gem_render_tiled_blits:2151) drmtest-DEBUG: Test requirement passed: is_i915_device(fd) && has_known_intel_chipset(fd)
(gem_render_tiled_blits:2151) ioctl-wrappers-DEBUG: Test requirement passed: err == 0
(gem_render_tiled_blits:2151) igt-core-DEBUG: Test requirement passed: !igt_run_in_simulation()
(gem_render_tiled_blits:2151) igt-core-DEBUG: Starting subtest: swap-thrash
(gem_render_tiled_blits:2151) DEBUG: Test requirement passed: swap_mb > 0
(gem_render_tiled_blits:2151) drmtest-DEBUG: Test requirement passed: !(fd<0)
(gem_render_tiled_blits:2151) igt-debugfs-DEBUG: Opening debugfs directory '/sys/kernel/debug/dri/0'
(gem_render_tiled_blits:2151) intel-os-DEBUG: Checking 23,762 surfaces of size 1,048,576 bytes (total 24,928,432,128) against RAM + swap
(gem_render_tiled_blits:2151) drmtest-DEBUG: Test requirement passed: !(fd<0)
(gem_render_tiled_blits:2151) igt-debugfs-DEBUG: Opening debugfs directory '/sys/kernel/debug/dri/0'
(gem_render_tiled_blits:2151) intel-os-DEBUG: Test requirement passed: __intel_check_memory(count, size, mode, &required, &total)
(gem_render_tiled_blits:2151) igt-core-DEBUG: Test requirement passed: !igt_run_in_simulation()
(gem_render_tiled_blits:2151) DEBUG: Test requirement passed: render_copy
(gem_render_tiled_blits:2151) ioctl-wrappers-DEBUG: Test requirement passed: __gem_set_caching(fd, handle, caching) == 0
Using a snoop linear buffer for comparisons
Verifying initialisation...