Ever since we swapped fi-ctg-l9400 for another one (https://bugs.freedesktop.org/show_bug.cgi?id=101089), we started randomly hitting an assert when running igt@gem_mmap_gtt@basic-small-bo-tiledx: (gem_mmap_gtt:3095) CRITICAL: Test assertion failure function test_huge_bo, file gem_mmap_gtt.c:518: (gem_mmap_gtt:3095) CRITICAL: Failed assertion: memcmp(ptr , linear_pattern, PAGE_SIZE) == 0 Subtest basic-small-bo-tiledX failed. **** DEBUG **** (gem_mmap_gtt:3095) intel-chipset-DEBUG: Test requirement passed: pci_dev (gem_mmap_gtt:3095) intel-os-DEBUG: Checking 1 surfaces of size 134217728 bytes (total 134221824) against RAM (gem_mmap_gtt:3095) drmtest-DEBUG: Test requirement passed: !(fd<0) (gem_mmap_gtt:3095) igt-debugfs-DEBUG: Opening debugfs directory '/sys/kernel/debug/dri/0' (gem_mmap_gtt:3095) intel-os-DEBUG: Test requirement passed: __intel_check_memory(count, size, mode, &required, &total) (gem_mmap_gtt:3095) igt-core-DEBUG: Test requirement passed: !igt_run_in_simulation() (gem_mmap_gtt:3095) DEBUG: Test requirement passed: __gem_set_tiling(fd, bo, tiling, pitch) == 0 (gem_mmap_gtt:3095) DEBUG: Test requirement passed: __gem_set_tiling(fd, bo, tiling, pitch) == 0 (gem_mmap_gtt:3095) DEBUG: Test requirement passed: ptr (gem_mmap_gtt:3095) CRITICAL: Test assertion failure function test_huge_bo, file gem_mmap_gtt.c:518: (gem_mmap_gtt:3095) CRITICAL: Failed assertion: memcmp(ptr , linear_pattern, PAGE_SIZE) == 0 **** END **** So far, it has happened 4 out of the 5 runs of the new machine. Full logs: https://intel-gfx-ci.01.org/CI/CI_DRM_2671/fi-ctg-l9400/igt@gem_mmap_gtt@basic-small-bo-tiledx.html
updating statistics. Last seen: 2017-05-30 Statistics: Failure rate 2/59 run(s) (3%) Potential drop candidate.
This used to be very reproducable, but not in over a month. Let's call this fixed!
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