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            <b><a class="bz_bug_link 
          bz_status_NEEDINFO "
   title="NEEDINFO - [BDW][EXT] igt@kms_fbcon_fbt@fbc-suspend cause the following kms_flip tests to fail on consecutive runs"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=100770#c6">Comment # 6</a>
              on <a class="bz_bug_link 
          bz_status_NEEDINFO "
   title="NEEDINFO - [BDW][EXT] igt@kms_fbcon_fbt@fbc-suspend cause the following kms_flip tests to fail on consecutive runs"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=100770">bug 100770</a>
              from <span class="vcard"><a class="email" href="mailto:marta.lofstedt@intel.com" title="Marta Löfstedt <marta.lofstedt@intel.com>"> <span class="fn">Marta Löfstedt</span></a>
</span></b>
        <pre>I have seen a similar sequence of issues going on with the pm_rpm tests.

i.e.
pm_runtime_get_sync() failed: -13
WARNING: CPU: 2 PID: 2308 at drivers/gpu/drm/i915/intel_drv.h:1755
intel_runtime_pm_get+0x9a/0xd0 [i915]
WARNING: CPU: 2 PID: 2308 at drivers/gpu/drm/i915/intel_drv.h:1755
gen6_read32+0x153/0x1d0 [i915]
WARNING: CPU: 3 PID: 208 at drivers/gpu/drm/i915/intel_display.c:8623
hsw_enable_pc8+0x6be/0x710 [i915]

and then the hsw_enable_pc8 WARN spams for a very long time after this
happended.

The issue is reproducible by spinning:
igt@pm_rpm@debugfs-read
igt@pm_rpm@i2c
igt@pm_rpm@pc8-residency
igt@pm_rpm@sysfs-read
igt@pm_rpm@system-suspend
igt@pm_rpm@system-suspend-execbuf
igt@pm_rpm@system-suspend-modeset
igt@pm_rpm@universal-planes

And it is also, not reproducible if I apply Imres patch.</pre>
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