Bug 111753

Summary: [CI][BAT] igt@i915_selftest@live_gtt - dmesg-fail - igt_cs_tlb failed with error -22
Product: DRI Reporter: Lakshmi <lakshminarayana.vudum>
Component: DRM/IntelAssignee: Intel GFX Bugs mailing list <intel-gfx-bugs>
Status: CLOSED FIXED QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: not set    
Priority: not set CC: intel-gfx-bugs
Version: DRI git   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: TGL i915 features: GEM/Other

Description Lakshmi 2019-09-20 07:40:06 UTC 
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6921/fi-tgl-u/igt@i915_selftest@live_gtt.html

(i915_selftest:4191) igt_kmod-WARNING: igt_cs_tlb failed with error -22
(i915_selftest:4191) igt_kmod-WARNING: ntel_power_well_enable [i915]] enabling always-on
(i915_selftest:4191) igt_kmod-WARNING: ntel_power_well_enable [i915]] enabling DC off
(i915_selftest:4191) igt_kmod-WARNING: en9_set_dc_state [i915]] Setting DC state from 02 to 00
(i915_selftest:4191) igt_kmod-WARNING: ntel_combo_phy_init [i915]] Combo PHY A already enabled, won't reprogram it.
(i915_selftest:4191) igt_kmod-WARNING: ntel_combo_phy_init [i915]] Combo PHY B already enabled, won't reprogram it.
(i915_selftest:4191) igt_kmod-WARNING: ntel_power_well_enable [i915]] enabling power well 2
(i915_selftest:4191) igt_kmod-WARNING: ntel_power_well_enable [i915]] enabling power well 3
(i915_selftest:4191) igt_kmod-WARNING: ntel_power_well_enable [i915]] enabling power well 4
(i915_selftest:4191) igt_kmod-WARNING: ntel_power_well_enable [i915]] enabling power well 5
(i915_selftest:4191) igt_kmod-WARNING: probe of 0000:00:02.0 failed with error -22
(i915_selftest:4191) igt_kmod-CRITICAL: Test assertion failure function igt_kselftest_execute, file ../lib/igt_kmod.c:532:
(i915_selftest:4191) igt_kmod-CRITICAL: Failed assertion: err == 0
(i915_selftest:4191) igt_kmod-CRITICAL: kselftest "i915 igt__25__live_gtt=1 live_selftests=-1 disable_display=1 st_filter=" failed: Invalid argument [22]
(i915_selftest:4191) igt_core-INFO: Stack trace:
(i915_selftest:4191) igt_core-INFO:   #0 ../lib/igt_core.c:1696 __igt_fail_assert()
(i915_selftest:4191) igt_core-INFO:   #1 ../lib/igt_kmod.c:535 igt_kselftest_execute()
(i915_selftest:4191) igt_core-INFO:   #2 [main+0x30]
(i915_selftest:4191) igt_core-INFO:   #3 [<unknown>+0xfe2b5100]
****  END  ****
Subtest live_gtt: FAIL (15.143s)
Dmesg-Warnings	
<3> [537.622691] i915/i915_gem_gtt_live_selftests: igt_cs_tlb failed with error -22
Comment 1 CI Bug Log 2019-09-20 07:40:35 UTC 
The CI Bug Log issue associated to this bug has been updated.

### New filters associated

* TGL: igt@i915_selftest@live_gtt - dmesg-fail - igt_cs_tlb failed with error -22
  - https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_5012/fi-tgl-u/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_5012/fi-tgl-u2/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_5013/fi-tgl-u2/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14414/fi-tgl-u/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14414/fi-tgl-u2/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14455/fi-tgl-u/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14455/fi-tgl-u2/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6921/fi-tgl-u/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6921/fi-tgl-u2/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6922/fi-tgl-u/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6922/fi-tgl-u2/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14457/fi-tgl-u/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14457/fi-tgl-u2/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14458/fi-tgl-u/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14458/fi-tgl-u2/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6923/fi-tgl-u/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6923/fi-tgl-u2/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14459/fi-tgl-u/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14459/fi-tgl-u2/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6924/fi-tgl-u/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6924/fi-tgl-u2/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6925/fi-tgl-u/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6925/fi-tgl-u2/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14460/fi-tgl-u/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14460/fi-tgl-u2/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14463/fi-tgl-u/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14463/fi-tgl-u2/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14464/fi-tgl-u/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14464/fi-tgl-u2/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14465/fi-tgl-u/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14466/fi-tgl-u/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14466/fi-tgl-u2/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_5043/fi-tgl-u/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_5045/fi-tgl-u/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_5045/fi-tgl-u2/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_3481/fi-tgl-u/igt@i915_selftest@live_gtt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_3481/fi-tgl-u2/igt@i915_selftest@live_gtt.html
Comment 2 Chris Wilson 2019-09-20 09:23:14 UTC 
commit c45e788d95b470e9f68fabe1f3cb44beb5dd7840 (HEAD -> drm-intel-next-queued, drm-intel/drm-intel-next-queued)
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Thu Sep 19 16:18:11 2019 +0100

    drm/i915/tgl: Suspend pre-parser across GTT invalidations
    
    Before we execute a batch, we must first issue any and all TLB
    invalidations so that batch picks up the new page table entries.
    Tigerlake's preparser is weakening our post-sync CS_STALL inside the
    invalidate pipe-control and allowing the loading of the batch buffer
    before we have setup its page table (and so it loads the wrong page and
    executes indefinitely).
    
    The igt_cs_tlb indicates that this issue can only be observed on rcs,
    even though the preparser is common to all engines. Alternatively, we
    could do TLB shootdown via mmio on updating the GTT.
    
    By inserting the pre-parser disable inside EMIT_INVALIDATE, we will also
    accidentally fixup execution that writes into subsequent batches, such
    as gem_exec_whisper and even relocations performed on the GPU. We should
    be careful not to allow this disable to become baked into the uABI! The
    issue is that if userspace relies on our disabling of the HW
    optimisation, when we are ready to enable that optimisation, userspace
    will then be broken...
    
    Testcase: igt/i915_selftests/live_gtt/igt_cs_tlb
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111753
    Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
    Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
    Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
    Acked-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
    Link: https://patchwork.freedesktop.org/patch/msgid/20190919151811.9526-1-chris@chris-wilson.co.uk
Comment 3 Chris Wilson 2019-09-20 16:43:13 UTC 
*** Bug 111739 has been marked as a duplicate of this bug. ***
Comment 4 ashutosh.dixit 2019-09-28 04:12:17 UTC 
This issue was 100% reproducible till CI_DRM_6925 (8 days old). No new occurrence since, closing and archiving the bug.
Comment 5 CI Bug Log 2019-09-28 04:13:00 UTC 
The CI Bug Log issue associated to this bug has been archived.

New failures matching the above filters will not be associated to this bug anymore.

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