[Bug 86365] [PNV/SKL/BYT]igt/kms_pipe_crc_basic some subcases fail

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=86365

--- Comment #30 from yann <yann.argotti at intel.com> ---
(In reply to Jari Tahvanainen from comment #29)
> This failure has not been visible in Patchwork Intel GFX CI Testing during
> August. I propose this to be closed as Resolved + Worksforme. Please comment
> if you disagree.
> 
> The following cases have pass verdict on the 63 latest execution rounds:
> igt at kms_pipe_crc_basic@bad-nb-words-1
> igt at kms_pipe_crc_basic@bad-nb-words-3
> igt at kms_pipe_crc_basic@bad-pipe
> igt at kms_pipe_crc_basic@bad-source
> igt at kms_pipe_crc_basic@hang-read-crc-pipe-a
> igt at kms_pipe_crc_basic@hang-read-crc-pipe-b
> igt at kms_pipe_crc_basic@hang-read-crc-pipe-c
> igt at kms_pipe_crc_basic@nonblocking-crc-pipe-a
> igt at kms_pipe_crc_basic@nonblocking-crc-pipe-a-frame-sequence
> igt at kms_pipe_crc_basic@nonblocking-crc-pipe-b
> igt at kms_pipe_crc_basic@nonblocking-crc-pipe-b-frame-sequence
> igt at kms_pipe_crc_basic@nonblocking-crc-pipe-c
> igt at kms_pipe_crc_basic@nonblocking-crc-pipe-c-frame-sequence
> igt at kms_pipe_crc_basic@read-crc-pipe-a
> igt at kms_pipe_crc_basic@read-crc-pipe-a-frame-sequence
> igt at kms_pipe_crc_basic@read-crc-pipe-b
> igt at kms_pipe_crc_basic@read-crc-pipe-b-frame-sequence
> igt at kms_pipe_crc_basic@read-crc-pipe-c
> igt at kms_pipe_crc_basic@read-crc-pipe-c-frame-sequence
> igt at kms_pipe_crc_basic@suspend-read-crc-pipe-a
> igt at kms_pipe_crc_basic@suspend-read-crc-pipe-b
> igt at kms_pipe_crc_basic@suspend-read-crc-pipe-c
> on fi-bsw-n3050, fi-byt-n2820, fi-hsw-4770k, fi-hsw-4770r, fi-ivb-3520m,
> fi-snb-2520m, fi-snb-2600, fi-bdw-5557u, fi-skl-6260u, fi-skl-6700k.
> On snb there were dmesg related bug filed and fixed (#97491), which was
> recorded during some of these tests.
> 
> On kbl there is one time (not on the "CPU pipe A FIFO underrun" dmesg:
> [  624.807373] [drm:skl_set_cdclk] *ERROR* failed to inform PCU about cdclk
> change
> [  625.572804] [drm:intel_cpu_fifo_underrun_irq_handler] *ERROR* CPU pipe A
> FIFO underrun
> during 
> IGT-Version: 1.15-gdb97b69 (x86_64) (Linux: 4.8.0-rc4-CI-CI_DRM_1603+ x86_64)
> read-crc-pipe-C: Testing connector eDP-1 using pipe C
> Subtest read-crc-pipe-C: SUCCESS (2.663s)
> If this is not covered by any of the current bugs then on shall file new one
> for this particular failure.
> 
Not seen it on KBL but on APL.

> On HSW there is 6 times system hang on the following tests
> igt at kms_pipe_crc_basic@suspend-read-crc-pipe-a
> igt at kms_pipe_crc_basic@suspend-read-crc-pipe-b
> which needs to be followed and another bug needs to be filed if problem
> persist.

I agree with overall comments here. I confirm that most of the tests are
working on QA automated system but we have still several issues on only some
subset of these tests that should be tracked on some other bugs (different
issues). 

Christophe, Humberto,
please review current test results, create corresponding bugs (one per same
root cause) and then close this one.

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