Bug: Intermittent toolkit/components/thumbnails/test/browser_thumbnails_bg_queueing.js | single tracking bug
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2022-02-04 06:08:37+00:00
Resolved: 2024-05-08 12:01:34+00:00

**Filed by:** nfay [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=366678904&repo=mozilla-central
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/HPI49sb-SvWR_9f5Uj2zXw/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2022-02-04T04:43:40.970Z] 04:43:40     INFO - TEST-START | toolkit/components/thumbnails/test/browser_thumbnails_bg_queueing.js
<...>
[task 2022-02-04T04:43:42.869Z] 04:43:42     INFO - TEST-PASS | toolkit/components/thumbnails/test/browser_thumbnails_bg_queueing.js | Thumbnail should be cached after capture - 
[task 2022-02-04T04:43:42.870Z] 04:43:42     INFO - Buffered messages finished
[task 2022-02-04T04:43:42.871Z] 04:43:42     INFO - TEST-UNEXPECTED-FAIL | toolkit/components/thumbnails/test/browser_thumbnails_bg_queueing.js | A promise chain failed to handle a rejection: Could not stat file(/tmp/tmp8iplhnf3.mozrunner/thumbnails/badc8210487e432c77699ef0ef7bd5e2.png) because it does not exist - stack: DOMException@resource://gre/modules/PromiseWorker.jsm:106:18
[task 2022-02-04T04:43:42.871Z] 04:43:42     INFO - postMessage@resource://gre/modules/PromiseWorker.jsm:342:55
[task 2022-02-04T04:43:42.871Z] 04:43:42     INFO - Rejection date: Fri Feb 04 2022 04:43:42 GMT+0000 (Coordinated Universal Time) - false == true - JS frame :: resource://testing-common/PromiseTestUtils.jsm :: assertNoUncaughtRejections :: line 271
[task 2022-02-04T04:43:42.871Z] 04:43:42     INFO - Stack trace:
[task 2022-02-04T04:43:42.871Z] 04:43:42     INFO - resource://testing-common/PromiseTestUtils.jsm:assertNoUncaughtRejections:271
[task 2022-02-04T04:43:42.872Z] 04:43:42     INFO - chrome://mochikit/content/browser-test.js:Tester_execTest/<:1161
[task 2022-02-04T04:43:42.872Z] 04:43:42     INFO - Leaving test bound thumbnails_bg_queueing
[task 2022-02-04T04:43:42.873Z] 04:43:42     INFO - GECKO(18683) | [Child 18754: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 7fd6ec79f000 == 1 [pid = 18754] [id = 17]
[task 2022-02-04T04:43:42.873Z] 04:43:42     INFO - GECKO(18683) | [Child 18754: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 17 (7fd6ec743040) [pid = 18754] [serial = 51] [outer = 0]
[task 2022-02-04T04:43:42.874Z] 04:43:42     INFO - GECKO(18683) | [Child 18754: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 18 (7fd6ec79f800) [pid = 18754] [serial = 52] [outer = 7fd6ec743040]
[task 2022-02-04T04:43:42.875Z] 04:43:42     INFO - GECKO(18683) | [Child 18754, Main Thread] WARNING: Fallback to BasicLayerManager: file /builds/worker/checkouts/gecko/dom/ipc/BrowserChild.cpp:2832
[task 2022-02-04T04:43:42.875Z] 04:43:42     INFO - GECKO(18683) | [Child 18754: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 19 (7fd6ec79d400) [pid = 18754] [serial = 53] [outer = 7fd6ec743040]
[task 2022-02-04T04:43:42.876Z] 04:43:42     INFO - GECKO(18683) | MEMORY STAT | vsize 11459MB | residentFast 525MB | heapAllocated 232MB
[task 2022-02-04T04:43:42.877Z] 04:43:42     INFO - TEST-OK | toolkit/components/thumbnails/test/browser_thumbnails_bg_queueing.js | took 1578ms
[task 2022-02-04T04:43:42.877Z] 04:43:42     INFO - GECKO(18683) | [Child 18872: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 7f80245e1000 == 1 [pid = 18872] [id = 9]
[task 2022-02-04T04:43:42.878Z] 04:43:42     INFO - GECKO(18683) | [Child 18872: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 3 (7f8023c9f040) [pid = 18872] [serial = 24] [outer = 0]
[task 2022-02-04T04:43:42.879Z] 04:43:42     INFO - GECKO(18683) | [Child 18872: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 4 (7f80245e2800) [pid = 18872] [serial = 25] [outer = 7f8023c9f040]
[task 2022-02-04T04:43:42.879Z] 04:43:42     INFO - GECKO(18683) | [Parent 18683, Main Thread] WARNING: NS_ENSURE_SUCCESS(rv, false) failed with result 0x804B0050 (NS_ERROR_INSUFFICIENT_DOMAIN_LEVELS): file /builds/worker/checkouts/gecko/toolkit/components/antitracking/URLQueryStringStripper.cpp:129
[task 2022-02-04T04:43:42.880Z] 04:43:42     INFO - GECKO(18683) | [Child 18872, Main Thread] WARNING: NS_ENSURE_SUCCESS(rv, false) failed with result 0x804B0050 (NS_ERROR_INSUFFICIENT_DOMAIN_LEVELS): file /builds/worker/checkouts/gecko/toolkit/components/antitracking/URLQueryStringStripper.cpp:129
[task 2022-02-04T04:43:42.881Z] 04:43:42     INFO - GECKO(18683) | [Child 18872, Main Thread] WARNING: NS_ENSURE_SUCCESS(rv, false) failed with result 0x804B0050 (NS_ERROR_INSUFFICIENT_DOMAIN_LEVELS): file /builds/worker/checkouts/gecko/toolkit/components/antitracking/URLQueryStringStripper.cpp:129
[task 2022-02-04T04:43:42.882Z] 04:43:42     INFO - checking window state
[task 2022-02-04T04:43:42.883Z] 04:43:42     INFO - Console message: [JavaScript Warning: "An iframe which has both allow-top-navigation and allow-top-navigation-by-user-activation for its sandbox attribute will permit top navigations." {file: "about:blank" line: 0}]
[task 2022-02-04T04:43:42.883Z] 04:43:42     INFO - TEST-START | toolkit/components/thumbnails/test/browser_thumbnails_bg_redirect.js

```