Bug: Intermittent TEST-UNEXPECTED-TIMEOUT | browser/components/sessionstore/test/browser_duplicate_history.js | application timed out after 370 seconds with no output
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2021-02-23 10:23:30+00:00
Resolved: 2021-04-06 17:04:00+00:00

**Filed by:** csabou [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=330875575&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/FDfMl5XmRfukXobGusIzFw/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2021-02-23T09:50:53.727Z] 09:50:53     INFO - TEST-OK | browser/components/sessionstore/test/browser_docshell_uuid_consistency.js | took 2791ms
[task 2021-02-23T09:50:53.803Z] 09:50:53     INFO - checking window state
[task 2021-02-23T09:50:53.864Z] 09:50:53     INFO - TEST-START | browser/components/sessionstore/test/browser_duplicate_history.js
[task 2021-02-23T09:57:17.846Z] 09:57:15     INFO - Buffered messages logged at 09:50:53
[task 2021-02-23T09:57:24.657Z] 09:57:22     INFO - Entering test bound 
[task 2021-02-23T09:57:31.426Z] 09:57:30     INFO - Buffered messages finished
[task 2021-02-23T09:57:39.855Z] 09:57:37    ERROR - TEST-UNEXPECTED-TIMEOUT | browser/components/sessionstore/test/browser_duplicate_history.js | application timed out after 370 seconds with no output
[task 2021-02-23T09:57:43.518Z] 09:57:41    ERROR - Force-terminating active process(es).
[task 2021-02-23T09:57:59.664Z] 09:57:57     INFO - Determining child pids from psutil...
[task 2021-02-23T10:01:16.950Z] 10:01:15     INFO - [1651, 1709, 1739, 1627, 1775, 1812]
[task 2021-02-23T10:01:29.651Z] 10:01:28     INFO - ==> process 1564 launched child process 1579
[task 2021-02-23T10:01:39.166Z] 10:01:37     INFO - ==> process 1564 launched child process 1627
[task 2021-02-23T10:01:46.039Z] 10:01:43     INFO - ==> process 1564 launched child process 1651
[task 2021-02-23T10:01:54.200Z] 10:01:52     INFO - ==> process 1564 launched child process 1709
[task 2021-02-23T10:02:06.761Z] 10:02:04     INFO - ==> process 1564 launched child process 1739
[task 2021-02-23T10:02:14.058Z] 10:02:12     INFO - ==> process 1564 launched child process 1775
[task 2021-02-23T10:02:21.531Z] 10:02:20     INFO - ==> process 1564 launched child process 1812
[task 2021-02-23T10:02:24.690Z] 10:02:23     INFO - Found child pids: set([1579, 1739, 1709, 1775, 1651, 1812, 1627])
[task 2021-02-23T10:02:42.361Z] 10:02:40     INFO - Failed to get child procs
[task 2021-02-23T10:02:45.724Z] 10:02:44     INFO - Killing process: 1579
[task 2021-02-23T10:02:54.686Z] 10:02:53     INFO - TEST-INFO | started process screentopng
[task 2021-02-23T10:19:33.784Z] 10:19:33     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/sessionstore/test/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/H-oIq5UUTJW5Qbi1Z88R6w/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 2021-02-23T10:19:33.798Z] 10:19:33    ERROR - timed out after 1000 seconds of no output
[task 2021-02-23T10:19:33.798Z] 10:19:33    ERROR - Return code: -15
[task 2021-02-23T10:19:33.798Z] 10:19:33    ERROR - No suite end message was emitted by this harness.
[task 2021-02-23T10:19:33.798Z] 10:19:33     INFO - TinderboxPrint: mochitest-mochitest-browser-chrome<br/>125/0/0
[task 2021-02-23T10:19:33.798Z] 10:19:33    ERROR - # TBPL FAILURE #
[task 2021-02-23T10:19:33.798Z] 10:19:33  WARNING - setting return code to 2
[task 2021-02-23T10:19:33.798Z] 10:19:33    ERROR - The mochitest suite: mochitest-browser-chrome ran with return status: FAILURE```