[Bug 107435] New: [CI][BAT] Value[0/2] mismatch, (overwrite with wc) wrote [gtt] 7b87261d read [cpu] 8478d9e2

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107435

            Bug ID: 107435
           Summary: [CI][BAT] Value[0/2] mismatch, (overwrite with wc)
                    wrote [gtt] 7b87261d read [cpu] 8478d9e2
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: tomi.p.sarvela at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_4595/fi-icl-u/igt@drv_selftest@live_coherency.html

dmesg:
[  599.128689] Setting dangerous option live_selftests - tainting kernel
[  599.149396] [drm] GuC: No firmware known for this platform!
[  599.149414] [drm] HuC: No firmware known for this platform!
[  599.595697] Value[0/2] mismatch, (overwrite with wc) wrote [gtt] 7b87261d
read [cpu] 8478d9e2 (inverse 8478d9e2), at offset 910
[  599.595745] i915/i915_gem_coherency_live_selftests: igt_gem_coherency failed
with error -22
[  599.718156] i915: probe of 0000:00:02.0 failed with error -22

err:
(drv_selftest:9164) igt_kmod-CRITICAL: Test assertion failure function
igt_kselftest_execute, file ../lib/igt_kmod.c:520:
(drv_selftest:9164) igt_kmod-CRITICAL: Failed assertion: err == 0
(drv_selftest:9164) igt_kmod-CRITICAL: kselftest "i915
igt__18__live_coherency=1 live_selftests=-1 disable_display=1" failed: Invalid
argument [22]
(drv_selftest:9164) igt_core-INFO: Stack trace:
(drv_selftest:9164) igt_core-INFO:   #0 [__igt_fail_assert+0x180]
(drv_selftest:9164) igt_core-INFO:   #1 [igt_kselftest_execute+0x1d9]
(drv_selftest:9164) igt_core-INFO:   #2 [igt_kselftests+0x18c]
(drv_selftest:9164) igt_core-INFO:   #3 [__real_main29+0x44]
(drv_selftest:9164) igt_core-INFO:   #4 [main+0x44]
(drv_selftest:9164) igt_core-INFO:   #5 [__libc_start_main+0xe7]
(drv_selftest:9164) igt_core-INFO:   #6 [_start+0x2a]

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