[Bug 99909] New: [KBL] [IGT] drv_missed_irq assertion failure check_rings != expect_rings

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99909

            Bug ID: 99909
           Summary: [KBL] [IGT] drv_missed_irq assertion failure
                    check_rings != expect_rings
           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: luis.botello.ortega at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org
     i915 platform: KBL
     i915 features: power/Other

HW config
===============================
Processor Number                                i7-7500U
Processor Graphics                              Intel® HD Graphics 620
Graphics Base Frequency                         300.00 MHz
Graphics Max Dynamic Frequency                  1.05 GHz
Graphics Video Max Memory                       32 GB
Graphics Output                                 eDP/DP/HDMI/DVI

SW config
=================================
Kernel version : 4.10.0-rc8-e80b772
commit e80b772bf85da72c46b582e7c4f7b0d861cb4669
    drm-tip: 2017y-02m-14d-22h-44m-17s UTC integration manifest
Component         : drm
        tag       : libdrm-2.4.75-6-gec80fd3
        commit    : ec80fd3
 Component         : cairo
        tag       : 1.15.4-6-g5854dd9
        commit    : 5854dd9
Component         : intel-gpu-tools
        tag       : intel-gpu-tools-1.17-240-gca2ba47
        commit    : ca2ba47

Steps
====================================
./kms_busy --run-subtest extended-modeset-hang-newfb-blt-a

Program output
=====================================
(drv_missed_irq:1523) CRITICAL: Test assertion failure function __real_main115,
file drv_missed_irq.c:178:
(drv_missed_irq:1523) CRITICAL: Failed assertion: check_rings == expect_rings
(drv_missed_irq:1523) CRITICAL: error: 0 != 0x17
Stack trace:
  #0 [__igt_fail_assert+0x101]
  #1 [main+0x38e]
  #2 [__libc_csu_init+0x0]
Test drv_missed_irq failed.
**** DEBUG ****
(drv_missed_irq:1523) igt-core-DEBUG: Test requirement passed:
!igt_run_in_simulation()
(drv_missed_irq:1523) drmtest-DEBUG: Test requirement passed: !(fd<0)
(drv_missed_irq:1523) DEBUG: Test requirement passed: gem_mmap__has_wc(fd)
(drv_missed_irq:1523) DEBUG: Clearing rings 17
(drv_missed_irq:1523) DEBUG: Clearing ring render [1]
(drv_missed_irq:1523) DEBUG: Clearing ring bsd [2]
(drv_missed_irq:1523) DEBUG: Clearing ring bsd1 [2002]
(drv_missed_irq:1523) DEBUG: Clearing ring bsd2 [4002]
(drv_missed_irq:1523) DEBUG: Clearing ring blt [3]
(drv_missed_irq:1523) DEBUG: Clearing ring vebox [4]
(drv_missed_irq:1523) DEBUG: Testing rings 17
(drv_missed_irq:1523) DEBUG: Executing on ring render [1]
(drv_missed_irq:1523) DEBUG: Executing on ring bsd [2]
(drv_missed_irq:1523) DEBUG: Executing on ring bsd1 [2002]
(drv_missed_irq:1523) DEBUG: Executing on ring bsd2 [4002]
(drv_missed_irq:1523) DEBUG: Executing on ring blt [3]
(drv_missed_irq:1523) DEBUG: Executing on ring vebox [4]
(drv_missed_irq:1523) CRITICAL: Test assertion failure function __real_main115,
file drv_missed_irq.c:178:
(drv_missed_irq:1523) CRITICAL: Failed assertion: check_rings == expect_rings
(drv_missed_irq:1523) CRITICAL: error: 0 != 0x17
****  END  ****
FAIL (12.334s)

dmesg
=============================================
[   74.580070] Console: switching to colour dummy device 80x25
[   74.580172] [IGT] drv_missed_irq: executing
[   74.580806] [drm:intel_ring_workarounds_emit [i915]] Number of Workarounds
emitted: 17
[   74.617781] [drm:i915_ring_test_irq_set [i915]] Masking interrupts on rings
0x00000017
[   74.617881] [drm:i915_ring_test_irq_set [i915]] Masking interrupts on rings
0x00000000
[   86.914017] [IGT] drv_missed_irq: exiting, ret=99
[   86.914756] [drm:intel_ring_workarounds_emit [i915]] Number of Workarounds
emitted: 17
[   86.977398] Console: switching to colour frame buffer device 240x67

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