[Bug 92503] New: [IGT] pm_rpm subtests gem-execbuf-stress-pc8 / modeset-non-lpsp-stress-no-wait Fail

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92503

            Bug ID: 92503
           Summary: [IGT] pm_rpm subtests gem-execbuf-stress-pc8 /
                    modeset-non-lpsp-stress-no-wait Fail
           Product: DRI
           Version: unspecified
          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: jairo.daniel.miramontes.caton at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 118930
  --> https://bugs.freedesktop.org/attachment.cgi?id=118930&action=edit
dmesg log for execbuf and pc8 residency

IGT fails when running the following tests on the below configuration.
<%pm_rpm at gem-execbuf-stress-pc8%>
<%pm_rpm at pc8-residency%>

Hardware:
````````````````````````````````````
Motherboard: Lenovo G50-80
CPU: Intel(R) Core(TM) i5-5200U CPU @ 2.20GHz

Software:
````````````````````````````````````
BIOS: 1.69
Distribution: Ubuntu 14.04.3 LTS


Test Environment:
````````````````````````````````````
Kernel:4.3.0-rc4 drm-intel-testing-2015-10-10
Mesa: mesa-11.0.2 
Xf86_video_intel: 2.99.917 
Libdrm: libdrm-2.4.65
Cairo: 1.14.2 
libva: libva-1.6.1 
intel-driver: 1.6.1
xorg: 1.17.99 installed with script git_xorg.sh
Xserver: xorg-server-1.17.2 
Intel-gpu-tools: 1.12


Steps to reproduce:
  1. Install intel graphic stack with mentioned configuration
  2. Install igt
  3. Execute ./pm_rpm --run-subtest gem-execbuf-stress-pc8
  4. Execute ./pm_rpm --run-subtest pc8-residency

Expected result:  test should be marked as "SUCCESS"

Actual result: (stack trace)
-----------------------------------------------------------------
Test assertion failure function gem_execbuf_stress_subtest, file pm_rpm.c:1303:
Failed assertion: pc8_plus_residency_changed(120)
Stack trace:
  #0 [__igt_fail_assert+0xf1]
  #1 [gem_execbuf_stress_subtest+0x209]
  #2 [main+0x16d9]
  #3 [__libc_start_main+0xf5]
  #4 [_start+0x29]
  #5 [<unknown>+0x29]
Subtest gem-execbuf-stress-pc8 failed.
**** DEBUG ****
Test requirement passed: has_pc8
Test assertion failure function gem_execbuf_stress_subtest, file       
pm_rpm.c:1303:
  Failed assertion: pc8_plus_residency_changed(120)
  ****  END  ****
  Subtest gem-execbuf-stress-pc8: FAIL (121.353s)
--------------------------------------------------------------

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