[Intel-gfx] ✗ Fi.CI.BAT: warning for drm/i915/gen9+: Whitelist TIMESTAMP register from BLT ring (rev2)

[Andrzej Lawrynowicz]

On Fri, Oct 28, 2016 at 11:46:20AM +0000, Patchwork wrote:
> == Series Details ==
> 
> Series: drm/i915/gen9+: Whitelist TIMESTAMP register from BLT ring (rev2)
> URL   : https://patchwork.freedesktop.org/series/14482/
> State : warning
> 
> == Summary ==
> 
> Series 14482v2 drm/i915/gen9+: Whitelist TIMESTAMP register from BLT ring
> https://patchwork.freedesktop.org/api/1.0/series/14482/revisions/2/mbox/
> 
> Test kms_flip:
>         Subgroup basic-flip-vs-wf_vblank:
>                 fail       -> SKIP       (fi-ivb-3770)
This result change is not connected to this commit.

This is orginal fail:
(kms_flip:8484) INFO: Expected frametime: 16666us; measured 16717.2us +-
14.529us accuracy 0.52%
(kms_flip:8484) CRITICAL: Test assertion failure function calibrate_ts,
file kms_flip.c:1362:

This is skip message:
Expected frametime: 16666us; measured 16717.3us +- 5.209us accuracy
0.19%
Test requirement not met in function calibrate_ts, file kms_flip.c:1367:
Test requirement: fabs(mean - expected) < 2*stddev
vblank interval differs from modeline! expected 16665.6us, measured
16717us +- 5.209us, difference 51.7us (9.9 sigma)

This looks like the same message but occured in different stages.    

> Test kms_pipe_crc_basic:
>         Subgroup nonblocking-crc-pipe-a:
>                 pass       -> DMESG-WARN (fi-ilk-650)
> 
[  326.380087] [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder B FIFO underrun

This warning is not connected to this change. This is sporadic that we
often see.

> 
> fdc2de7ae3cf48c2eaee3fb05b63848790725361 drm-intel-nightly: 2016y-10m-28d-10h-48m-07s UTC integration manifest
> 8690c14 drm/i915: Whitelist TIMESTAMP register from BLT ring for gen9+
> 
> == Logs ==
> 
> For more details see: https://intel-gfx-ci.01.org/CI/Patchwork_2846/
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