[Bug 105537] [CI] [SKL only] igt@*@* - dmesg-warn - *ERROR* Potential atomic update failure on pipe A

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105537

--- Comment #13 from Lakshmi <lakshminarayana.vudum at intel.com> ---
(In reply to pbazan from comment #12)
> started to appear in dmesg after latest upgrade that included kernel
> 
> dmesg
> 
> [49529.776550] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update
> failure on pipe B (start=990487 end=990488) time 296 us, min 1073, max 1079,
> scanline start 1069, end 1083
> [49549.010097] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update
> failure on pipe B (start=991641 end=991642) time 289 us, min 1073, max 1079,
> scanline start 1069, end 1084
> [49588.660536] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update
> failure on pipe B (start=994020 end=994021) time 315 us, min 1073, max 1079,
> scanline start 1063, end 1084
> [49601.927316] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update
> failure on pipe B (start=994816 end=994817) time 132 us, min 1073, max 1079,
> scanline start 1072, end 1081
> [49658.711340] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update
> failure on pipe B (start=998223 end=998224) time 177 us, min 1073, max 1079,
> scanline start 1071, end 1079
> [49692.845142] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update
> failure on pipe B (start=1000271 end=1000272) time 152 us, min 1073, max
> 1079, scanline start 1072, end 1082
> [49697.045349] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update
> failure on pipe B (start=1000523 end=1000524) time 197 us, min 1073, max
> 1079, scanline start 1072, end 1083
> [49702.162041] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update
> failure on pipe B (start=1000830 end=1000831) time 234 us, min 1073, max
> 1079, scanline start 1067, end 1080
> [49718.678822] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update
> failure on pipe B (start=1001821 end=1001822) time 188 us, min 1073, max
> 1079, scanline start 1071, end 1081
> [49732.312328] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update
> failure on pipe B (start=1002639 end=1002640) time 192 us, min 1073, max
> 1079, scanline start 1067, end 1079
> [49809.680065] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update
> failure on pipe B (start=1007281 end=1007282) time 108 us, min 1073, max
> 1079, scanline start 1072, end 108
> 
> uname -r
> 
> 5.2.10-arch1-1-ARCH

What is the impact of this other the error messages in dmesg?  Asking to know
how serious is the issue. Can you please attach the log from boot with kernel
parameters drm.debug=0x1e log_buf_len=4M.
This issue could be a duplicate to Bug 106107. But not 100% sure.

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