[Bug 80376] [SNB/BDW Regression]igt/kms_flip/vblank-vs-modeset-suspend causes "WARNING: CPU: 2 PID: 1051 at drivers/gpu/drm/i915/i915_irq.c:267 intel_gen6_powersave_work+0xa49/0xf1e [i915]()"

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=80376

--- Comment #7 from Guo Jinxian <jinxianx.guo at intel.com> ---
Created attachment 102731
  --> https://bugs.freedesktop.org/attachment.cgi?id=102731&action=edit
dmesg

(In reply to comment #6)
> Can you still reproduce this with the current drm-intel-nightly tree?
Dmesg fail unable to reproduce on latest nightly, but the test was failed.
Should I report a new bug tho track this?

Output:
root at x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_flip
--run-subtest vblank-vs-modeset-suspend
IGT-Version: 1.7-ge74dd22 (x86_64) (Linux:
3.16.0-rc4_drm-intel-nightly_271bff_20140713+ x86_64)
Using monotonic timestamps
Beginning vblank-vs-modeset-suspend on crtc 7, connector 18
  1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780
.rtcwake: assuming RTC uses UTC ...
rtcwake: wakeup from "mem" using /dev/rtc0 at Sun Jan  7 20:25:07 2001
.rtcwake: assuming RTC uses UTC ...
rtcwake: wakeup from "mem" using /dev/rtc0 at Sun Jan  7 20:25:12 2001

vblank-vs-modeset-suspend on crtc 7, connector 18: PASSED

Beginning vblank-vs-modeset-suspend on crtc 11, connector 18
  1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780
.rtcwake: assuming RTC uses UTC ...
rtcwake: wakeup from "mem" using /dev/rtc0 at Sun Jan  7 20:25:17 2001
.rtcwake: assuming RTC uses UTC ...
rtcwake: wakeup from "mem" using /dev/rtc0 at Sun Jan  7 20:25:23 2001

vblank-vs-modeset-suspend on crtc 11, connector 18: PASSED

Beginning vblank-vs-modeset-suspend on crtc 15, connector 18
  1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780
.rtcwake: assuming RTC uses UTC ...
rtcwake: wakeup from "mem" using /dev/rtc0 at Sun Jan  7 20:25:28 2001
.rtcwake: assuming RTC uses UTC ...
rtcwake: wakeup from "mem" using /dev/rtc0 at Sun Jan  7 20:25:33 2001

vblank-vs-modeset-suspend on crtc 15, connector 18: PASSED

Subtest vblank-vs-modeset-suspend: SUCCESS
Test assertion failure function igt_install_exit_handler, file igt_core.c:1084:
Failed assertion: exit_handler_count < MAX_EXIT_HANDLERS
kms_flip: igt_core.c:655: igt_fail: Assertion `!test_with_subtests ||
in_fixture' failed.
Aborted
root at x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# echo $?
134
root at x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# dmesg|grep Call
root at x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests#

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