Bug: Intermittent browser/base/content/test/performance/browser_windowopen.js | unexpected changed rect: ({x1:17, x2:30, y1:66, y2:78, w:14, h:13}), window width: 1280 -
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2021-12-09 16:20:18+00:00
Resolved: 2022-05-24 17:04:01+00:00

**Filed by:** malexandru [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=360659501&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/SB2X1cXTSMe_etHJCC2y3g/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2021-12-09T15:35:12.608Z] 15:35:12     INFO - TEST-PASS | browser/base/content/test/performance/browser_windowopen.js | 0 unexpected reflows - true == true - 
[task 2021-12-09T15:35:12.609Z] 15:35:12     INFO - comparing 4 frames
[task 2021-12-09T15:35:12.609Z] 15:35:12     INFO - TEST-FAIL | browser/base/content/test/performance/browser_windowopen.js | bug 1421463 - reload toolbar icon shouldn't flicker, ({x1:89, x2:102, y1:66, y2:79, w:14, h:14}), window width: 1280 - 
[task 2021-12-09T15:35:12.611Z] 15:35:12     INFO - TEST-FAIL | browser/base/content/test/performance/browser_windowopen.js | bug 1445161 - the window should be focused at first paint, [{x1:17, x2:30, y1:66, y2:78, w:14, h:13}, {x1:53, x2:66, y1:66, y2:78, w:14, h:13}, {x1:252, x2:290, y1:68, y2:77, w:39, h:10}, {x1:296, x2:320, y1:68, y2:77, w:25, h:10}, {x1:326, x2:369, y1:68, y2:80, w:44, h:13}, {x1:427, x2:473, y1:68, y2:77, w:47, h:10}, {x1:391, x2:422, y1:69, y2:77, w:32, h:9}, {x1:374, x2:386, y1:71, y2:77, w:13, h:7}] - 
[task 2021-12-09T15:35:12.611Z] 15:35:12     INFO - Buffered messages finished
[task 2021-12-09T15:35:12.612Z] 15:35:12     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/performance/browser_windowopen.js | unexpected changed rect: ({x1:17, x2:30, y1:66, y2:78, w:14, h:13}), window width: 1280 - 
[task 2021-12-09T15:35:12.613Z] 15:35:12     INFO - Stack trace:
[task 2021-12-09T15:35:12.613Z] 15:35:12     INFO - chrome://mochikit/content/browser-test.js:test_ok:1336
[task 2021-12-09T15:35:12.613Z] 15:35:12     INFO - chrome://mochitests/content/browser/browser/base/content/test/performance/head.js:reportUnexpectedFlicker/rects<:633
[task 2021-12-09T15:35:12.613Z] 15:35:12     INFO - chrome://mochitests/content/browser/browser/base/content/test/performance/head.js:reportUnexpectedFlicker:624
[task 2021-12-09T15:35:12.613Z] 15:35:12     INFO - chrome://mochitests/content/browser/browser/base/content/test/performance/head.js:withPerfObserver:693
[task 2021-12-09T15:35:12.613Z] 15:35:12     INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-12-09T15:35:12.615Z] 15:35:12     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/performance/browser_windowopen.js | unexpected changed rect: ({x1:53, x2:66, y1:66, y2:78, w:14, h:13}), window width: 1280 - 
[task 2021-12-09T15:35:12.615Z] 15:35:12     INFO - Stack trace:
[task 2021-12-09T15:35:12.615Z] 15:35:12     INFO - chrome://mochikit/content/browser-test.js:test_ok:1336
[task 2021-12-09T15:35:12.615Z] 15:35:12     INFO - chrome://mochitests/content/browser/browser/base/content/test/performance/head.js:reportUnexpectedFlicker/rects<:633
[task 2021-12-09T15:35:12.615Z] 15:35:12     INFO - chrome://mochitests/content/browser/browser/base/content/test/performance/head.js:reportUnexpectedFlicker:624
[task 2021-12-09T15:35:12.615Z] 15:35:12     INFO - chrome://mochitests/content/browser/browser/base/content/test/performance/head.js:withPerfObserver:693
[task 2021-12-09T15:35:12.616Z] 15:35:12     INFO - TEST-FAIL | browser/base/content/test/performance/browser_windowopen.js | bug 1555842 - the urlbar shouldn't flicker, ({x1:252, x2:290, y1:68, y2:77, w:39, h:10}), window width: 1280 - 
[task 2021-12-09T15:35:12.617Z] 15:35:12     INFO - TEST-FAIL | browser/base/content/test/performance/browser_windowopen.js | bug 1555842 - the urlbar shouldn't flicker, ({x1:296, x2:320, y1:68, y2:77, w:25, h:10}), window width: 1280 - 
[task 2021-12-09T15:35:12.617Z] 15:35:12     INFO - TEST-FAIL | browser/base/content/test/performance/browser_windowopen.js | bug 1555842 - the urlbar shouldn't flicker, ({x1:326, x2:369, y1:68, y2:80, w:44, h:13}), window width: 1280 - 
[task 2021-12-09T15:35:12.618Z] 15:35:12     INFO - TEST-FAIL | browser/base/content/test/performance/browser_windowopen.js | bug 1555842 - the urlbar shouldn't flicker, ({x1:427, x2:473, y1:68, y2:77, w:47, h:10}), window width: 1280 - 
[task 2021-12-09T15:35:12.619Z] 15:35:12     INFO - TEST-FAIL | browser/base/content/test/performance/browser_windowopen.js | bug 1555842 - the urlbar shouldn't flicker, ({x1:391, x2:422, y1:69, y2:77, w:32, h:9}), window width: 1280 - 
[task 2021-12-09T15:35:12.619Z] 15:35:12     INFO - TEST-FAIL | browser/base/content/test/performance/browser_windowopen.js | bug 1555842 - the urlbar shouldn't flicker, ({x1:374, x2:386, y1:71, y2:77, w:13, h:7}), window width: 1280 - 
[task 2021-12-09T15:35:12.722Z] 15:35:12     INFO - data:image/png;base64
[task 2021-12-09T15:35:12.828Z] 15:35:12     INFO - data:image/png;base64
[task 2021-12-09T15:35:12.828Z] 15:35:12     INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-12-09T15:35:12.830Z] 15:35:12     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/performance/browser_windowopen.js | should have 0 unknown flickering areas - Got 2, expected +0
[task 2021-12-09T15:35:12.830Z] 15:35:12     INFO - Stack trace:
[task 2021-12-09T15:35:12.830Z] 15:35:12     INFO - chrome://mochikit/content/browser-test.js:test_is:1364
[task 2021-12-09T15:35:12.830Z] 15:35:12     INFO - chrome://mochitests/content/browser/browser/base/content/test/performance/head.js:reportUnexpectedFlicker:650
[task 2021-12-09T15:35:12.830Z] 15:35:12     INFO - chrome://mochitests/content/browser/browser/base/content/test/performance/head.js:withPerfObserver:693
[task 2021-12-09T15:35:12.831Z] 15:35:12     INFO - Leaving test bound 
[task 2021-12-09T15:35:12.833Z] 15:35:12     INFO - Console message: [JavaScript Warning: "telemetry.state_file_read_errors - Unknown scalar."]
[task 2021-12-09T15:35:12.833Z] 15:35:12     INFO - Console message: [JavaScript Warning: "telemetry.generated_new_client_id - Unknown scalar."]
[task 2021-12-09T15:35:12.834Z] 15:35:12     INFO - GECKO(4588) | MEMORY STAT | vsize 1420MB | vsizeMaxContiguous 37MB | residentFast 644MB | heapAllocated 593MB
[task 2021-12-09T15:35:12.834Z] 15:35:12     INFO - TEST-OK | browser/base/content/test/performance/browser_windowopen.js | took 2064ms
[task 2021-12-09T15:35:12.835Z] 15:35:12     INFO - checking window state
[task 2021-12-09T15:35:12.836Z] 15:35:12     INFO - GECKO(4588) | Completed ShutdownLeaks collections in process 4468
[task 2021-12-09T15:35:12.836Z] 15:35:12     INFO - TEST-START | Shutdown
[task 2021-12-09T15:35:12.837Z] 15:35:12     INFO - Browser Chrome Test Summary
[task 2021-12-09T15:35:12.838Z] 15:35:12     INFO - Passed:  69
[task 2021-12-09T15:35:12.838Z] 15:35:12     INFO - Failed:  3
[task 2021-12-09T15:35:12.839Z] 15:35:12     INFO - Todo:    12
[task 2021-12-09T15:35:12.840Z] 15:35:12     INFO - Mode:    e10s
[task 2021-12-09T15:35:12.841Z] 15:35:12     INFO - *** End BrowserChrome Test Results ***
[task 2021-12-09T15:35:12.851Z] 15:35:12     INFO - GECKO(4588) | Exiting due to channel error.
[task 2021-12-09T15:35:12.943Z] 15:35:12     INFO - TEST-INFO | Main app process: exit 0
```