[Webkit-unassigned] [Bug 245616] New: [GTK4] Overscrolling causes high CPU usage when navigation gestures are not enabled

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=245616

            Bug ID: 245616
           Summary: [GTK4] Overscrolling causes high CPU usage when
                    navigation gestures are not enabled
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKitGTK
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: gabmus at disroot.org
                CC: bugs-noreply at webkitgtk.org

Created attachment 462579

  --> https://bugs.webkit.org/attachment.cgi?id=462579&action=review

Minimal bug reproducer

As the title says, overscrolling beyond the page limit either up or down causes high CPU usage. This goes away if scrolling back up/down after overscrolling.

This does not happen when enabling enable_back_forward_navigation_gestures.

It can be reproduced with minibrowser, as well as a minimal reproducer I'm attaching to the issue.

To see the issue go away in the reproducer attached uncomment the line saying self.enable_gestures().

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