Bug: Intermittent browser/components/aboutwelcome/tests/browser/browser_aboutwelcome_multistage_mr.js | single tracking bug
Status: RESOLVED
Priority: --
Resolution: WORKSFORME
Created: 2024-05-09 01:27:53+00:00
Resolved: 2024-05-20 17:21:24+00:00

**Filed by:** sstanca [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=457522508&repo=mozilla-central
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/D8hORi2KRfm5YkXKJ6E2Ig/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2024-05-09T00:24:33.563Z] 00:24:33     INFO - TEST-PASS | browser/components/aboutwelcome/tests/browser/browser_aboutwelcome_multistage_mr.js | .multi-select-container should have computed justifyContent of flex-start - "flex-start" == "flex-start" - 
[task 2024-05-09T00:24:33.564Z] 00:24:33     INFO - Leaving test bound test_aboutwelcome_multiselect
[task 2024-05-09T00:24:33.565Z] 00:24:33     INFO - Buffered messages finished
[task 2024-05-09T00:24:33.576Z] 00:24:33     INFO - TEST-UNEXPECTED-FAIL | browser/components/aboutwelcome/tests/browser/browser_aboutwelcome_multistage_mr.js | waiting for vsync to be disabled - timed out after 50 tries. - false == true - {"filename":"chrome://mochikit/content/browser-test.js","name":"ensureVsyncDisabled","sourceId":589,"lineNumber":607,"columnNumber":19,"sourceLine":"","asyncCause":null,"asyncCaller":{"filename":"chrome://mochikit/content/browser-test.js","name":"nextTest","sourceId":589,"lineNumber":776,"columnNumber":18,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":{"filename":"chrome://mochikit/content/browser-test.js","name":"testScope/test_finish/<","sourceId":589,"lineNumber":1806,"columnNumber":25,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":{"filename":"chrome://mochikit/content/browser-test.js","name":"run","sourceId":589,"lineNumber":1726,"columnNumber":9,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":null,"formattedStack":"run@chrome://mochikit/content/browser-test.js:1726:9\n","nativeSavedFrame":{}},"formattedStack":"testScope/test_finish/<@chrome://mochikit/content/browser-test.js:1806:25\nrun@chrome://mochikit/content/browser-test.js:1726:9\n","nativeSavedFrame":{}},"formattedStack":"async*nextTest@chrome://mochikit/content/browser-test.js:776:18\ntestScope/test_finish/<@chrome://mochikit/content/browser-test.js:1806:25\nrun@chrome://mochikit/content/browser-test.js:1726:9\n","nativeSavedFrame":{}},"caller":null,"formattedStack":"ensureVsyncDisabled@chrome://mochikit/content/browser-test.js:607:19\nasync*nextTest@chrome://mochikit/content/browser-test.js:776:18\ntestScope/test_finish/<@chrome://mochikit/content/browser-test.js:1806:25\nrun@chrome://mochikit/content/browser-test.js:1726:9\n","nativeSavedFrame":{}}
[task 2024-05-09T00:24:33.576Z] 00:24:33     INFO - Stack trace:
[task 2024-05-09T00:24:33.576Z] 00:24:33     INFO - chrome://mochikit/content/browser-test.js:ensureVsyncDisabled:607
[task 2024-05-09T00:24:33.576Z] 00:24:33     INFO - chrome://mochikit/content/browser-test.js:nextTest:776
[task 2024-05-09T00:24:33.577Z] 00:24:33     INFO - chrome://mochikit/content/browser-test.js:testScope/test_finish/<:1806
[task 2024-05-09T00:24:33.577Z] 00:24:33     INFO - chrome://mochikit/content/browser-test.js:run:1726
[task 2024-05-09T00:24:33.577Z] 00:24:33     INFO - Not taking screenshot here: see the one that was previously logged
[task 2024-05-09T00:24:33.580Z] 00:24:33     INFO - TEST-UNEXPECTED-FAIL | browser/components/aboutwelcome/tests/browser/browser_aboutwelcome_multistage_mr.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":589,"lineNumber":608,"columnNumber":19,"sourceLine":"","asyncCause":null,"asyncCaller":{"filename":"chrome://mochikit/content/browser-test.js","name":"nextTest","sourceId":589,"lineNumber":776,"columnNumber":18,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":{"filename":"chrome://mochikit/content/browser-test.js","name":"testScope/test_finish/<","sourceId":589,"lineNumber":1806,"columnNumber":25,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":{"filename":"chrome://mochikit/content/browser-test.js","name":"run","sourceId":589,"lineNumber":1726,"columnNumber":9,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":null,"formattedStack":"run@chrome://mochikit/content/browser-test.js:1726:9\n","nativeSavedFrame":{}},"formattedStack":"testScope/test_finish/<@chrome://mochikit/content/browser-test.js:1806:25\nrun@chrome://mochikit/content/browser-test.js:1726:9\n","nativeSavedFrame":{}},"formattedStack":"async*nextTest@chrome://mochikit/content/browser-test.js:776:18\ntestScope/test_finish/<@chrome://mochikit/content/browser-test.js:1806:25\nrun@chrome://mochikit/content/browser-test.js:1726:9\n","nativeSavedFrame":{}},"caller":null,"formattedStack":"ensureVsyncDisabled@chrome://mochikit/content/browser-test.js:608:19\nasync*nextTest@chrome://mochikit/content/browser-test.js:776:18\ntestScope/test_finish/<@chrome://mochikit/content/browser-test.js:1806:25\nrun@chrome://mochikit/content/browser-test.js:1726:9\n","nativeSavedFrame":{}}
[task 2024-05-09T00:24:33.580Z] 00:24:33     INFO - Stack trace:
[task 2024-05-09T00:24:33.580Z] 00:24:33     INFO - chrome://mochikit/content/browser-test.js:ensureVsyncDisabled:608
[task 2024-05-09T00:24:33.580Z] 00:24:33     INFO - chrome://mochikit/content/browser-test.js:nextTest:776
[task 2024-05-09T00:24:33.580Z] 00:24:33     INFO - chrome://mochikit/content/browser-test.js:testScope/test_finish/<:1806
[task 2024-05-09T00:24:33.580Z] 00:24:33     INFO - chrome://mochikit/content/browser-test.js:run:1726
[task 2024-05-09T00:24:33.581Z] 00:24:33     INFO - GECKO(10172) | MEMORY STAT | vsize 2104319MB | vsizeMaxContiguous 66302321MB | residentFast 308MB | heapAllocated 125MB
[task 2024-05-09T00:24:33.582Z] 00:24:33     INFO - TEST-OK | browser/components/aboutwelcome/tests/browser/browser_aboutwelcome_multistage_mr.js | took 19458ms
```