Bug: Intermittent browser/components/sessionstore/test/browser_pinned_tabs.js | single tracking bug
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2022-08-01 18:03:07+00:00
Resolved: 2023-07-17 12:03:20+00:00

**Filed by:** imoraru [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=386029392&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/H3dUFOkuT1G3G1MWA2Zf0w/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2022-08-01T17:41:30.166Z] 17:41:30     INFO - TEST-START | browser/components/sessionstore/test/browser_pinned_tabs.js
[task 2022-08-01T17:41:31.606Z] 17:41:31     INFO - GECKO(2716) | Et tu, Brute?
[task 2022-08-01T17:41:31.791Z] 17:41:31     INFO - GECKO(2716) | [Parent 7716, IPC I/O Parent] WARNING: file /builds/worker/checkouts/gecko/ipc/chromium/src/base/process_util_win.cc:167
[task 2022-08-01T17:41:31.814Z] 17:41:31     INFO - GECKO(2716) | about:tabcrashed loaded and ready
[task 2022-08-01T17:41:33.002Z] 17:41:33     INFO - GECKO(2716) | Crash cleaned up
[task 2022-08-01T17:41:48.232Z] 17:41:48     INFO - TEST-INFO | started process screenshot
[task 2022-08-01T17:41:48.332Z] 17:41:48     INFO - TEST-INFO | screenshot: exit 0
[task 2022-08-01T17:41:48.332Z] 17:41:48     INFO - <snipped 21 output lines - if you need more context, please use SimpleTest.requestCompleteLog() in your test>
[task 2022-08-01T17:41:48.333Z] 17:41:48     INFO - Buffered messages logged at 17:41:30
[task 2022-08-01T17:41:48.334Z] 17:41:48     INFO - Entering test bound test_selected_pinned_tab_dataloss
[task 2022-08-01T17:41:48.334Z] 17:41:48     INFO - Saw load for data:text/plain,foo
[task 2022-08-01T17:41:48.335Z] 17:41:48     INFO - running 
[task 2022-08-01T17:41:48.335Z] 17:41:48     INFO - Console message: [JavaScript Warning: "This page is in Quirks Mode. Page layout may be impacted. For Standards Mode use �<!DOCTYPE html>�." {file: "https://www.example.com/" line: 0}]
[task 2022-08-01T17:41:48.336Z] 17:41:48     INFO - Saw load for about:robots
[task 2022-08-01T17:41:48.336Z] 17:41:48     INFO - Saw load for https://www.example.com/
[task 2022-08-01T17:41:48.337Z] 17:41:48     INFO - TEST-PASS | browser/components/sessionstore/test/browser_pinned_tabs.js | Should have 5 tabs - 
<...>
[task 2022-08-01T17:41:48.378Z] 17:41:48     INFO - 
[task 2022-08-01T17:41:48.378Z] 17:41:48     INFO - Console message: [JavaScript Error: "remote browser crashed while on https://www.example.com/
[task 2022-08-01T17:41:48.378Z] 17:41:48     INFO - " {file: "chrome://mochikit/content/mochitest-e10s-utils.js" line: 10}]
[task 2022-08-01T17:41:48.379Z] 17:41:48     INFO - e10s_init/<@chrome://mochikit/content/mochitest-e10s-utils.js:10:10
[task 2022-08-01T17:41:48.379Z] 17:41:48     INFO - 
[task 2022-08-01T17:41:48.379Z] 17:41:48     INFO - Buffered messages logged at 17:41:43
[task 2022-08-01T17:41:48.380Z] 17:41:48     INFO - TEST-PASS | browser/components/sessionstore/test/browser_pinned_tabs.js | Tab 1 should have matching URL - 
<...>
[task 2022-08-01T17:41:48.390Z] 17:41:48     INFO - TEST-PASS | browser/components/sessionstore/test/browser_pinned_tabs.js | Tab 18 should have matching URL - 
[task 2022-08-01T17:41:48.390Z] 17:41:48     INFO - running 
[task 2022-08-01T17:41:48.391Z] 17:41:48     INFO - Leaving test bound test_pinned_tab_dataloss
[task 2022-08-01T17:41:48.391Z] 17:41:48     INFO - running 
[task 2022-08-01T17:41:48.391Z] 17:41:48     INFO - Buffered messages finished
[task 2022-08-01T17:41:48.392Z] 17:41:48     INFO - TEST-UNEXPECTED-FAIL | browser/components/sessionstore/test/browser_pinned_tabs.js | waiting for vsync to be disabled - timed out after 50 tries. - false == true - JS frame :: chrome://mochikit/content/browser-test.js :: ensureVsyncDisabled :: line 575
[task 2022-08-01T17:41:48.392Z] 17:41:48     INFO - Stack trace:
[task 2022-08-01T17:41:48.392Z] 17:41:48     INFO - chrome://mochikit/content/browser-test.js:ensureVsyncDisabled:575
[task 2022-08-01T17:41:48.392Z] 17:41:48     INFO - Not taking screenshot here: see the one that was previously logged
[task 2022-08-01T17:41:48.393Z] 17:41:48     INFO - TEST-UNEXPECTED-FAIL | browser/components/sessionstore/test/browser_pinned_tabs.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 - JS frame :: chrome://mochikit/content/browser-test.js :: ensureVsyncDisabled :: line 576
[task 2022-08-01T17:41:48.393Z] 17:41:48     INFO - Stack trace:
[task 2022-08-01T17:41:48.394Z] 17:41:48     INFO - chrome://mochikit/content/browser-test.js:ensureVsyncDisabled:576
[task 2022-08-01T17:41:48.394Z] 17:41:48     INFO - GECKO(2716) | MEMORY STAT | vsize 2112596MB | vsizeMaxContiguous 65236602MB | residentFast 365MB | heapAllocated 102MB
[task 2022-08-01T17:41:48.395Z] 17:41:48     INFO - TEST-OK | browser/components/sessionstore/test/browser_pinned_tabs.js | took 18083ms
[task 2022-08-01T17:41:48.395Z] 17:41:48     INFO - checking window state
[task 2022-08-01T17:41:48.395Z] 17:41:48     INFO - TEST-START | browser/components/sessionstore/test/browser_privatetabs.js
```