Bug: Intermittent TEST-UNEXPECTED-TIMEOUT | browser/components/preferences/tests/browser_subdialogs.js | application timed out after 370 seconds with no output
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2021-02-15 23:21:11+00:00
Resolved: 2022-04-05 17:06:22+00:00

**Filed by:** btara [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=330045066&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/Mqvv7iSUSZuauMT6AhMVSQ/runs/2/artifacts/public/logs/live_backing.log

---
```
[task 2021-02-15T22:20:30.076Z] 22:20:30     INFO - TEST-START | browser/components/preferences/tests/browser_subdialogs.js
[task 2021-02-15T22:26:55.440Z] 22:26:55     INFO - Buffered messages logged at 22:20:30
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - Entering test bound test_initialize
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - Buffered messages logged at 22:20:35
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - Leaving test bound test_initialize
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - Entering test bound check_titlebar_focus_returnval_titlechanges_accepting
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - waiting for subdialog DOMFrameContentLoaded
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - Buffered messages logged at 22:20:36
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - waiting for subdialog load
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - Buffered messages logged at 22:20:41
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - subdialog window is loaded
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - TEST-PASS | browser/components/preferences/tests/browser_subdialogs.js | The dialog should be non-null - true == true - 
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - TEST-PASS | browser/components/preferences/tests/browser_subdialogs.js | Subdialog URL should not be about:blank - "chrome://mochitests/content/browser/browser/components/preferences/tests/subdialog.xhtml" != "about:blank" - 
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - TEST-PASS | browser/components/preferences/tests/browser_subdialogs.js | Overlay should be visible - "visible" == "visible" - 
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - TEST-PASS | browser/components/preferences/tests/browser_subdialogs.js | No stylesheets that were expected are missing - 0 == 0 - 
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - Buffered messages logged at 22:20:42
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - TEST-PASS | browser/components/preferences/tests/browser_subdialogs.js | Title should be correct initially - "Sample sub-dialog" == "Sample sub-dialog" - 
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - TEST-PASS | browser/components/preferences/tests/browser_subdialogs.js | Textbox with correct text is focused - "Default text" == "Default text" - 
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - waiting for DOMTitleChanged event
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - Buffered messages logged at 22:20:43
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - TEST-PASS | browser/components/preferences/tests/browser_subdialogs.js | subdialog should have updated title - "Updated title" == "Updated title" - 
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - waiting for dialogclosing
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - URI chrome://mochitests/content/browser/browser/components/preferences/tests/subdialog.xhtml
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - Buffered messages logged at 22:20:44
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - Waiting for subdialog unload
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - TEST-PASS | browser/components/preferences/tests/browser_subdialogs.js | overlay is not visible - "" != "visible" - 
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - TEST-PASS | browser/components/preferences/tests/browser_subdialogs.js | inline styles should be cleared - "" == "" - 
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - TEST-PASS | browser/components/preferences/tests/browser_subdialogs.js | closing event should indicate button was 'accept' - "accept" == "accept" - 
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - TEST-PASS | browser/components/preferences/tests/browser_subdialogs.js | should be 1 if accepted, 0 if canceled, undefined if closed w/out button - 1 == 1 - 
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - TEST-PASS | browser/components/preferences/tests/browser_subdialogs.js | dialog count should decrease by 1 - 0 == 0 - 
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - TEST-PASS | browser/components/preferences/tests/browser_subdialogs.js | stack children count should decrease by 1 - 1 == 1 - 
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - Leaving test bound check_titlebar_focus_returnval_titlechanges_accepting
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - Entering test bound check_canceling_dialog
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - Buffered messages logged at 22:20:45
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - waiting for subdialog DOMFrameContentLoaded
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - Buffered messages finished
[task 2021-02-15T22:26:55.449Z] 22:26:55    ERROR - TEST-UNEXPECTED-TIMEOUT | browser/components/preferences/tests/browser_subdialogs.js | application timed out after 370 seconds with no output
[task 2021-02-15T22:26:55.449Z] 22:26:55    ERROR - Force-terminating active process(es).
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - Determining child pids from psutil...
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - [1635, 1660, 1719, 1750, 1787, 1817, 1819]
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - ==> process 1570 launched child process 1585
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - ==> process 1570 launched child process 1635
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - ==> process 1570 launched child process 1660
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - ==> process 1570 launched child process 1719
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - ==> process 1570 launched child process 1750
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - ==> process 1570 launched child process 1787
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - ==> process 1570 launched child process 1819
[task 2021-02-15T22:26:55.449Z] 22:26:55     INFO - Found child pids: set([1635, 1819, 1585, 1750, 1719, 1817, 1787, 1660])
[task 2021-02-15T22:26:55.453Z] 22:26:55     INFO - Failed to get child procs
[task 2021-02-15T22:26:55.453Z] 22:26:55     INFO - Killing process: 1635
[task 2021-02-15T22:26:55.461Z] 22:26:55     INFO - TEST-INFO | started process screentopng
[task 2021-02-15T22:29:16.212Z] 22:29:16     INFO - TEST-INFO | screentopng: exit 0
```