Wayland: Event queue is full (65535 events)

[rom1v]

With SDL 2.32.56 on Wayland, it seems that the event queue may fill up indefinitely:

Event queue is full (65535 events)

This causes my program to "freeze". It does not happen with X11.

More details:

• Fedora 42 Workstation (Wayland) - Occasional freezing Genymobile/scrcpy#6105
• Freezes on Fedora. Genymobile/scrcpy#6182 (probably the same issue)

[Kontrabant]

Since the issues mention Fedora and a hang of about 30 seconds, my first instinct is that this sounds like an old issue with too many key repeat events being generated, which was known and should be fixed in the current SDL3 3.2.16 release. Fedora 42 is still shipping SDL3 3.2.12, which does not have the final fix in place.

If the issue still occurs while running on top of the current 3.2.16 release (2.32.56 indicates sdl2-compat on top of SDL3), further investigation will be required.