Bug: Intermittent browser/components/screenshots/tests/browser/browser_screenshots_test_visible.js | single tracking bug
Status: NEW
Priority: P5
Created: 2024-10-01 21:00:17+00:00
Resolved: 2025-02-24 07:00:12+00:00

**Filed by:** imoraru [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=476452743&repo=mozilla-beta
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/Hsi0aUvRR1W5TLajSE6VdA/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2024-10-01T19:59:06.039Z] 19:59:06     INFO - TEST-PASS | browser/components/screenshots/tests/browser/browser_screenshots_test_visible.js | B color value - 
[task 2024-10-01T19:59:06.040Z] 19:59:06     INFO - Leaving test bound test_visibleScreenshotScrolledX
[task 2024-10-01T19:59:06.040Z] 19:59:06     INFO - Entering test bound test_visibleScreenshotScrolledXAndY
[task 2024-10-01T19:59:06.042Z] 19:59:06     INFO - Buffered messages finished
[task 2024-10-01T19:59:06.042Z] 19:59:06     INFO - TEST-UNEXPECTED-FAIL | browser/components/screenshots/tests/browser/browser_screenshots_test_visible.js | Test timed out - 
[task 2024-10-01T19:59:06.042Z] 19:59:06     INFO - GECKO(2698) | Completed ShutdownLeaks collections in process 2698
[task 2024-10-01T19:59:06.043Z] 19:59:06     INFO - TEST-START | Shutdown
[task 2024-10-01T19:59:06.044Z] 19:59:06     INFO - Browser Chrome Test Summary
[task 2024-10-01T19:59:06.044Z] 19:59:06     INFO - Passed:  206
[task 2024-10-01T19:59:06.045Z] 19:59:06     INFO - Failed:  1
[task 2024-10-01T19:59:06.046Z] 19:59:06     INFO - Todo:    0
[task 2024-10-01T19:59:06.046Z] 19:59:06     INFO - Mode:    e10s
[task 2024-10-01T19:59:06.047Z] 19:59:06     INFO - *** End BrowserChrome Test Results ***
[task 2024-10-01T19:59:06.048Z] 19:59:06     INFO - GECKO(2698) | Crash Annotation GraphicsCriticalError: |[0][GFX1-]: RenderCompositorSWGL failed mapping default framebuffer, no dt (t=163.093) [GFX1-]: RenderCompositorSWGL failed mapping default framebuffer, no dt
[task 2024-10-01T19:59:06.125Z] 19:59:06     INFO - GECKO(2698) | 1727812746124	Marionette	TRACE	Received observer notification quit-application
[task 2024-10-01T19:59:06.127Z] 19:59:06     INFO - GECKO(2698) | 1727812746126	Marionette	INFO	Stopped listening on port 2828
[task 2024-10-01T19:59:06.138Z] 19:59:06     INFO - GECKO(2698) | 1727812746137	Marionette	DEBUG	Marionette stopped listening
[task 2024-10-01T19:59:06.265Z] 19:59:06     INFO - Not taking screenshot here: see the one that was previously logged
[task 2024-10-01T19:59:06.268Z] 19:59:06     INFO - TEST-UNEXPECTED-FAIL | browser/components/screenshots/tests/browser/browser_screenshots_test_visible.js | Uncaught exception received from previously timed out test bound test_visibleScreenshotScrolledXAndY - at resource://testing-common/BrowserTestUtils.sys.mjs:501 - Error: The window unloaded while we were waiting for the browser to load - this should never happen.
[task 2024-10-01T19:59:06.268Z] 19:59:06     INFO - Stack trace:
[task 2024-10-01T19:59:06.269Z] 19:59:06     INFO - listener@resource://testing-common/BrowserTestUtils.sys.mjs:501:15
[task 2024-10-01T19:59:06.269Z] 19:59:06     INFO - EventListener.handleEvent*browserLoaded/<@resource://testing-common/BrowserTestUtils.sys.mjs:516:27
[task 2024-10-01T19:59:06.269Z] 19:59:06     INFO - browserLoaded@resource://testing-common/BrowserTestUtils.sys.mjs:466:12
[task 2024-10-01T19:59:06.270Z] 19:59:06     INFO - openNewForegroundTab@resource://testing-common/BrowserTestUtils.sys.mjs:228:40
[task 2024-10-01T19:59:06.270Z] 19:59:06     INFO - withNewTab@resource://testing-common/BrowserTestUtils.sys.mjs:117:38
[task 2024-10-01T19:59:06.270Z] 19:59:06     INFO - test_visibleScreenshotScrolledXAndY@chrome://mochitests/content/browser/browser/components/screenshots/tests/browser/browser_screenshots_test_visible.js:302:26
[task 2024-10-01T19:59:06.271Z] 19:59:06     INFO - handleTask@chrome://mochikit/content/browser-test.js:1145:26
[task 2024-10-01T19:59:06.271Z] 19:59:06     INFO - _runTaskBasedTest@chrome://mochikit/content/browser-test.js:1217:18
[task 2024-10-01T19:59:06.271Z] 19:59:06     INFO - async*Tester_execTest@chrome://mochikit/content/browser-test.js:1358:14
[task 2024-10-01T19:59:06.271Z] 19:59:06     INFO - nextTest/<@chrome://mochikit/content/browser-test.js:1134:14
[task 2024-10-01T19:59:06.271Z] 19:59:06     INFO - SimpleTest.waitForFocus/<@chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:1058:13
[task 2024-10-01T19:59:06.272Z] 19:59:06     INFO - Entering test bound test_visibleScreenshotRTL
[task 2024-10-01T19:59:06.294Z] 19:59:06     INFO - Not taking screenshot here: see the one that was previously logged
[task 2024-10-01T19:59:06.295Z] 19:59:06     INFO - TEST-UNEXPECTED-FAIL | browser/components/screenshots/tests/browser/browser_screenshots_test_visible.js | Uncaught exception received from previously timed out test bound test_visibleScreenshotRTL - at chrome://global/content/elements/browser-custom-element.js:839 - TypeError: this.urlbarChangeTracker is undefined
<...>
```