Bug: Intermittent browser/components/sessionstore/test/browser_undoCloseById.js | Test timed out -
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2021-07-21 11:21:47+00:00
Resolved: 2021-08-17 17:03:00+00:00

**Filed by:** imoraru [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=345867802&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/Pp46XlGyTLO_yuiKP3utDw/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2021-07-21T10:41:25.091Z] 10:41:25     INFO - TEST-START | browser/components/sessionstore/test/browser_undoCloseById.js
[task 2021-07-21T10:43:31.764Z] 10:43:31     INFO - TEST-INFO | started process screentopng
[task 2021-07-21T10:52:34.689Z] 10:52:34     INFO - TEST-INFO | screentopng: exit 0
[task 2021-07-21T10:52:34.817Z] 10:52:34     INFO - Buffered messages logged at 10:41:25
[task 2021-07-21T10:52:34.818Z] 10:52:34     INFO - Entering test bound test_undoCloseById
[task 2021-07-21T10:52:34.818Z] 10:52:34     INFO - Buffered messages logged at 10:41:28
[task 2021-07-21T10:52:34.818Z] 10:52:34     INFO - TEST-PASS | browser/components/sessionstore/test/browser_undoCloseById.js | The last closed object is a tab - 
[task 2021-07-21T10:52:34.818Z] 10:52:34     INFO - Buffered messages finished
[task 2021-07-21T10:52:34.818Z] 10:52:34     INFO - TEST-UNEXPECTED-FAIL | browser/components/sessionstore/test/browser_undoCloseById.js | Test timed out - 
[task 2021-07-21T10:52:34.819Z] 10:52:34     INFO - Buffered messages finished
[task 2021-07-21T10:52:34.819Z] 10:52:34    ERROR - TEST-UNEXPECTED-TIMEOUT | browser/components/sessionstore/test/browser_undoCloseById.js | application timed out after 370 seconds with no output
[task 2021-07-21T10:52:34.819Z] 10:52:34    ERROR - Force-terminating active process(es).
[task 2021-07-21T10:52:34.820Z] 10:52:34     INFO - Determining child pids from psutil...
[task 2021-07-21T10:52:35.229Z] 10:52:35     INFO - [1641, 1664, 1721, 1758, 1788, 1818, 1905, 1932, 2049, 2143, 2169]
[task 2021-07-21T10:52:35.247Z] 10:52:35     INFO - ==> process 1574 launched child process 1589
[task 2021-07-21T10:52:35.247Z] 10:52:35     INFO - ==> process 1574 launched child process 1641
[task 2021-07-21T10:52:35.247Z] 10:52:35     INFO - ==> process 1574 launched child process 1664
[task 2021-07-21T10:52:35.247Z] 10:52:35     INFO - ==> process 1574 launched child process 1721
[task 2021-07-21T10:52:35.247Z] 10:52:35     INFO - ==> process 1574 launched child process 1758
[task 2021-07-21T10:52:35.247Z] 10:52:35     INFO - ==> process 1574 launched child process 1788
[task 2021-07-21T10:52:35.247Z] 10:52:35     INFO - ==> process 1574 launched child process 1818
[task 2021-07-21T10:52:35.247Z] 10:52:35     INFO - ==> process 1574 launched child process 1905
[task 2021-07-21T10:52:35.247Z] 10:52:35     INFO - ==> process 1574 launched child process 2049
[task 2021-07-21T10:52:35.247Z] 10:52:35     INFO - ==> process 1574 launched child process 2143
[task 2021-07-21T10:52:35.247Z] 10:52:35     INFO - ==> process 1574 launched child process 2169
[task 2021-07-21T10:52:35.247Z] 10:52:35     INFO - Found child pids: {1664, 2049, 2169, 1641, 1932, 1905, 1589, 1721, 1818, 1788, 1758, 2143}
[task 2021-07-21T10:52:35.274Z] 10:52:35     INFO - Failed to get child procs
[task 2021-07-21T10:52:35.275Z] 10:52:35     INFO - Killing process: 1664
[task 2021-07-21T10:52:35.275Z] 10:52:35     INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-07-21T10:52:35.275Z] 10:52:35     INFO - Can't trigger Breakpad, just killing process
[task 2021-07-21T10:53:13.803Z] 10:53:13     INFO - failed to kill pid 1664 after 30s
<...>
```