Bug: Intermittent browser/components/urlbar/tests/browser/browser_loadRace.js | single tracking bug
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2023-09-27 12:57:52+00:00
Resolved: 2023-10-27 12:00:49+00:00

**Filed by:** csabou [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=430469930&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/X_769n2BQ_-y6w_K5Fjv-g/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2023-09-27T11:45:59.447Z] 11:45:59     INFO - TEST-PASS | browser/components/urlbar/tests/browser/browser_loadRace.js | Should still have 2 tabs - 2 == 2 - 
[task 2023-09-27T11:45:59.448Z] 11:45:59     INFO - Leaving test bound test_opening_different_tab_with_location_change
[task 2023-09-27T11:45:59.448Z] 11:45:59     INFO - Buffered messages finished
[task 2023-09-27T11:45:59.449Z] 11:45:59     INFO - TEST-UNEXPECTED-FAIL | browser/components/urlbar/tests/browser/browser_loadRace.js | waiting for vsync to be disabled - timed out after 50 tries. - false == true - {"filename":"chrome://mochikit/content/browser-test.js","name":"ensureVsyncDisabled","sourceId":547,"lineNumber":603,"columnNumber":19,"sourceLine":"","asyncCause":null,"asyncCaller":{"filename":"chrome://mochikit/content/browser-test.js","name":"nextTest","sourceId":547,"lineNumber":768,"columnNumber":18,"sourceLine":"","asyncCause":null,"asyncCaller":{"filename":"chrome://mochikit/content/browser-test.js","name":"testScope/test_finish/<","sourceId":547,"lineNumber":1794,"columnNumber":25,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":{"filename":"chrome://mochikit/content/browser-test.js","name":"run","sourceId":547,"lineNumber":1714,"columnNumber":9,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":null,"formattedStack":"run@chrome://mochikit/content/browser-test.js:1714:9\n","nativeSavedFrame":{}},"formattedStack":"async*testScope/test_finish/<@chrome://mochikit/content/browser-test.js:1794:25\nrun@chrome://mochikit/content/browser-test.js:1714:9\n","nativeSavedFrame":{}},"caller":null,"formattedStack":"async*nextTest@chrome://mochikit/content/browser-test.js:768:18\nasync*testScope/test_finish/<@chrome://mochikit/content/browser-test.js:1794:25\nrun@chrome://mochikit/content/browser-test.js:1714:9\n","nativeSavedFrame":{}},"caller":null,"formattedStack":"ensureVsyncDisabled@chrome://mochikit/content/browser-test.js:603:19\nasync*nextTest@chrome://mochikit/content/browser-test.js:768:18\nasync*testScope/test_finish/<@chrome://mochikit/content/browser-test.js:1794:25\nrun@chrome://mochikit/content/browser-test.js:1714:9\n","nativeSavedFrame":{}}
[task 2023-09-27T11:45:59.449Z] 11:45:59     INFO - Stack trace:
[task 2023-09-27T11:45:59.449Z] 11:45:59     INFO - chrome://mochikit/content/browser-test.js:ensureVsyncDisabled:603
[task 2023-09-27T11:45:59.450Z] 11:45:59     INFO - chrome://mochikit/content/browser-test.js:nextTest:768
[task 2023-09-27T11:45:59.450Z] 11:45:59     INFO - chrome://mochikit/content/browser-test.js:testScope/test_finish/<:1794
[task 2023-09-27T11:45:59.450Z] 11:45:59     INFO - chrome://mochikit/content/browser-test.js:run:1714
[task 2023-09-27T11:45:59.450Z] 11:45:59     INFO - Not taking screenshot here: see the one that was previously logged
[task 2023-09-27T11:45:59.452Z] 11:45:59     INFO - TEST-UNEXPECTED-FAIL | browser/components/urlbar/tests/browser/browser_loadRace.js | vsync remained enabled at the end of the test. Is there an animation still running? Consider talking to the performance team for tips to solve this. - false == true - {"filename":"chrome://mochikit/content/browser-test.js","name":"ensureVsyncDisabled","sourceId":547,"lineNumber":604,"columnNumber":19,"sourceLine":"","asyncCause":null,"asyncCaller":{"filename":"chrome://mochikit/content/browser-test.js","name":"nextTest","sourceId":547,"lineNumber":768,"columnNumber":18,"sourceLine":"","asyncCause":null,"asyncCaller":{"filename":"chrome://mochikit/content/browser-test.js","name":"testScope/test_finish/<","sourceId":547,"lineNumber":1794,"columnNumber":25,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":{"filename":"chrome://mochikit/content/browser-test.js","name":"run","sourceId":547,"lineNumber":1714,"columnNumber":9,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":null,"formattedStack":"run@chrome://mochikit/content/browser-test.js:1714:9\n","nativeSavedFrame":{}},"formattedStack":"async*testScope/test_finish/<@chrome://mochikit/content/browser-test.js:1794:25\nrun@chrome://mochikit/content/browser-test.js:1714:9\n","nativeSavedFrame":{}},"caller":null,"formattedStack":"async*nextTest@chrome://mochikit/content/browser-test.js:768:18\nasync*testScope/test_finish/<@chrome://mochikit/content/browser-test.js:1794:25\nrun@chrome://mochikit/content/browser-test.js:1714:9\n","nativeSavedFrame":{}},"caller":null,"formattedStack":"ensureVsyncDisabled@chrome://mochikit/content/browser-test.js:604:19\nasync*nextTest@chrome://mochikit/content/browser-test.js:768:18\nasync*testScope/test_finish/<@chrome://mochikit/content/browser-test.js:1794:25\nrun@chrome://mochikit/content/browser-test.js:1714:9\n","nativeSavedFrame":{}}
[task 2023-09-27T11:45:59.452Z] 11:45:59     INFO - Stack trace:
[task 2023-09-27T11:45:59.452Z] 11:45:59     INFO - chrome://mochikit/content/browser-test.js:ensureVsyncDisabled:604
[task 2023-09-27T11:45:59.452Z] 11:45:59     INFO - chrome://mochikit/content/browser-test.js:nextTest:768
[task 2023-09-27T11:45:59.452Z] 11:45:59     INFO - chrome://mochikit/content/browser-test.js:testScope/test_finish/<:1794
[task 2023-09-27T11:45:59.452Z] 11:45:59     INFO - chrome://mochikit/content/browser-test.js:run:1714
[task 2023-09-27T11:45:59.453Z] 11:45:59     INFO - GECKO(2552) | MEMORY STAT | vsize 8353MB | residentFast 538MB | heapAllocated 219MB
[task 2023-09-27T11:45:59.453Z] 11:45:59     INFO - TEST-OK | browser/components/urlbar/tests/browser/browser_loadRace.js | took 12517ms
```