[Bug 94869] New: [BAT BSW] gem_ctx_param_basic/non-root-set-no-zeromap causes *ERROR* gpu hanging too fast

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Apr 8 10:48:14 UTC 2016


https://bugs.freedesktop.org/show_bug.cgi?id=94869

            Bug ID: 94869
           Summary: [BAT BSW] gem_ctx_param_basic/non-root-set-no-zeromap
                    causes *ERROR* gpu hanging too fast
           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: tim.gore at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

During BAT testing of a patch targeting gen9 only, several tests, of which
gem_ctx_param_basic/non-root-set-no-zeromap is one, cause "*ERROR* gpu hanging
too fast" in dmesg log on the bsw-nuc2 target, although the test reports
success.
This has also been seen in CI_DRM_1199 and CI_DRM_1175. Maybe related to bug
89633.

Patch being tested is https://patchwork.freedesktop.org/series/5367/
This introduces a workaround in gen9_init_workarounds, which is also
conditional on
 (IS_SKL_REVID(dev, SKL_REVID_C0, REVID_FOREVER) || IS_BROXTON(dev))
So this patch should not be able to affect a BSW target.

Regression build. CI_DRM_1200

================================================================
Stdout    
IGT-Version: 1.14-gfd7fef6 (x86_64) (Linux: 4.6.0-rc2-gfxbench+ x86_64)
Subtest non-root-set-no-zeromap: SUCCESS (0.012s)
Stderr    
Environment    
PIGLIT_SOURCE_DIR="/opt/igt/piglit" PIGLIT_PLATFORM="mixed_glx_egl"
Command    /opt/igt/tests/gem_ctx_param_basic --run-subtest
non-root-set-no-zeromap
dmesg    
[  577.819668] [drm:i915_set_reset_status [i915]] *ERROR* gpu hanging too fast,
banning!
[  577.824606] drm/i915: Resetting chip after gpu hang
[  583.813212] [drm:i915_set_reset_status [i915]] *ERROR* gpu hanging too fast,
banning!
[  583.817731] drm/i915: Resetting chip after gpu hang

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