Bug: Intermittent browser/components/sessionstore/test/browser_remoteness_flip_on_restore.js | single tracking bug
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2023-12-07 00:19:34+00:00
Resolved: 2024-06-24 12:04:43+00:00

**Filed by:** ctuns [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=439117676&repo=mozilla-central
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/QsOd6s_WR32AjIbO-3Qmdg/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2023-12-06T23:13:45.352Z] 23:13:45     INFO - TEST-PASS | browser/components/sessionstore/test/browser_remoteness_flip_on_restore.js | Should have gotten the expected remoteness for the tab at index 2 - true == true - 
[task 2023-12-06T23:13:45.353Z] 23:13:45     INFO - Leaving test bound 
[task 2023-12-06T23:13:45.353Z] 23:13:45     INFO - Buffered messages finished
[task 2023-12-06T23:13:45.356Z] 23:13:45     INFO - TEST-UNEXPECTED-FAIL | browser/components/sessionstore/test/browser_remoteness_flip_on_restore.js | waiting for vsync to be disabled - timed out after 50 tries. - false == true - {"filename":"chrome://mochikit/content/browser-test.js","name":"ensureVsyncDisabled","sourceId":564,"lineNumber":606,"columnNumber":19,"sourceLine":"","asyncCause":null,"asyncCaller":{"filename":"chrome://mochikit/content/browser-test.js","name":"nextTest","sourceId":564,"lineNumber":775,"columnNumber":18,"sourceLine":"","asyncCause":null,"asyncCaller":{"filename":"chrome://mochikit/content/browser-test.js","name":"testScope/test_finish/<","sourceId":564,"lineNumber":1805,"columnNumber":25,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":{"filename":"chrome://mochikit/content/browser-test.js","name":"run","sourceId":564,"lineNumber":1725,"columnNumber":9,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":null,"formattedStack":"run@chrome://mochikit/content/browser-test.js:1725:9\n","nativeSavedFrame":{}},"formattedStack":"async*testScope/test_finish/<@chrome://mochikit/content/browser-test.js:1805:25\nrun@chrome://mochikit/content/browser-test.js:1725:9\n","nativeSavedFrame":{}},"caller":null,"formattedStack":"async*nextTest@chrome://mochikit/content/browser-test.js:775:18\nasync*testScope/test_finish/<@chrome://mochikit/content/browser-test.js:1805:25\nrun@chrome://mochikit/content/browser-test.js:1725:9\n","nativeSavedFrame":{}},"caller":null,"formattedStack":"ensureVsyncDisabled@chrome://mochikit/content/browser-test.js:606:19\nasync*nextTest@chrome://mochikit/content/browser-test.js:775:18\nasync*testScope/test_finish/<@chrome://mochikit/content/browser-test.js:1805:25\nrun@chrome://mochikit/content/browser-test.js:1725:9\n","nativeSavedFrame":{}}
[task 2023-12-06T23:13:45.356Z] 23:13:45     INFO - Stack trace:
[task 2023-12-06T23:13:45.356Z] 23:13:45     INFO - chrome://mochikit/content/browser-test.js:ensureVsyncDisabled:606
[task 2023-12-06T23:13:45.356Z] 23:13:45     INFO - chrome://mochikit/content/browser-test.js:nextTest:775
[task 2023-12-06T23:13:45.356Z] 23:13:45     INFO - chrome://mochikit/content/browser-test.js:testScope/test_finish/<:1805
[task 2023-12-06T23:13:45.356Z] 23:13:45     INFO - chrome://mochikit/content/browser-test.js:run:1725
[task 2023-12-06T23:13:45.357Z] 23:13:45     INFO - Not taking screenshot here: see the one that was previously logged
[task 2023-12-06T23:13:45.360Z] 23:13:45     INFO - TEST-UNEXPECTED-FAIL | browser/components/sessionstore/test/browser_remoteness_flip_on_restore.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":564,"lineNumber":607,"columnNumber":19,"sourceLine":"","asyncCause":null,"asyncCaller":{"filename":"chrome://mochikit/content/browser-test.js","name":"nextTest","sourceId":564,"lineNumber":775,"columnNumber":18,"sourceLine":"","asyncCause":null,"asyncCaller":{"filename":"chrome://mochikit/content/browser-test.js","name":"testScope/test_finish/<","sourceId":564,"lineNumber":1805,"columnNumber":25,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":{"filename":"chrome://mochikit/content/browser-test.js","name":"run","sourceId":564,"lineNumber":1725,"columnNumber":9,"sourceLine":"","asyncCause":null,"asyncCaller":null,"caller":null,"formattedStack":"run@chrome://mochikit/content/browser-test.js:1725:9\n","nativeSavedFrame":{}},"formattedStack":"async*testScope/test_finish/<@chrome://mochikit/content/browser-test.js:1805:25\nrun@chrome://mochikit/content/browser-test.js:1725:9\n","nativeSavedFrame":{}},"caller":null,"formattedStack":"async*nextTest@chrome://mochikit/content/browser-test.js:775:18\nasync*testScope/test_finish/<@chrome://mochikit/content/browser-test.js:1805:25\nrun@chrome://mochikit/content/browser-test.js:1725:9\n","nativeSavedFrame":{}},"caller":null,"formattedStack":"ensureVsyncDisabled@chrome://mochikit/content/browser-test.js:607:19\nasync*nextTest@chrome://mochikit/content/browser-test.js:775:18\nasync*testScope/test_finish/<@chrome://mochikit/content/browser-test.js:1805:25\nrun@chrome://mochikit/content/browser-test.js:1725:9\n","nativeSavedFrame":{}}
[task 2023-12-06T23:13:45.360Z] 23:13:45     INFO - Stack trace:
[task 2023-12-06T23:13:45.360Z] 23:13:45     INFO - chrome://mochikit/content/browser-test.js:ensureVsyncDisabled:607
[task 2023-12-06T23:13:45.360Z] 23:13:45     INFO - chrome://mochikit/content/browser-test.js:nextTest:775
[task 2023-12-06T23:13:45.360Z] 23:13:45     INFO - chrome://mochikit/content/browser-test.js:testScope/test_finish/<:1805
[task 2023-12-06T23:13:45.360Z] 23:13:45     INFO - chrome://mochikit/content/browser-test.js:run:1725
[task 2023-12-06T23:13:45.361Z] 23:13:45     INFO - GECKO(1136) | MEMORY STAT | vsize 2104803MB | vsizeMaxContiguous 65573589MB | residentFast 597MB | heapAllocated 267MB
[task 2023-12-06T23:13:45.361Z] 23:13:45     INFO - TEST-OK | browser/components/sessionstore/test/browser_remoteness_flip_on_restore.js | took 10966ms
```