Bug: Intermittent browser/components/preferences/tests/browser_search_within_preferences_2.js | Uncaught exception received from previously timed out test - sync-pane-loaded observer not removed before the end of test
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2021-10-13 00:27:05+00:00
Resolved: 2021-11-09 17:00:22+00:00

**Filed by:** malexandru [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=354581547&repo=mozilla-central
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/RQn4y11rRf-uDmRHJDOx7A/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2021-10-12T23:27:40.769Z] 23:27:40     INFO - TEST-START | browser/components/preferences/tests/browser_search_within_preferences_2.js
[task 2021-10-12T23:27:41.543Z] 23:27:41     INFO - GECKO(5728) | [GFX1-]: wr_window_new: Thread(Os { code: 8, kind: OutOfMemory, message: "Not enough storage is available to process this command." })
[task 2021-10-12T23:27:41.544Z] 23:27:41     INFO - GECKO(5728) | [GFX1-]: Failed to connect WebRenderBridgeChild.
[task 2021-10-12T23:27:41.656Z] 23:27:41     INFO - GECKO(5728) | [GFX1-]: wr_renderer_render: OutOfMemory
[task 2021-10-12T23:27:42.258Z] 23:27:42     INFO - GECKO(5728) | JavaScript error: , line 0: uncaught exception: out of memory
[task 2021-10-12T23:27:42.263Z] 23:27:42     INFO - GECKO(5728) | JavaScript error: chrome://global/content/elements/checkbox.js, line 63: uncaught exception: out of memory
[task 2021-10-12T23:27:42.264Z] 23:27:42     INFO - GECKO(5728) | JavaScript error: chrome://global/content/elements/checkbox.js, line 63: uncaught exception: out of memory
[task 2021-10-12T23:27:42.265Z] 23:27:42     INFO - GECKO(5728) | JavaScript error: chrome://global/content/elements/checkbox.js, line 63: uncaught exception: out of memory
[task 2021-10-12T23:27:42.265Z] 23:27:42     INFO - GECKO(5728) | JavaScript error: chrome://global/content/elements/checkbox.js, line 63: uncaught exception: out of memory
[task 2021-10-12T23:27:42.266Z] 23:27:42     INFO - GECKO(5728) | JavaScript error: chrome://global/content/elements/checkbox.js, line 63: uncaught exception: out of memory
[task 2021-10-12T23:27:42.267Z] 23:27:42     INFO - GECKO(5728) | JavaScript error: chrome://global/content/elements/checkbox.js, line 63: uncaught exception: out of memory
[task 2021-10-12T23:27:42.282Z] 23:27:42     INFO - GECKO(5728) | JavaScript error: chrome://browser/content/preferences/preferences.js, line 98: uncaught exception: out of memory
[task 2021-10-12T23:27:42.282Z] 23:27:42     INFO - GECKO(5728) | JavaScript error: chrome://browser/content/preferences/preferences.js, line 98: uncaught exception: out of memory
[task 2021-10-12T23:27:42.283Z] 23:27:42     INFO - GECKO(5728) | JavaScript error: chrome://browser/content/preferences/preferences.js, line 98: uncaught exception: out of memory
[task 2021-10-12T23:27:42.284Z] 23:27:42     INFO - GECKO(5728) | JavaScript error: chrome://browser/content/preferences/preferences.js, line 98: uncaught exception: out of memory
[task 2021-10-12T23:27:42.284Z] 23:27:42     INFO - GECKO(5728) | JavaScript error: chrome://browser/content/preferences/preferences.js, line 98: uncaught exception: out of memory
[task 2021-10-12T23:27:42.285Z] 23:27:42     INFO - GECKO(5728) | JavaScript error: chrome://browser/content/preferences/preferences.js, line 98: uncaught exception: out of memory
[task 2021-10-12T23:27:42.285Z] 23:27:42     INFO - GECKO(5728) | JavaScript error: , line 0: uncaught exception: out of memory
<...>
[task 2021-10-12T23:28:25.901Z] 23:28:25     INFO - TEST-PASS | browser/components/preferences/tests/browser_search_within_preferences_2.js | showUpdateHistory should not be in search results - 
[task 2021-10-12T23:28:25.901Z] 23:28:25     INFO - Buffered messages finished
[task 2021-10-12T23:28:25.902Z] 23:28:25     INFO - TEST-UNEXPECTED-FAIL | browser/components/preferences/tests/browser_search_within_preferences_2.js | Test timed out - 
[task 2021-10-12T23:28:25.902Z] 23:28:25     INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-10-12T23:28:25.903Z] 23:28:25     INFO - TEST-UNEXPECTED-FAIL | browser/components/preferences/tests/browser_search_within_preferences_2.js | Uncaught exception received from previously timed out test - sync-pane-loaded observer not removed before the end of test
[task 2021-10-12T23:28:25.904Z] 23:28:25     INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-10-12T23:28:25.905Z] 23:28:25     INFO - TEST-UNEXPECTED-FAIL | browser/components/preferences/tests/browser_search_within_preferences_2.js | A promise chain failed to handle a rejection: out of memory - stack: (No stack available.)
[task 2021-10-12T23:28:25.905Z] 23:28:25     INFO - Rejection date: Tue Oct 12 2021 23:27:42 GMT+0000 (Coordinated Universal Time) - false == true - JS frame :: resource://testing-common/PromiseTestUtils.jsm :: assertNoUncaughtRejections :: line 285
[task 2021-10-12T23:28:25.905Z] 23:28:25     INFO - Stack trace:
[task 2021-10-12T23:28:25.905Z] 23:28:25     INFO - resource://testing-common/PromiseTestUtils.jsm:assertNoUncaughtRejections:285
[task 2021-10-12T23:28:25.905Z] 23:28:25     INFO - chrome://mochikit/content/browser-test.js:nextTest:625
[task 2021-10-12T23:28:25.906Z] 23:28:25     INFO - chrome://mochikit/content/browser-test.js:timeoutFn:1224
[task 2021-10-12T23:28:25.906Z] 23:28:25     INFO - GECKO(5728) | MEMORY STAT | vsize 1752MB | vsizeMaxContiguous 30MB | residentFast 805MB | heapAllocated 602MB
[task 2021-10-12T23:28:25.907Z] 23:28:25     INFO - TEST-OK | browser/components/preferences/tests/browser_search_within_preferences_2.js | took 45038ms
[task 2021-10-12T23:28:25.907Z] 23:28:25     INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-10-12T23:28:25.908Z] 23:28:25     INFO - TEST-UNEXPECTED-FAIL | browser/components/preferences/tests/browser_search_within_preferences_2.js | Found a tab after previous test timed out: about:preferences#general - 
[task 2021-10-12T23:28:25.909Z] 23:28:25     INFO - checking window state
[task 2021-10-12T23:28:25.909Z] 23:28:25     INFO - TEST-START | browser/components/preferences/tests/browser_search_within_preferences_command.js
```