[Bug 89100] [SKL]kms_universal_plane causes system hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89100

lu hua <huax.lu at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |NEW

--- Comment #2 from lu hua <huax.lu at intel.com> ---
(In reply to Jesse Barnes from comment #1)
> Can you try an older kernel and see if it is a regression?  If so, can you
> bisect?

Test older kernel,system also hang
test commit:
drm-intel-nightly/ea4bec8e96ea8b33b49a7892c1c7f20041a56da6(drm-intel-nightly:
2014y-10m-09d-07h-58m-45s), ctrl+c, it doesn't exit testing, run reboot,system
is no response, 
output:
IGT-Version: 1.9-g9846e7f (x86_64) (Linux:
3.17.0_drm-intel-nightly_ea4bec_20141010+ x86_64)

^C^C^C^C^C^C^C^C^C^C

Test commit: 07d0c831d9207c937595f081c8fddbddbf53756f(drm-intel-nightly:
2014y-12m-30d-13h-01m-34s), system also hang.
output:
IGT-Version: 1.9-g9846e7f (x86_64) (Linux:
3.19.0-rc2_drm-intel-nightly_07d0c8_20150104+ x86_64)
Testing connector eDP-1 using pipe A
(kms_universal_plane:5213) CRITICAL: Test assertion failure function
functional_test_pipe, file kms_universal_plane.c:270:
(kms_universal_plane:5213) CRITICAL: Failed assertion:
igt_crc_equal(&test.crc_1, &test.crc_5)
Subtest universal-plane-pipe-A-functional: FAIL (2.434s)
Subtest universal-plane-pipe-A-sanity: SUCCESS (1.120s)

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