[Webkit-unassigned] [Bug 195388] Fixed elements can flicker on a page that is busy doing layout

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=195388

--- Comment #2 from Simon Fraser (smfr) <simon.fraser at apple.com> ---
Still not sure what's happening here. I have verified that the state of the layer tree as set by the scrolling thread is always correct (logging CALayer positions).

We may have a race between main thread commits setting layer positions, and the scrolling tree doing so. We don't really have any protection against CACommit racing.

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