<html>
    <head>
      <base href="https://bugs.freedesktop.org/" />
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [BYT Regression]igt/gem_reloc_vs_gpu fails"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=85671">85671</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[BYT Regression]igt/gem_reloc_vs_gpu fails
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>DRI
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux (All)
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>high
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>DRM/Intel
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>huax.lu@intel.com
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>==System Environment==
--------------------------
Regression: yes
good commit: 6476486cb3570d3662e4a3870b884e75d35d1072
bad commit: 421d82916774361a4840018fc3ab3a15751c3ea6

Non-working platforms: BYT

==kernel==
--------------------------
drm-intel-nightly/bd21cf795cf5dc278f1451d0f7a597cb1d13c2ba

==Bug detailed description==
It fails on BYT with -queued and -nightly kernel. It also has <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [BYT ppgtt]igt/gem_persistent_relocs/forked-interruptible-faulting-reloc-thrashing fails"
   href="show_bug.cgi?id=84859">bug 84859</a>, add
i915.enable_ppgtt=1, it still fails.

output:
IGT-Version: 1.8-gcba3088 (x86_64) (Linux:
3.18.0-rc2_drm-intel-nightly_bd21cf_20141030+ x86_64)
Test assertion failure function do_test, file gem_reloc_vs_gpu.c:221:
Failed assertion: test == 0xdeadbeef
mismatch in buffer 1: 0x00000000 instead of 0xdeadbeef
Subtest faulting-reloc: FAIL (0.481s)

dmesg:
[  243.292762] gem_reloc_vs_gpu: executing
[  243.304659] [drm:i915_gem_open]
[  243.305204] [drm:i915_gem_open]
[  243.305439] gem_reloc_vs_gpu: starting subtest faulting-reloc
[  243.438118] [drm:valleyview_set_rps] GPU freq request from 646 MHz (214) to
667 MHz (215)
[  243.521711] [drm:valleyview_set_rps] GPU freq request from 667 MHz (215) to
646 MHz (214)
[  243.607257] [drm:valleyview_set_rps] GPU freq request from 646 MHz (214) to
667 MHz (215)
[  243.692318] [drm:valleyview_set_rps] GPU freq request from 667 MHz (215) to
708 MHz (217)
[  243.776392] [drm:valleyview_set_rps] GPU freq request from 708 MHz (217) to
791 MHz (221)
[  243.861469] [drm:valleyview_set_rps] GPU freq request from 791 MHz (221) to
854 MHz (224)
[  249.935839] [drm] stuck on blitter ring
[  249.942053] [drm] GPU HANG: ecode 2:0x21524118, in gem_reloc_vs_gp [4378],
reason: Ring hung, action: reset
[  249.942817] [drm:i915_error_work_func] resetting chip
[  249.944414] drm/i915: Resetting chip after gpu hang
[  249.944426] [drm:init_status_page] render ring hws offset: 0x00409000
[  249.946426] [drm:init_status_page] bsd ring hws offset: 0x0042d000
[  249.946608] [drm:init_status_page] blitter ring hws offset: 0x00450000
[  249.946648] [drm:i9xx_update_primary_plane] Writing base 00473000 00000000 0
0 5504
[  249.953595] [drm:intel_crtc_set_config] [CRTC:8] [FB:35] #connectors=1 (x y)
(0 0)
[  249.953606] [drm:intel_set_config_compute_mode_changes] computed changes for
[CRTC:8], mode_changed=0, fb_changed=0
[  249.953611] [drm:intel_modeset_stage_output_state] [CONNECTOR:28:eDP-1] to
[CRTC:8]
[  249.953617] [drm:intel_crtc_set_config] [CRTC:13] [NOFB]
[  249.953621] [drm:intel_set_config_compute_mode_changes] computed changes for
[CRTC:13], mode_changed=0, fb_changed=0
[  249.953625] [drm:intel_modeset_stage_output_state] [CONNECTOR:28:eDP-1] to
[CRTC:8]
[  251.937584] [drm:intel_print_rc6_info] Enabling RC6 states: RC6 on
[  251.939040] [drm:valleyview_enable_rps] GPLL enabled? yes
[  251.939045] [drm:valleyview_enable_rps] GPU status: 0x0000e0d0
[  251.939049] [drm:valleyview_enable_rps] current GPU freq: 854 MHz (224)
[  251.939053] [drm:valleyview_enable_rps] setting GPU freq to 646 MHz (214)
[  251.939057] [drm:valleyview_set_rps] GPU freq request from 854 MHz (224) to
646 MHz (214)

==Reproduce steps==
---------------------------- 
1. ./gem_reloc_vs_gpu --run-subtest faulting-reloc</pre>
        </div>
      </p>
      <hr>
      <span>You are receiving this mail because:</span>
      
      <ul>
          <li>You are the QA Contact for the bug.</li>
          <li>You are on the CC list for the bug.</li>
          <li>You are the assignee for the bug.</li>
      </ul>
    </body>
</html>