Bug: Intermittent TEST-UNEXPECTED-TIMEOUT | browser/components/preferences/tests/browser_privacypane_3.js | application timed out after 370 seconds with no output
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2021-02-13 15:07:16+00:00
Resolved: 2021-08-31 17:04:24+00:00

**Filed by:** btara [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=329885799&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/cLOQaCkrQYS882ltdN9dLA/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2021-02-13T13:19:23.076Z] 13:19:23     INFO - TEST-START | browser/components/preferences/tests/browser_privacypane_3.js
[task 2021-02-13T13:19:23.192Z] 13:19:23     INFO - GECKO(1559) | Waiting for browser load
[task 2021-02-13T13:19:23.193Z] 13:19:23     INFO - GECKO(1559) | Waiting for browser state change
[task 2021-02-13T13:19:23.329Z] 13:19:23     INFO - GECKO(1559) | Saw state 110001 and status 0
[task 2021-02-13T13:19:26.803Z] 13:19:26     INFO - GECKO(1559) | Saw state 110001 and status 0
[task 2021-02-13T13:19:26.996Z] 13:19:26     INFO - GECKO(1559) | Saw state c0010 and status 0
[task 2021-02-13T13:19:26.996Z] 13:19:26     INFO - GECKO(1559) | Browser got expected state change about:preferences
[task 2021-02-13T13:19:28.018Z] 13:19:28     INFO - GECKO(1559) | Waiting for browser load
[task 2021-02-13T13:19:28.019Z] 13:19:28     INFO - GECKO(1559) | Waiting for browser state change
[task 2021-02-13T13:19:28.736Z] 13:19:28     INFO - GECKO(1559) | Saw state 110001 and status 0
[task 2021-02-13T13:19:31.235Z] 13:19:31     INFO - GECKO(1559) | Saw state 110001 and status 0
[task 2021-02-13T13:19:31.395Z] 13:19:31     INFO - GECKO(1559) | Saw state c0010 and status 0
[task 2021-02-13T13:19:31.396Z] 13:19:31     INFO - GECKO(1559) | Browser got expected state change about:preferences
[task 2021-02-13T13:19:32.341Z] 13:19:32     INFO - GECKO(1559) | Waiting for browser load
[task 2021-02-13T13:19:32.341Z] 13:19:32     INFO - GECKO(1559) | Waiting for browser state change
[task 2021-02-13T13:19:32.481Z] 13:19:32     INFO - GECKO(1559) | Saw state 110001 and status 0
[task 2021-02-13T13:19:35.571Z] 13:19:35     INFO - GECKO(1559) | Saw state 110001 and status 0
[task 2021-02-13T13:19:35.984Z] 13:19:35     INFO - GECKO(1559) | Saw state c0010 and status 0
[task 2021-02-13T13:19:35.984Z] 13:19:35     INFO - GECKO(1559) | Browser got expected state change about:preferences
[task 2021-02-13T13:19:37.450Z] 13:19:37     INFO - GECKO(1559) | Waiting for browser load
[task 2021-02-13T13:19:37.452Z] 13:19:37     INFO - GECKO(1559) | Waiting for browser state change
[task 2021-02-13T13:19:37.790Z] 13:19:37     INFO - GECKO(1559) | Saw state 110001 and status 0
[task 2021-02-13T13:19:42.193Z] 13:19:42     INFO - GECKO(1559) | Saw state 110001 and status 0
[task 2021-02-13T13:19:42.617Z] 13:19:42     INFO - GECKO(1559) | Saw state c0010 and status 0
[task 2021-02-13T13:19:42.619Z] 13:19:42     INFO - GECKO(1559) | Browser got expected state change about:preferences
[task 2021-02-13T13:19:44.469Z] 13:19:44     INFO - GECKO(1559) | Waiting for browser load
[task 2021-02-13T13:19:44.471Z] 13:19:44     INFO - GECKO(1559) | Waiting for browser state change
[task 2021-02-13T13:19:44.902Z] 13:19:44     INFO - GECKO(1559) | Saw state 110001 and status 0
[task 2021-02-13T13:19:48.488Z] 13:19:48     INFO - GECKO(1559) | Saw state 110001 and status 0
[task 2021-02-13T13:19:49.323Z] 13:19:49     INFO - GECKO(1559) | Saw state c0010 and status 0
[task 2021-02-13T13:19:49.325Z] 13:19:49     INFO - GECKO(1559) | Browser got expected state change about:preferences
[task 2021-02-13T13:19:51.383Z] 13:19:51     INFO - GECKO(1559) | Waiting for browser load
[task 2021-02-13T13:19:51.385Z] 13:19:51     INFO - GECKO(1559) | Waiting for browser state change
[task 2021-02-13T13:19:52.065Z] 13:19:52     INFO - GECKO(1559) | Saw state 110001 and status 0
[task 2021-02-13T13:19:55.272Z] 13:19:55     INFO - GECKO(1559) | Saw state 110001 and status 0
[task 2021-02-13T13:19:55.831Z] 13:19:55     INFO - GECKO(1559) | Saw state c0010 and status 0
[task 2021-02-13T13:19:55.832Z] 13:19:55     INFO - GECKO(1559) | Browser got expected state change about:preferences
[task 2021-02-13T13:19:57.465Z] 13:19:57     INFO - GECKO(1559) | Waiting for browser load
[task 2021-02-13T13:19:57.467Z] 13:19:57     INFO - GECKO(1559) | Waiting for browser state change
[task 2021-02-13T13:19:58.486Z] 13:19:58     INFO - GECKO(1559) | Saw state 110001 and status 0
[task 2021-02-13T13:20:01.521Z] 13:20:01     INFO - GECKO(1559) | Saw state 110001 and status 0
[task 2021-02-13T13:20:01.905Z] 13:20:01     INFO - GECKO(1559) | Saw state c0010 and status 0
[task 2021-02-13T13:20:01.907Z] 13:20:01     INFO - GECKO(1559) | Browser got expected state change about:preferences
[task 2021-02-13T13:20:04.283Z] 13:20:04     INFO - GECKO(1559) | Waiting for browser load
[task 2021-02-13T13:20:04.285Z] 13:20:04     INFO - GECKO(1559) | Waiting for browser state change
[task 2021-02-13T13:20:04.953Z] 13:20:04     INFO - GECKO(1559) | Saw state 110001 and status 0
[task 2021-02-13T13:26:15.133Z] 13:26:15     INFO - Buffered messages logged at 13:19:23
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - subset: test_custom_retention_fn,test_custom_retention_fn,test_custom_retention_fn,test_custom_retention_fn,test_historymode_retention_fn,test_custom_retention_fn,test_custom_retention_fn
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - 
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Entering test bound bound runTestOnPrivacyPrefPane
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - runTestOnPrivacyPrefPane entered
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Buffered messages logged at 13:19:27
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - loaded about:preferences
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - viewing privacy pane, executing testFunc
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Leaving test bound bound runTestOnPrivacyPrefPane
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Entering test bound bound runTestOnPrivacyPrefPane
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - runTestOnPrivacyPrefPane entered
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Buffered messages logged at 13:19:31
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - loaded about:preferences
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Buffered messages logged at 13:19:32
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - viewing privacy pane, executing testFunc
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - TEST-PASS | browser/components/preferences/tests/browser_privacypane_3.js | history mode menulist should exist - 
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - TEST-PASS | browser/components/preferences/tests/browser_privacypane_3.js | history mode is expected to remain remember - 
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - TEST-PASS | browser/components/preferences/tests/browser_privacypane_3.js | the control to change should exist - 
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Leaving test bound bound runTestOnPrivacyPrefPane
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Entering test bound bound runTestOnPrivacyPrefPane
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - runTestOnPrivacyPrefPane entered
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Buffered messages logged at 13:19:36
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - loaded about:preferences
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - viewing privacy pane, executing testFunc
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - TEST-PASS | browser/components/preferences/tests/browser_privacypane_3.js | history mode menulist should exist - 
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - TEST-PASS | browser/components/preferences/tests/browser_privacypane_3.js | history mode is expected to remain custom - 
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - TEST-PASS | browser/components/preferences/tests/browser_privacypane_3.js | the control to change should exist - 
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Buffered messages logged at 13:19:37
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Leaving test bound bound runTestOnPrivacyPrefPane
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Entering test bound bound runTestOnPrivacyPrefPane
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - runTestOnPrivacyPrefPane entered
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Buffered messages logged at 13:19:42
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - loaded about:preferences
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Buffered messages logged at 13:19:43
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - viewing privacy pane, executing testFunc
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - TEST-PASS | browser/components/preferences/tests/browser_privacypane_3.js | history mode menulist should exist - 
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - TEST-PASS | browser/components/preferences/tests/browser_privacypane_3.js | history mode is expected to remain custom - 
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - TEST-PASS | browser/components/preferences/tests/browser_privacypane_3.js | the control to change should exist - 
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Buffered messages logged at 13:19:44
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Leaving test bound bound runTestOnPrivacyPrefPane
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Entering test bound bound runTestOnPrivacyPrefPane
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - runTestOnPrivacyPrefPane entered
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Buffered messages logged at 13:19:49
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - loaded about:preferences
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Buffered messages logged at 13:19:50
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - viewing privacy pane, executing testFunc
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - TEST-PASS | browser/components/preferences/tests/browser_privacypane_3.js | history mode menulist should exist - 
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - TEST-PASS | browser/components/preferences/tests/browser_privacypane_3.js | history mode is expected to remain custom - 
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - TEST-PASS | browser/components/preferences/tests/browser_privacypane_3.js | the control to change should exist - 
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Buffered messages logged at 13:19:51
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Leaving test bound bound runTestOnPrivacyPrefPane
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Entering test bound bound runTestOnPrivacyPrefPane
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - runTestOnPrivacyPrefPane entered
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Buffered messages logged at 13:19:56
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - loaded about:preferences
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - viewing privacy pane, executing testFunc
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - TEST-PASS | browser/components/preferences/tests/browser_privacypane_3.js | history mode menulist should exist - 
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - TEST-PASS | browser/components/preferences/tests/browser_privacypane_3.js | history mode is expected to remain custom - 
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Buffered messages logged at 13:19:57
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Leaving test bound bound runTestOnPrivacyPrefPane
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Entering test bound bound runTestOnPrivacyPrefPane
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - runTestOnPrivacyPrefPane entered
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Buffered messages logged at 13:20:02
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - loaded about:preferences
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Buffered messages logged at 13:20:03
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - viewing privacy pane, executing testFunc
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - TEST-PASS | browser/components/preferences/tests/browser_privacypane_3.js | history mode menulist should exist - 
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - TEST-PASS | browser/components/preferences/tests/browser_privacypane_3.js | history mode is expected to remain remember - 
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - TEST-PASS | browser/components/preferences/tests/browser_privacypane_3.js | the control to change should exist - 
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Leaving test bound bound runTestOnPrivacyPrefPane
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Entering test bound bound runTestOnPrivacyPrefPane
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - runTestOnPrivacyPrefPane entered
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Buffered messages finished
[task 2021-02-13T13:26:15.142Z] 13:26:15    ERROR - TEST-UNEXPECTED-TIMEOUT | browser/components/preferences/tests/browser_privacypane_3.js | application timed out after 370 seconds with no output
[task 2021-02-13T13:26:15.142Z] 13:26:15    ERROR - Force-terminating active process(es).
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - Determining child pids from psutil...
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - [1623, 1648, 1707, 1739, 1776, 1805, 1837]
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - ==> process 1559 launched child process 1574
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - ==> process 1559 launched child process 1623
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - ==> process 1559 launched child process 1648
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - ==> process 1559 launched child process 1707
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - ==> process 1559 launched child process 1739
[task 2021-02-13T13:26:15.142Z] 13:26:15     INFO - ==> process 1559 launched child process 1776
[task 2021-02-13T13:26:15.143Z] 13:26:15     INFO - ==> process 1559 launched child process 1805
[task 2021-02-13T13:26:15.143Z] 13:26:15     INFO - Found child pids: set([1776, 1739, 1574, 1707, 1805, 1837, 1648, 1623])
[task 2021-02-13T13:26:15.143Z] 13:26:15     INFO - Failed to get child procs
[task 2021-02-13T13:26:15.143Z] 13:26:15     INFO - Killing process: 1776
[task 2021-02-13T13:26:15.143Z] 13:26:15     INFO - TEST-INFO | started process screentopng
[task 2021-02-13T13:28:04.175Z] 13:28:04     INFO - TEST-INFO | screentopng: exit 0
[task 2021-02-13T13:28:04.190Z] 13:28:04     INFO - Can't trigger Breakpad, just killing process
[task 2021-02-13T13:28:39.031Z] 13:28:37     INFO - failed to kill pid 1776 after 30s
[task 2021-02-13T13:28:56.231Z] 13:28:53     INFO - Killing process: 1739
[task 2021-02-13T13:29:15.509Z] 13:29:13     INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-02-13T13:29:59.480Z] 13:29:57     INFO - Can't trigger Breakpad, just killing process
[task 2021-02-13T13:46:41.394Z] 13:46:41     INFO - Automation Error: mozprocess timed out after 1000 seconds running ['/builds/worker/workspace/build/venv/bin/python', '-u', '/builds/worker/workspace/build/tests/mochitest/runtests.py', u'browser/components/preferences/tests/browser.ini', '--setpref=media.peerconnection.mtransport_process=false', '--setpref=network.process.enabled=false', '--appname=/builds/worker/workspace/build/application/firefox/firefox', '--utility-path=tests/bin', '--extra-profile-file=tests/bin/plugins', u'--symbols-path=https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/RsxfF6egR8S-OJfEZspVYg/artifacts/public/build/target.crashreporter-symbols.zip', '--certificate-path=tests/certs', '--setpref=webgl.force-enabled=true', '--quiet', '--log-raw=/builds/worker/workspace/build/blobber_upload_dir/mochitest-browser-chrome_raw.log', '--log-errorsummary=/builds/worker/workspace/build/blobber_upload_dir/mochitest-browser-chrome_errorsummary.log', '--use-test-media-devices', '--screenshot-on-fail', '--cleanup-crashes', '--marionette-startup-timeout=180', '--sandbox-read-whitelist=/builds/worker/workspace/build', '--log-raw=-', '--flavor=browser', '--chunk-by-runtime']
[task 2021-02-13T13:46:41.409Z] 13:46:41    ERROR - timed out after 1000 seconds of no output
[task 2021-02-13T13:46:41.409Z] 13:46:41    ERROR - Return code: -15
[task 2021-02-13T13:46:41.409Z] 13:46:41    ERROR - No suite end message was emitted by this harness.
[task 2021-02-13T13:46:41.409Z] 13:46:41     INFO - TinderboxPrint: mochitest-mochitest-browser-chrome<br/>169/0/0
[task 2021-02-13T13:46:41.409Z] 13:46:41    ERROR - # TBPL FAILURE #
[task 2021-02-13T13:46:41.409Z] 13:46:41  WARNING - setting return code to 2
[task 2021-02-13T13:46:41.409Z] 13:46:41    ERROR - The mochitest suite: mochitest-browser-chrome ran with return status: FAILURE
[task 2021-02-13T13:46:41.409Z] 13:46:41     INFO - Running post-action listener: _package_coverage_data
[task 2021-02-13T13:46:41.409Z] 13:46:41     INFO - Running post-action listener: _resource_record_post_action
[task 2021-02-13T13:46:41.409Z] 13:46:41     INFO - Running post-action listener: process_java_coverage_data
[task 2021-02-13T13:46:41.409Z] 13:46:41     INFO - [mozharness: 2021-02-13 13:46:41.295249Z] Finished run-tests step (success)```