Bug: Intermittent TEST-UNEXPECTED-TIMEOUT | browser/components/shell/test/browser_633221.js | application timed out after 370 seconds with no output
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2021-05-26 23:46:39+00:00
Resolved: 2022-01-11 17:06:16+00:00

**Filed by:** imoraru [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=340895038&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/YSB331S3RZ6cYeqiIgsrZg/runs/1/artifacts/public/logs/live_backing.log

---
```
[task 2021-05-26T23:05:37.462Z] 23:05:37     INFO - TEST-START | browser/components/shell/test/browser_633221.js
[task 2021-05-26T23:11:47.472Z] 23:11:47     INFO - Buffered messages finished
[task 2021-05-26T23:11:47.473Z] 23:11:47    ERROR - TEST-UNEXPECTED-TIMEOUT | browser/components/shell/test/browser_633221.js | application timed out after 370 seconds with no output
[task 2021-05-26T23:11:47.473Z] 23:11:47    ERROR - Force-terminating active process(es).
[task 2021-05-26T23:11:47.473Z] 23:11:47     INFO - Determining child pids from psutil...
[task 2021-05-26T23:11:47.481Z] 23:11:47     INFO - [3752, 3777, 3830, 3867, 3906, 3907]
[task 2021-05-26T23:11:47.481Z] 23:11:47     INFO - ==> process 3685 launched child process 3700
[task 2021-05-26T23:11:47.481Z] 23:11:47     INFO - ==> process 3685 launched child process 3752
[task 2021-05-26T23:11:47.481Z] 23:11:47     INFO - ==> process 3685 launched child process 3777
[task 2021-05-26T23:11:47.482Z] 23:11:47     INFO - ==> process 3685 launched child process 3830
[task 2021-05-26T23:11:47.482Z] 23:11:47     INFO - ==> process 3685 launched child process 3867
[task 2021-05-26T23:11:47.482Z] 23:11:47     INFO - Found child pids: {3777, 3906, 3907, 3752, 3700, 3830, 3867}
[task 2021-05-26T23:11:47.482Z] 23:11:47     INFO - Failed to get child procs
[task 2021-05-26T23:11:47.483Z] 23:11:47     INFO - Killing process: 3777
[task 2021-05-26T23:11:47.483Z] 23:11:47     INFO - TEST-INFO | started process screentopng
[task 2021-05-26T23:11:47.715Z] 23:11:47     INFO - TEST-INFO | screentopng: exit 0
[task 2021-05-26T23:11:47.716Z] 23:11:47     INFO - Can't trigger Breakpad, just killing process
[task 2021-05-26T23:12:17.739Z] 23:12:17     INFO - failed to kill pid 3777 after 30s
[task 2021-05-26T23:12:17.740Z] 23:12:17     INFO - Killing process: 3906
[task 2021-05-26T23:12:17.740Z] 23:12:17     INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-05-26T23:12:17.740Z] 23:12:17     INFO - Can't trigger Breakpad, just killing process
[task 2021-05-26T23:12:17.741Z] 23:12:17     INFO - Error: Failed to kill process 3906: psutil.NoSuchProcess no process found with pid 3906
[task 2021-05-26T23:12:17.742Z] 23:12:17     INFO - Killing process: 3907
[task 2021-05-26T23:12:17.742Z] 23:12:17     INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-05-26T23:12:17.743Z] 23:12:17     INFO - Can't trigger Breakpad, just killing process
[task 2021-05-26T23:12:17.773Z] 23:12:17     INFO - psutil found pid 3907 dead
[task 2021-05-26T23:12:17.777Z] 23:12:17     INFO - Killing process: 3752
[task 2021-05-26T23:12:17.778Z] 23:12:17     INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-05-26T23:12:17.778Z] 23:12:17     INFO - Can't trigger Breakpad, just killing process
[task 2021-05-26T23:12:35.069Z] 23:12:35     INFO - psutil found pid 3752 dead
<...>
[task 2021-05-26T23:13:29.526Z] 23:13:29     INFO - GECKO(4019) | 1622070809524	Marionette	DEBUG	1 -> [0,6,"WebDriver:ExecuteScript",{"script":"/* This Source Code Form is subject to the terms of the Mozilla Public\n * License, ... hrome","testUrl":"about:blank"}],"newSandbox":true,"sandbox":"default","line":1935,"filename":"tests/mochitest/runtests.py"}]
[task 2021-05-26T23:13:29.569Z] 23:13:29     INFO - GECKO(4019) | 1622070809568	Marionette	TRACE	[7] MarionetteCommands actor created for window id 2
[task 2021-05-26T23:13:29.612Z] 23:13:29     INFO - GECKO(4019) | 1622070809608	Marionette	TRACE	[24] MarionetteEvents actor created for window id 4294967297
[task 2021-05-26T23:13:29.795Z] 23:13:29     INFO - GECKO(4019) | 1622070809793	Marionette	TRACE	Received observer notification toplevel-window-ready
[task 2021-05-26T23:13:29.815Z] 23:13:29     INFO - GECKO(4019) | 1622070809814	Marionette	DEBUG	1 <- [1,6,null,{"value":null}]
[task 2021-05-26T23:13:29.827Z] 23:13:29     INFO - GECKO(4019) | 1622070809825	Marionette	DEBUG	1 -> [0,7,"Marionette:SetContext",{"value":"content"}]
[task 2021-05-26T23:13:29.831Z] 23:13:29     INFO - GECKO(4019) | 1622070809828	Marionette	DEBUG	1 <- [1,7,null,{"value":null}]
[task 2021-05-26T23:13:29.971Z] 23:13:29     INFO - GECKO(4019) | 1622070809969	Marionette	TRACE	[24] MarionetteEvents actor created for window id 4294967298
[task 2021-05-26T23:13:30.056Z] 23:13:30     INFO - GECKO(4019) | 1622070810054	Marionette	DEBUG	1 -> [0,8,"WebDriver:DeleteSession",{}]
[task 2021-05-26T23:13:30.066Z] 23:13:30     INFO - GECKO(4019) | 1622070810065	Marionette	DEBUG	1 <- [1,8,null,{"value":null}]
[task 2021-05-26T23:13:30.246Z] 23:13:30     INFO - GECKO(4019) | JavaScript error: , line 0: NotFoundError: No such JSWindowActor 'MarionetteEvents'
[task 2021-05-26T23:13:30.248Z] 23:13:30     INFO - GECKO(4019) | JavaScript error: , line 0: NotFoundError: No such JSWindowActor 'MarionetteEvents'
[task 2021-05-26T23:13:30.266Z] 23:13:30     INFO - runtests.py | Waiting for browser...
[task 2021-05-26T23:13:30.352Z] 23:13:30     INFO - GECKO(4019) | 1622070810351	Marionette	DEBUG	Closed connection 1
[task 2021-05-26T23:13:30.512Z] 23:13:30     INFO - GECKO(4019) | 1622070810510	Marionette	TRACE	[39] MarionetteEvents actor created for window id 6442450945
[task 2021-05-26T23:13:30.580Z] 23:13:30     INFO - GECKO(4019) | JavaScript error: , line 0: NotFoundError: No such JSWindowActor 'MarionetteEvents'
[task 2021-05-26T23:13:31.239Z] 23:13:31     INFO - *** Start BrowserChrome Test Results ***
[task 2021-05-26T23:13:31.421Z] 23:13:31     INFO - checking window state
[task 2021-05-26T23:13:31.615Z] 23:13:31     INFO - TEST-START | browser/components/syncedtabs/test/browser/browser_sidebar_syncedtabslist.js
```