Bug: Intermittent browser/base/content/test/performance/browser_preferences_usage.js | Should have accessed all known problematic prefs. Remaining: layout.css.dpi - Got 1, expected +0
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2021-04-27 15:20:53+00:00
Resolved: 2022-01-11 17:05:45+00:00

**Filed by:** dluca [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=337869440&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/f2akdf2iRTC6w-uNnI5jBQ/runs/1/artifacts/public/logs/live_backing.log
**Reftest URL:** https://hg.mozilla.org/mozilla-central/raw-file/tip/layout/tools/reftest/reftest-analyzer.xhtml#logurl=https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/f2akdf2iRTC6w-uNnI5jBQ/runs/1/artifacts/public/logs/live_backing.log&only_show_unexpected=1

---
```
INFO - TEST-PASS | browser/base/content/test/performance/browser_preferences_usage.js | memory.ghost_window_timeout_seconds should not be accessed more than 32 times. - 1 <= 32 - 
[task 2021-04-27T14:19:04.001Z] 14:19:04     INFO - Buffered messages finished
[task 2021-04-27T14:19:04.005Z] 14:19:04     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/performance/browser_preferences_usage.js | Should have accessed all known problematic prefs. Remaining: layout.css.dpi - Got 1, expected +0
[task 2021-04-27T14:19:04.005Z] 14:19:04     INFO - Stack trace:
[task 2021-04-27T14:19:04.005Z] 14:19:04     INFO - chrome://mochikit/content/browser-test.js:test_is:1369
[task 2021-04-27T14:19:04.005Z] 14:19:04     INFO - chrome://mochitests/content/browser/browser/base/content/test/performance/browser_preferences_usage.js:checkPrefGetters:81
[task 2021-04-27T14:19:04.005Z] 14:19:04     INFO - chrome://mochitests/content/browser/browser/base/content/test/performance/browser_preferences_usage.js:open_10_tabs:181
[task 2021-04-27T14:19:04.006Z] 14:19:04     INFO - Leaving test bound open_10_tabs
[task 2021-04-27T14:19:04.006Z] 14:19:04     INFO - Entering test bound navigate_around
[task 2021-04-27T14:19:04.007Z] 14:19:04     INFO - GECKO(1537) | [Child 1724: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 7f238cecc000 == 4 [pid = 1724] [id = 4]
[task 2021-04-27T14:19:04.007Z] 14:19:04     INFO - GECKO(1537) | [Child 1724: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 9 (7f238dead200) [pid = 1724] [serial = 12] [outer = 0]
[task 2021-04-27T14:19:04.008Z] 14:19:04     INFO - GECKO(1537) | [Child 1724: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 10 (7f238cecf800) [pid = 1724] [serial = 13] [outer = 7f238dead200]
[task 2021-04-27T14:19:04.009Z] 14:19:04     INFO - GECKO(1537) | Waiting for browser load
[task 2021-04-27T14:19:04.010Z] 14:19:04     INFO - GECKO(1537) | Waiting for browser state change
[task 2021-04-27T14:19:04.010Z] 14:19:04     INFO - GECKO(1537) | Saw state f0001 and status 0
[task 2021-04-27T14:19:04.011Z] 14:19:04     INFO - GECKO(1537) | [Child 1724: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 11 (7f238ced5800) [pid = 1724] [serial = 14] [outer = 7f238dead200]
[task 2021-04-27T14:19:04.048Z] 14:19:04     INFO - GECKO(1537) | Saw state c0010 and status 0
[task 2021-04-27T14:19:04.049Z] 14:19:04     INFO - GECKO(1537) | Browser got expected state change http://example.com/
[task 2021-04-27T14:19:04.050Z] 14:19:04     INFO - Navigating to http://example.com/...
[task 2021-04-27T14:19:04.248Z] 14:19:04     INFO - GECKO(1537) | [Child 1724: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 12 (7f238ced2000) [pid = 1724] [serial = 15] [outer = 7f238dead200]
[task 2021-04-27T14:19:04.371Z] 14:19:04     INFO - Loaded http://example.com/.
[task 2021-04-27T14:19:04.373Z] 14:19:04     INFO - Navigating to https://example.com/...
[task 2021-04-27T14:19:04.556Z] 14:19:04     INFO - GECKO(1537) | [Child 1724, Main Thread] WARNING: NS_ENSURE_TRUE(info) failed: file /builds/worker/checkouts/gecko/extensions/permissions/PermissionDelegateHandler.cpp:348
[task 2021-04-27T14:19:04.556Z] 14:19:04     INFO - GECKO(1537) | [Child 1724: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 13 (7f238dec6c00) [pid = 1724] [serial = 16] [outer = 7f238dead200]
[task 2021-04-27T14:19:04.739Z] 14:19:04     INFO - Loaded https://example.com/.
[task 2021-04-27T14:19:04.740Z] 14:19:04     INFO - Navigating to http://example.org/...
[task 2021-04-27T14:19:04.839Z] 14:19:04     INFO - GECKO(1537) | [Child 1724, Main Thread] WARNING: NS_ENSURE_TRUE(info) failed: file /builds/worker/checkouts/gecko/extensions/permissions/PermissionDelegateHandler.cpp:348
[task 2021-04-27T14:19:04.854Z] 14:19:04     INFO - GECKO(1537) | [Child 1724: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 14 (7f238decdc00) [pid = 1724] [serial = 17] [outer = 7f238dead200]
[task 2021-04-27T14:19:05.031Z] 14:19:05     INFO - Loaded http://example.org/.
[task 2021-04-27T14:19:05.032Z] 14:19:05     INFO - Navigating to https://example.org/...
[task 2021-04-27T14:19:05.170Z] 14:19:05     INFO - GECKO(1537) | [Child 1724, Main Thread] WARNING: NS_ENSURE_TRUE(info) failed: file /builds/worker/checkouts/gecko/extensions/permissions/PermissionDelegateHandler.cpp:348
[task 2021-04-27T14:19:05.171Z] 14:19:05     INFO - GECKO(1537) | [Child 1724: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 15 (7f2394094400) [pid = 1724] [serial = 18] [outer = 7f238dead200]
[task 2021-04-27T14:19:05.348Z] 14:19:05     INFO - Loaded https://example.org/.
[task 2021-04-27T14:19:05.348Z] 14:19:05     INFO - Navigating to http://example.com/...
[task 2021-04-27T14:19:05.470Z] 14:19:05     INFO - GECKO(1537) | [Child 1724: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 16 (7f2394090000) [pid = 1724] [serial = 19] [outer = 7f238dead200]```