lldb hangs 1-2s whenever I press Ctrl+key or Cmd+key for the first time on Mac (since winit v0.30)

[zhaop]

Bevy version

Present on v0.14.0-rc.3, not present on v0.13.2. I've bissected this to commit 061bee7, which fixes #13366 "fix: upgrade to winit v0.30".

[Optional] Relevant system information

Mac M1 Sonoma

What you did

When I debug my app via vscode (which uses lldb), I noticed that the first time I press Ctrl+key or Cmd+key, my app always hangs for 1-2 seconds: the window does not respond, and the Bevy main loop hangs during this time. (Things like .just_pressed are also broken -- the key eventually gets "pressed" without ever triggering "just_pressed")

Things run normally

• on subsequent shortcut presses
• or when I run my app without debugging.

What went wrong

I was expecting the app not to hang when I press shortcuts.

Additional information

I used this to reproduce the bug:

cargo build --example empty_defaults && lldb -o run target/debug/examples/empty_defaults

This builds the empty defaults example (a simple empty window) and runs it with the lldb debugger. As soon as the window appears, I press a random Ctrl+key shortcut, e.g. Ctrl+L, and the following happens:

• Starting from 061bee7: I see lldb loading some Apple-specific symbol tables for 1-2 seconds, and the window hangs during this time
• Before 061bee7: lldb does not do the symbol table loading, and the app continues running without a hitch

I've bisected into winit, and this issue seems to have been introduced in rust-windowing/winit#3231 , which adds the "Services menu" feature to the app on Mac.

[zhaop]

Opened related winit issue rust-windowing/winit#3760