[Bug 106885] [CI] igt at kms_plane@pixel-format-pipe-[abc]-planes - dmesg-warn - *ERROR* Overflow of CRC buffer, userspace reads too slow.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=106885

--- Comment #7 from Martin Peres <martin.peres at free.fr> ---
(In reply to Mika Kahola from comment #6)
> If this error is not seen regularly, maybe we could pump up a bit the size
> of a ringbuffer. Now, we have DRM_CRC_ENTRIES_NR defined as 128, so maybe we
> could increase it to 256?

Are the CRCs per pipe or global? If it is per-pipe, then 128 CRCs @ 60 Hz is
more than 2 seconds of not reading the crc... I would think that this ought to
be sufficient and if it is not, we really need to look into why we have such
latency in the userspace, don't you think? :o

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