[Linux] `NativeWindow` creation cause crash without adl in some cases

[itlancer]

Problem Description

NativeWindow creation cause crash without adl usage in some cases for some Linux devices. I can reproduce it with making main window visible, turn it to fullscreen and launching Worker before. Sample below. Happens in 25-50% of launches.

Reproduced with AIR 50.2.4.5 with multiple different Ubuntu 22.04.1 LTS x86_64 devices with different applications. Cannot test with AIR 50.2.5.1 because of https://github.com/airsdk/Adobe-Runtime-Support/issues/3195 There is no such issue when launch app via adl. Crash happens only with bundled application. There is no such issue with Ubuntu 20.10 x86_64 devices. There is no such issue using 51.0.0.4 (but in 5-10% cases there is another crash, see below). There is no such issue with Windows.

Related issues: https://github.com/airsdk/Adobe-Runtime-Support/issues/3166 https://github.com/airsdk/Adobe-Runtime-Support/issues/3195 https://github.com/airsdk/Adobe-Runtime-Support/issues/2523 https://github.com/airsdk/Adobe-Runtime-Support/issues/2548

Steps to Reproduce

Package application with code below (as bundled app, without adl!), launch on any Ubuntu 22.04.1 LTS x86_64 device and click anywhere on stage.

Application example with sources and crash logs attached. linux_create_nativewindow_crash.zip

package {
	import flash.display.Sprite;
	import flash.events.Event;
	import flash.events.MouseEvent;
	import flash.display.NativeWindowInitOptions;
	import flash.display.NativeWindow;
	import flash.display.StageDisplayState;
	import flash.system.Worker;
	import flash.system.WorkerDomain;
	
	public class LinuxCreateNativeWindowCrash extends Sprite {
		
		public function LinuxCreateNativeWindowCrash() {
			if (Worker.current.isPrimordial) {
				addEventListener(Event.ADDED_TO_STAGE, addedToStage);
			} else {
				trace("worker");
			}
		}
		
		private function addedToStage(e:Event):void {
			removeEventListener(Event.ADDED_TO_STAGE, addedToStage);
			var window:NativeWindow = stage.nativeWindow;
			window.visible = true;
			stage.displayState = StageDisplayState.FULL_SCREEN_INTERACTIVE;
			
			var worker:Worker = WorkerDomain.current.createWorker(this.loaderInfo.bytes);
			worker.start();
			
			stage.addEventListener(MouseEvent.CLICK, click);
		}
		
		private function click(e:MouseEvent):void {
			trace("click");
			var windowOptions:NativeWindowInitOptions = new NativeWindowInitOptions();
			new NativeWindow(windowOptions);//This line cause crash
		}

	}
}

Actual Result: With AIR 50.2.4.5 application crash in 25-50% of launches (full crash log crash_50.2.4.5.log in zip archive above):

(linux_create_nativewindow_crash:31161): GLib-CRITICAL **: 22:11:08.737: Source ID 15 was not found when attempting to remove it
Application crashed with an unhandled SIGSEGV

With AIR 51.0.0.4 application crash in 5-10% of launches just after start (without click) (full crash log crash_51.0.0.4.log in zip archive above):

(linux_create_nativewindow_crash:31254): GLib-CRITICAL **: 22:12:22.705: Source ID 15 was not found when attempting to remove it
[xcb] Unknown request in queue while dequeuing
[xcb] Most likely this is a multi-threaded client and XInitThreads has not been called
[xcb] Aborting, sorry about that.
linux_create_nativewindow_crash: ../../src/xcb_io.c:175: dequeue_pending_request: Assertion `!xcb_xlib_unknown_req_in_deq' failed.
Application crashed with an unhandled SIGABRT

Expected Result: NativeWindow will be created (without activation) without crash.

Known Workarounds

none