[Bug 96606] New: [IGT] [BXT-P] gem_exec_nop / basic sporadically fail

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96606

            Bug ID: 96606
           Summary: [IGT] [BXT-P] gem_exec_nop / basic sporadically fail
           Product: DRI
           Version: XOrg 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: humberto.i.perez.rodriguez at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 124629
  --> https://bugs.freedesktop.org/attachment.cgi?id=124629&action=edit
dmesg.log

Regresion
===========================================
no
Bug description
===========================================
gem_exec_nop / basic fails sporadically

Steps to reproduce
===========================================
./gem_exec_nop --run-subtest basic --debug


Actual results
===========================================
test fail sporadically


Expected results
===========================================
test should pass


attachments
===========================================
dmesg.log


test output
===========================================
IGT-Version: 1.15-gc344044 (x86_64) (Linux:
4.7.0-rc4-drm-intel-nightly-ww26-commit-f586720+ x86_64)
(gem_exec_nop:4017) drmtest-DEBUG: Test requirement passed: fd >= 0
(gem_exec_nop:4017) igt-core-DEBUG: Starting subtest: basic
(gem_exec_nop:4017) DEBUG: Test requirement passed: nengine
Maximum execution latency on render, 55.486us, total 73.134us per cycle
All (4 engines): 364,544 cycles, average 27.624us per cycle
Subtest basic: SUCCESS (14.123s)
(gem_exec_nop:4017) igt-core-DEBUG: Exiting with status code 0



IGT-Version: 1.15-gc344044 (x86_64) (Linux:
4.7.0-rc4-drm-intel-nightly-ww26-commit-f586720+ x86_64)
(gem_exec_nop:4022) drmtest-DEBUG: Test requirement passed: fd >= 0
(gem_exec_nop:4022) igt-core-DEBUG: Starting subtest: basic
(gem_exec_nop:4022) DEBUG: Test requirement passed: nengine
Maximum execution latency on render, 5.633us, total 14.183us per cycle
All (4 engines): 655,360 cycles, average 15.280us per cycle
(gem_exec_nop:4022) CRITICAL: Test assertion failure function all, file
gem_exec_nop.c:196:
(gem_exec_nop:4022) CRITICAL: Failed assertion: time < max + 10*min/9
(gem_exec_nop:4022) CRITICAL: Average time (15.280us) exceeds expecation for
parallel execution (min 2.825us, max 5.633us; limit set at 8.772us)
Stack trace:
  #0 [__igt_fail_assert+0x101]
  #1 [all+0x43d]
  #2 [__real_main199+0x2a4]
  #3 [main+0x23]
  #4 [__libc_start_main+0xf0]
  #5 [_start+0x29]
  #6 [<unknown>+0x29]
Subtest basic failed.
**** DEBUG ****
(gem_exec_nop:4022) DEBUG: Test requirement passed: nengine
(gem_exec_nop:4022) INFO: Maximum execution latency on render, 5.633us, total
14.183us per cycle
(gem_exec_nop:4022) INFO: All (4 engines): 655,360 cycles, average 15.280us per
cycle
(gem_exec_nop:4022) CRITICAL: Test assertion failure function all, file
gem_exec_nop.c:196:
(gem_exec_nop:4022) CRITICAL: Failed assertion: time < max + 10*min/9
(gem_exec_nop:4022) CRITICAL: Average time (15.280us) exceeds expecation for
parallel execution (min 2.825us, max 5.633us; limit set at 8.772us)
****  END  ****
Subtest basic: FAIL (14.033s)
(gem_exec_nop:4022) igt-core-DEBUG: Exiting with status code 99


 Software information
============================================
Kernel version                  :
4.7.0-rc4-drm-intel-nightly-ww26-commit-f586720+
Linux distribution              : Ubuntu 16.04 LTS
Architecture                    : 64-bit
Bios revision                   : 138.25
KSC revision                    : 1.12


 --> Component : drm 
         url : http://cgit.freedesktop.org/mesa/drm 
         tag : libdrm-2.4.68 
         commit : fc09c5a 
 --> Component : cairo 
         url : http://cgit.freedesktop.org/cairo 
         tag : 1.15.2 
         commit : db8a7f1 
 --> Component : intel-gpu-tools 
         url : http://cgit.freedesktop.org/xorg/app/intel-gpu-tools 
         tag : intel-gpu-tools-1.15-29-gc344044 
         commit : c344044 


 Hardware information
============================================
Platform                        : BXT-P
Motherboard model               : Broxton P
Motherboard type                : NOTEBOOK Hand Held
Motherboard manufacturer        : Intel Corp.
CPU family                      : B1
CPU information                 : 06/5c
GPU Card                        : Intel Corporation Device 5a84 (rev 0a)
(prog-if 00 [VGA controller])
Memory ram                      : 16 GB

 Firmwares information
============================================
DMC fw loaded                   : yes
DMC version                     : 1.7
GUC fw loaded                   : SUCCESS
GUC version wanted              : 8.7
GUC version found               : 8.7


kernel
============================================
commit f586720edd865745aaca6f612615ef14c77e6091
Author: Daniel Vetter <daniel.vetter at ffwll.ch>
Date:   Mon Jun 20 15:25:16 2016 +0200

    drm-intel-nightly: 2016y-06m-20d-13h-24m-46s UTC integration manifest

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