[Bug 80126] [HSW Regression]igt/kms_pipe_crc_basic causes "WARNING: CPU: 3 PID: 4309 at drivers/gpu/drm/i915/intel_pm.c:6174 check_power_well_state+0x69/0x6f [i915]()" sporadically

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=80126

--- Comment #4 from yaoming <ming.yao at intel.com> ---
(In reply to comment #3)
> (In reply to comment #2)
> > This bug unable to reproduce on latest
> > -nightly(ddbc288690cd888dd6f5629ccba9a2691a70b7b0)
> 
> comment #0 says "The fail rate about 1 out of 3." - I presume you tried
> multiple times. Resolving as fixed, please reopen if the problem persists.

I tested 6 times on latest
drm-intel-nightly(4a3d32734bdcef6813b31f06a58430436e98711e), all passed.

[root at x-hsw27 tests]# ./kms_pipe_crc_basic --run-subtest
suspend-read-crc-pipe-A
IGT-Version: 1.7-ga16ebcc (x86_64) (Linux:
3.17.0-rc4_drm-intel-nightly_4a3d32_20140909+ x86_64)
rtcwake: wakeup from "mem" using /dev/rtc0 at Tue Sep  9 07:01:29 2014
suspend-read-crc-pipe-A: Testing connector VGA-1 using pipe A
Subtest suspend-read-crc-pipe-A: SUCCESS
[root at x-hsw27 tests]# dmesg -r|egrep "<[1-4]>"|grep drm                        
[root at x-hsw27 tests]#
[root at x-hsw27 tests]# uname -a
Linux x-hsw27 3.17.0-rc4_drm-intel-nightly_4a3d32_20140909+ #2276 SMP Tue Sep 9
11:32:56 CST 2014 x86_64 x86_64 x86_64 GNU/Linux

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