Bug: Intermittent TV [tier 2] browser/components/migration/tests/browser/browser_entrypoint_telemetry.js | single tracking bug
Status: NEW
Priority: P5
Created: 2023-03-21 00:40:04+00:00
Resolved: 2024-02-27 08:48:20+00:00

**Filed by:** mlaza [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=409545674&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/byJH6Y3cSdKmQCBw8pB4Rg/runs/0/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/byJH6Y3cSdKmQCBw8pB4Rg/runs/0/artifacts/public/logs/live_backing.log&only_show_unexpected=1

---
```
task 2023-03-20T23:08:09.989Z] 23:08:09     INFO - GECKO(1803) | [Parent 1803, Main Thread] WARNING: '!top', file /builds/worker/checkouts/gecko/dom/xul/MenuBarListener.cpp:99
[task 2023-03-20T23:08:10.122Z] 23:08:10     INFO - GECKO(1803) | [Parent 1803: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 11 (12df04c00) [pid = 1803] [serial = 4] [outer = 0] [url = about:blank]
[task 2023-03-20T23:08:10.125Z] 23:08:10     INFO - GECKO(1803) | [Parent 1803: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 10 (104723c30) [pid = 1803] [serial = 3] [outer = 0] [url = chrome://browser/content/browser.xhtml]
[task 2023-03-20T23:08:10.126Z] 23:08:10     INFO - GECKO(1803) | [Parent 1803: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 9 (104724bb0) [pid = 1803] [serial = 10] [outer = 0] [url = chrome://mochikit/content/browser-harness.xhtml]
[task 2023-03-20T23:08:10.127Z] 23:08:10     INFO - GECKO(1803) | [Parent 1803: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 8 (12a1d3800) [pid = 1803] [serial = 11] [outer = 0] [url = about:blank]
[task 2023-03-20T23:08:10.127Z] 23:08:10     INFO - GECKO(1803) | [Parent 1803: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 7 (123134800) [pid = 1803] [serial = 35] [outer = 0] [url = about:blank]
[task 2023-03-20T23:08:10.128Z] 23:08:10     INFO - GECKO(1803) | [Parent 1803: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 6 (164cc9000) [pid = 1803] [serial = 29] [outer = 0] [url = about:blank]
[task 2023-03-20T23:08:10.129Z] 23:08:10     INFO - GECKO(1803) | [Parent 1803: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 5 (104727a30) [pid = 1803] [serial = 5] [outer = 0] [url = chrome://extensions/content/dummy.xhtml]
[task 2023-03-20T23:08:10.129Z] 23:08:10     INFO - GECKO(1803) | [Parent 1803: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 4 (12e9b6400) [pid = 1803] [serial = 7] [outer = 0] [url = chrome://extensions/content/dummy.xhtml]
[task 2023-03-20T23:08:10.130Z] 23:08:10     INFO - GECKO(1803) | [Parent 1803: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 3 (12df09000) [pid = 1803] [serial = 2] [outer = 0] [url = about:blank]
[task 2023-03-20T23:08:10.131Z] 23:08:10     INFO - GECKO(1803) | [Parent 1803: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 2 (1047268c0) [pid = 1803] [serial = 1] [outer = 0] [url = chrome://browser/content/hiddenWindowMac.xhtml]
[task 2023-03-20T23:08:10.131Z] 23:08:10     INFO - GECKO(1803) | [Parent 1803: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 1 (1314adbb0) [pid = 1803] [serial = 28] [outer = 0] [url = chrome://browser/content/migration/migration.xhtml]
[task 2023-03-20T23:08:10.132Z] 23:08:10     INFO - GECKO(1803) | [Parent 1803: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 0 (13229c8c0) [pid = 1803] [serial = 8] [outer = 0] [url = about:blank]
[task 2023-03-20T23:08:10.161Z] 23:08:10     INFO - GECKO(1803) | [Parent 1803, Main Thread] WARNING: Extra shutdown CC: 'i < NORMAL_SHUTDOWN_COLLECTIONS', file /builds/worker/checkouts/gecko/xpcom/base/nsCycleCollector.cpp:3396
[task 2023-03-20T23:08:10.177Z] 23:08:10     INFO - GECKO(1803) | [Parent 1803, Main Thread] WARNING: NS_ENSURE_TRUE(InitStaticMembers()) failed: file /builds/worker/workspace/obj-build/dist/include/mozilla/Preferences.h:129
[task 2023-03-20T23:08:10.202Z] 23:08:10     INFO - GECKO(1803) | [Parent 1803, Main Thread] WARNING: NS_ENSURE_TRUE(Preferences::InitStaticMembers()) failed: file /builds/worker/checkouts/gecko/modules/libpref/Preferences.cpp:4689
[task 2023-03-20T23:08:10.222Z] 23:08:10     INFO - TEST-INFO | Main app process: exit 0
[task 2023-03-20T23:08:10.223Z] 23:08:10     INFO - TEST-INFO | Confirming we saw 25 DOCSHELL created and 25 destroyed log strings.
[task 2023-03-20T23:08:10.223Z] 23:08:10     INFO - TEST-INFO | Confirming we saw 67 DOMWINDOW created and 67 destroyed log strings.
[task 2023-03-20T23:08:10.224Z] 23:08:10    ERROR - TEST-UNEXPECTED-FAIL | browser/components/migration/tests/browser/browser_entrypoint_telemetry.js | leaked 1 window(s) until shutdown [url = about:blank]
[task 2023-03-20T23:08:10.225Z] 23:08:10    ERROR - TEST-UNEXPECTED-FAIL | browser/components/migration/tests/browser/browser_entrypoint_telemetry.js | leaked 1 window(s) until shutdown [url = chrome://browser/content/migration/migration.xhtml]
[task 2023-03-20T23:08:10.225Z] 23:08:10     INFO - TEST-INFO | browser/components/migration/tests/browser/browser_entrypoint_telemetry.js | windows(s) leaked: [pid = 1803] [serial = 29], [pid = 1803] [serial = 28]
[task 2023-03-20T23:08:10.226Z] 23:08:10    ERROR - TEST-UNEXPECTED-FAIL | browser/components/migration/tests/browser/browser_entrypoint_telemetry.js | leaked 1 docShell(s) until shutdown
[task 2023-03-20T23:08:10.227Z] 23:08:10     INFO - TEST-INFO | browser/components/migration/tests/browser/browser_entrypoint_telemetry.js | docShell(s) leaked: [pid = 1803] [id = 11]
[task 2023-03-20T23:08:10.227Z] 23:08:10     INFO - TEST-INFO | browser/components/migration/tests/browser/browser_entrypoint_telemetry.js | This test created 0 hidden window(s)
[task 2023-03-20T23:08:10.228Z] 23:08:10     INFO - TEST-INFO | browser/components/migration/tests/browser/browser_entrypoint_telemetry.js | This test created 1 hidden docshell(s)
[task 2023-03-20T23:08:10.228Z] 23:08:10     INFO - runtests.py | Application ran for: 0:01:18.770457
```