Bug: Intermittent browser/components/sessionstore/test/browser_background_tab_crash.js | leaked 1 window(s) until shutdown [url = about:blank]
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2021-08-06 19:17:13+00:00
Resolved: 2021-11-16 17:00:18+00:00

**Filed by:** cbrindusan [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=347675342&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/L87rdX-kSnWydSnjs84nug/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2021-08-06T18:01:10.957Z] 18:01:10     INFO - TEST-START | browser/components/sessionstore/test/browser_background_tab_crash.js
[task 2021-08-06T18:01:11.023Z] 18:01:11     INFO - GECKO(5016) | [Parent 9028: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 2466fc25c00 == 22 [pid = 9028] [id = 210]
[task 2021-08-06T18:01:11.023Z] 18:01:11     INFO - GECKO(5016) | [Parent 9028: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 53 (2466fcd4740) [pid = 9028] [serial = 504] [outer = 0]
[task 2021-08-06T18:01:11.024Z] 18:01:11     INFO - GECKO(5016) | [Parent 9028: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 54 (2467c638400) [pid = 9028] [serial = 505] [outer = 2466fcd4740]
[task 2021-08-06T18:01:11.028Z] 18:01:11     INFO - GECKO(5016) | [Parent 9028, Main Thread] WARNING: '!wc', file /builds/worker/checkouts/gecko/dom/base/ThirdPartyUtil.cpp:226
[task 2021-08-06T18:01:11.029Z] 18:01:11     INFO - GECKO(5016) | [Parent 9028, Main Thread] WARNING: '!wc', file /builds/worker/checkouts/gecko/dom/base/ThirdPartyUtil.cpp:226
[task 2021-08-06T18:01:11.029Z] 18:01:11     INFO - GECKO(5016) | [Parent 9028, Main Thread] WARNING: '!wc', file /builds/worker/checkouts/gecko/dom/base/ThirdPartyUtil.cpp:226
[task 2021-08-06T18:01:11.058Z] 18:01:11     INFO - GECKO(5016) | [Parent 9028: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 55 (24684a79000) [pid = 9028] [serial = 506] [outer = 2466fcd4740]
[task 2021-08-06T18:01:11.070Z] 18:01:11     INFO - GECKO(5016) | [Parent 9028, Main Thread] WARNING: 'aOwner->IsDiscarded()', file /builds/worker/workspace/obj-build/dist/include/mozilla/dom/SyncedContextInlines.h:92
[task 2021-08-06T18:01:11.083Z] 18:01:11     INFO - GECKO(5016) | [Parent 9028: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 54 (2467c317c00) [pid = 9028] [serial = 468] [outer = 0] [url = about:robots]
[task 2021-08-06T18:01:11.084Z] 18:01:11     INFO - GECKO(5016) | [Parent 9028: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 53 (2468468d800) [pid = 9028] [serial = 467] [outer = 0] [url = about:blank]
[task 2021-08-06T18:01:11.110Z] 18:01:11     INFO - GECKO(5016) | [Child 8832: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 3 (1ba34f9a400) [pid = 8832] [serial = 116] [outer = 0] [url = about:blank]
[task 2021-08-06T18:01:11.111Z] 18:01:11     INFO - GECKO(5016) | [Child 8832: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 2 (1ba2e2b6c00) [pid = 8832] [serial = 115] [outer = 0] [url = about:blank]
[task 2021-08-06T18:01:11.111Z] 18:01:11     INFO - GECKO(5016) | [Child 8832: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 1ba2e227000 == 0 [pid = 8832] [id = 45] [url = about:blank]
[task 2021-08-06T18:01:11.127Z] 18:01:11     INFO - GECKO(5016) | [Child 8832: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 1 (1ba347c0900) [pid = 8832] [serial = 117] [outer = 0] [url = about:blank]
[task 2021-08-06T18:01:11.176Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 1c534b8ac00 == 5 [pid = 9012] [id = 154]
[task 2021-08-06T18:01:11.177Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 33 (1c534b2ae40) [pid = 9012] [serial = 380] [outer = 0]
[task 2021-08-06T18:01:11.178Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 34 (1c534b90800) [pid = 9012] [serial = 381] [outer = 1c534b2ae40]
[task 2021-08-06T18:01:11.215Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 33 (1c52de98800) [pid = 9012] [serial = 342] [outer = 0] [url = about:blank]
[task 2021-08-06T18:01:11.215Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 32 (1c5343aa000) [pid = 9012] [serial = 345] [outer = 0] [url = about:blank]
[task 2021-08-06T18:01:11.216Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 31 (1c536346800) [pid = 9012] [serial = 340] [outer = 0] [url = http://example.com/]
[task 2021-08-06T18:01:11.217Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 30 (1c536b84000) [pid = 9012] [serial = 358] [outer = 0] [url = https://example.com/]
[task 2021-08-06T18:01:11.217Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 29 (1c534b85400) [pid = 9012] [serial = 347] [outer = 0] [url = about:blank]
[task 2021-08-06T18:01:11.218Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 28 (1c536b7f400) [pid = 9012] [serial = 353] [outer = 0] [url = http://example.com/browser/browser/components/sessionstore/test/file_async_duplicate_tab.html#]
[task 2021-08-06T18:01:11.218Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 27 (1c536b8c400) [pid = 9012] [serial = 365] [outer = 0] [url = about:blank]
[task 2021-08-06T18:01:11.219Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 26 (1c536b8d000) [pid = 9012] [serial = 367] [outer = 0] [url = about:blank]
[task 2021-08-06T18:01:11.220Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 25 (1c53634b800) [pid = 9012] [serial = 360] [outer = 0] [url = about:blank]
[task 2021-08-06T18:01:11.220Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 24 (1c534b84800) [pid = 9012] [serial = 343] [outer = 0] [url = http://example.com/]
[task 2021-08-06T18:01:11.221Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 23 (1c536348000) [pid = 9012] [serial = 355] [outer = 0] [url = about:blank]
[task 2021-08-06T18:01:11.221Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 22 (1c53634a400) [pid = 9012] [serial = 350] [outer = 0] [url = http://example.com/browser/browser/components/sessionstore/test/file_async_duplicate_tab.html#]
[task 2021-08-06T18:01:11.221Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 21 (1c53633f800) [pid = 9012] [serial = 352] [outer = 0] [url = about:blank]
[task 2021-08-06T18:01:11.222Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 20 (1c534b8a400) [pid = 9012] [serial = 364] [outer = 0] [url = about:blank]
[task 2021-08-06T18:01:11.222Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 19 (1c534b8a800) [pid = 9012] [serial = 349] [outer = 0] [url = about:blank]
[task 2021-08-06T18:01:11.223Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 18 (1c536349400) [pid = 9012] [serial = 357] [outer = 0] [url = about:blank]
[task 2021-08-06T18:01:11.223Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 1c537764400 == 4 [pid = 9012] [id = 150] [url = https://example.com/]
[task 2021-08-06T18:01:11.224Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 1c52dea0c00 == 3 [pid = 9012] [id = 151] [url = https://example.com/]
[task 2021-08-06T18:01:11.224Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 1c5343aa400 == 2 [pid = 9012] [id = 152] [url = about:blank][task 2021-08-06T18:01:11.227Z] 18:01:11     INFO - GECKO(5016) | [Child 10060: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 26 (1b25f678000) [pid = 10060] [serial = 235] [outer = 0] [url = http://example.com/browser/browser/components/sessionstore/test/file_async_flushes.html]
[task 2021-08-06T18:01:11.228Z] 18:01:11     INFO - GECKO(5016) | [Child 10060: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 25 (1b25f679c00) [pid = 10060] [serial = 238] [outer = 0] [url = http://example.com/browser/browser/components/sessionstore/test/file_async_flushes.html]
[task 2021-08-06T18:01:11.229Z] 18:01:11     INFO - GECKO(5016) | [Child 10060: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 24 (1b25e180c00) [pid = 10060] [serial = 227] [outer = 0] [url = about:blank]
[task 2021-08-06T18:01:11.229Z] 18:01:11     INFO - GECKO(5016) | [Child 10060: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 23 (1b2573b6c00) [pid = 10060] [serial = 223] [outer = 0] [url = about:blank]
[task 2021-08-06T18:01:11.230Z] 18:01:11     INFO - GECKO(5016) | [Child 10060: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 22 (1b25e176800) [pid = 10060] [serial = 231] [outer = 0] [url = about:blank]
[task 2021-08-06T18:01:11.231Z] 18:01:11     INFO - GECKO(5016) | [Child 10060: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 21 (1b25dabe400) [pid = 10060] [serial = 229] [outer = 0] [url = about:blank]
[task 2021-08-06T18:01:11.232Z] 18:01:11     INFO - GECKO(5016) | [Child 10060: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 20 (1b25f66e400) [pid = 10060] [serial = 234] [outer = 0] [url = about:blank]
[task 2021-08-06T18:01:11.232Z] 18:01:11     INFO - GECKO(5016) | [Child 10060: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 19 (1b25f672c00) [pid = 10060] [serial = 232] [outer = 0] [url = http://example.com/browser/browser/components/sessionstore/test/file_async_duplicate_tab.html]
[task 2021-08-06T18:01:11.233Z] 18:01:11     INFO - GECKO(5016) | [Child 10060: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 18 (1b25f672800) [pid = 10060] [serial = 237] [outer = 0] [url = about:blank]
[task 2021-08-06T18:01:11.234Z] 18:01:11     INFO - GECKO(5016) | [Child 10060: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 17 (1b25dabd800) [pid = 10060] [serial = 224] [outer = 0] [url = about:blank]
[task 2021-08-06T18:01:11.234Z] 18:01:11     INFO - GECKO(5016) | [Child 10060: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 16 (1b2573bf800) [pid = 10060] [serial = 226] [outer = 0] [url = about:blank]
[task 2021-08-06T18:01:11.235Z] 18:01:11     INFO - GECKO(5016) | [Child 10060: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 1b25f673800 == 4 [pid = 10060] [id = 87] [url = about:blank]
[task 2021-08-06T18:01:11.235Z] 18:01:11     INFO - GECKO(5016) | [Child 10060: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 1b2573ae000 == 3 [pid = 10060] [id = 88] [url = http://example.com/]
[task 2021-08-06T18:01:11.235Z] 18:01:11     INFO - GECKO(5016) | [Child 10060: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 1b25f66cc00 == 2 [pid = 10060] [id = 91] [url = about:blank]
[task 2021-08-06T18:01:11.236Z] 18:01:11     INFO - GECKO(5016) | [Child 10060: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 1b25dabc000 == 1 [pid = 10060] [id = 89] [url = about:blank]
[task 2021-08-06T18:01:11.236Z] 18:01:11     INFO - GECKO(5016) | [Child 10060: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 1b25f676400 == 0 [pid = 10060] [id = 90] [url = http://example.com/]
[task 2021-08-06T18:01:11.283Z] 18:01:11     INFO - GECKO(5016) | [Child 9012, Main Thread] WARNING: NS_ENSURE_TRUE(info) failed: file /builds/worker/checkouts/gecko/extensions/permissions/PermissionDelegateHandler.cpp:348
[task 2021-08-06T18:01:11.285Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 19 (1c534b81800) [pid = 9012] [serial = 382] [outer = 1c534b2ae40]
[task 2021-08-06T18:01:11.376Z] 18:01:11     INFO - GECKO(5016) | [Child 10060: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 15 (1b25e1ae740) [pid = 10060] [serial = 249] [outer = 0] [url = http://example.com/]
[task 2021-08-06T18:01:11.377Z] 18:01:11     INFO - GECKO(5016) | [Child 10060: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 14 (1b260c10900) [pid = 10060] [serial = 239] [outer = 0] [url = about:blank]
[task 2021-08-06T18:01:11.377Z] 18:01:11     INFO - GECKO(5016) | [Child 10060: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 13 (1b25dac3900) [pid = 10060] [serial = 241] [outer = 0] [url = http://example.com/]
[task 2021-08-06T18:01:11.378Z] 18:01:11     INFO - GECKO(5016) | [Child 10060: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 12 (1b260c10c80) [pid = 10060] [serial = 253] [outer = 0] [url = about:blank]
[task 2021-08-06T18:01:11.378Z] 18:01:11     INFO - GECKO(5016) | [Child 10060: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 11 (1b25e1423c0) [pid = 10060] [serial = 245] [outer = 0] [url = http://example.com/]
[task 2021-08-06T18:01:11.488Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 1c534b8fc00 == 3 [pid = 9012] [id = 155]
[task 2021-08-06T18:01:11.488Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 20 (1c534b26200) [pid = 9012] [serial = 383] [outer = 0]
[task 2021-08-06T18:01:11.489Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 21 (1c536346000) [pid = 9012] [serial = 384] [outer = 1c534b26200]
[task 2021-08-06T18:01:11.596Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 22 (1c53634bc00) [pid = 9012] [serial = 385] [outer = 1c534b26200]
[task 2021-08-06T18:01:11.714Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 21 (1c534b26740) [pid = 9012] [serial = 376] [outer = 0] [url = about:blank]
[task 2021-08-06T18:01:11.714Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 20 (1c5343b5740) [pid = 9012] [serial = 373] [outer = 0] [url = https://example.com/]
[task 2021-08-06T18:01:11.715Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 19 (1c536b2e3c0) [pid = 9012] [serial = 370] [outer = 0] [url = https://example.com/]
[task 2021-08-06T18:01:11.716Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 18 (1c537751ac0) [pid = 9012] [serial = 366] [outer = 0] [url = about:blank]
[task 2021-08-06T18:01:11.716Z] 18:01:11     INFO - GECKO(5016) | [Child 9012: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 17 (1c534b2aac0) [pid = 9012] [serial = 359] [outer = 0] [url = https://example.com/]
[task 2021-08-06T18:01:11.863Z] 18:01:11     INFO - GECKO(5016) | [Parent 9028: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 24688eb0c00 == 21 [pid = 9028] [id = 198] [url = about:blank]
[task 2021-08-06T18:01:12.113Z] 18:01:12     INFO - GECKO(5016) | Et tu, Brute?[task 2021-08-06T18:01:12.113Z] 18:01:12     INFO - GECKO(5016) | XPCOM_MEM_BLOAT_LOG: C:\Users\task_1628271891\AppData\Local\Temp\tmpbb59o6v5.mozrunner\runtests_leaks.log
[task 2021-08-06T18:01:12.114Z] 18:01:12     INFO - GECKO(5016) | Writing to log: C:\Users\task_1628271891\AppData\Local\Temp\tmpbb59o6v5.mozrunner\runtests_leaks_tab_pid9012.log
[task 2021-08-06T18:01:12.313Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028, IPC I/O Parent] WARNING: [1.1]: Ignoring message 'EVENT_MESSAGE' to unknown peer ACEE5A0DCE53251F.55AB010BFA6568AE: file /builds/worker/checkouts/gecko/ipc/glue/NodeController.cpp:289
[task 2021-08-06T18:01:12.314Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028, IPC I/O Parent] WARNING: [1.1]: Ignoring message 'EVENT_MESSAGE' to unknown peer ACEE5A0DCE53251F.55AB010BFA6568AE: file /builds/worker/checkouts/gecko/ipc/glue/NodeController.cpp:289
[task 2021-08-06T18:01:12.315Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028, IPC I/O Parent] WARNING: [1.1]: Ignoring message 'EVENT_MESSAGE' to unknown peer ACEE5A0DCE53251F.55AB010BFA6568AE: file /builds/worker/checkouts/gecko/ipc/glue/NodeController.cpp:289
[task 2021-08-06T18:01:12.316Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028, IPC I/O Parent] WARNING: [1.1]: Ignoring message 'EVENT_MESSAGE' to unknown peer ACEE5A0DCE53251F.55AB010BFA6568AE: file /builds/worker/checkouts/gecko/ipc/glue/NodeController.cpp:289
[task 2021-08-06T18:01:12.316Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028, IPC I/O Parent] WARNING: [1.1]: Ignoring message 'EVENT_MESSAGE' to unknown peer ACEE5A0DCE53251F.55AB010BFA6568AE: file /builds/worker/checkouts/gecko/ipc/glue/NodeController.cpp:289
[task 2021-08-06T18:01:12.318Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028, IPC I/O Parent] WARNING: [1.1]: Ignoring message 'EVENT_MESSAGE' to unknown peer ACEE5A0DCE53251F.55AB010BFA6568AE: file /builds/worker/checkouts/gecko/ipc/glue/NodeController.cpp:289
[task 2021-08-06T18:01:12.318Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028, IPC I/O Parent] WARNING: [1.1]: Ignoring message 'EVENT_MESSAGE' to unknown peer ACEE5A0DCE53251F.55AB010BFA6568AE: file /builds/worker/checkouts/gecko/ipc/glue/NodeController.cpp:289
[task 2021-08-06T18:01:12.319Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028, IPC I/O Parent] WARNING: [1.1]: Ignoring message 'EVENT_MESSAGE' to unknown peer ACEE5A0DCE53251F.55AB010BFA6568AE: file /builds/worker/checkouts/gecko/ipc/glue/NodeController.cpp:289
[task 2021-08-06T18:01:12.320Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028, IPC I/O Parent] WARNING: [1.1]: Rejecting introduction request from 'F8E8467F2AEF6ADC.78C989E233A5947' for unknown peer 'ACEE5A0DCE53251F.55AB010BFA6568AE': file /builds/worker/checkouts/gecko/ipc/glue/NodeController.cpp:527
[task 2021-08-06T18:01:12.321Z] 18:01:12     INFO - GECKO(5016) | [GPU 3488, IPC I/O Child] WARNING: [F8E8467F2AEF6ADC.78C989E233A5947]: Could not be introduced to peer ACEE5A0DCE53251F.55AB010BFA6568AE: file /builds/worker/checkouts/gecko/ipc/glue/NodeController.cpp:458
[task 2021-08-06T18:01:12.322Z] 18:01:12     INFO - GECKO(5016) | [GPU 3488, Compositor] WARNING: bad Shmem: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:486
[task 2021-08-06T18:01:12.322Z] 18:01:12     INFO - GECKO(5016) | [GPU 3488, Compositor] WARNING: bad Shmem: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:486
[task 2021-08-06T18:01:12.323Z] 18:01:12     INFO - GECKO(5016) | [GPU 3488, Compositor] WARNING: bad Shmem: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:486
[task 2021-08-06T18:01:12.323Z] 18:01:12     INFO - GECKO(5016) | [GPU 3488, Compositor] WARNING: bad Shmem: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:486
[task 2021-08-06T18:01:12.557Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 2468400ac00 == 20 [pid = 9028] [id = 204] [url = about:blank]
[task 2021-08-06T18:01:12.588Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-08-06T18:01:12.588Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-08-06T18:01:12.589Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028, Main Thread] WARNING: No build ID mismatch: file /builds/worker/checkouts/gecko/dom/base/nsFrameLoader.cpp:3810
[task 2021-08-06T18:01:12.589Z] 18:01:12     INFO - GECKO(5016) | ###!!! [Parent][MessageChannel] Error: (msgtype=0x39008C,name=PContent::Msg_FlushTabState) Channel error: cannot send/recv
[task 2021-08-06T18:01:12.590Z] 18:01:12     INFO - GECKO(5016) | ###!!! [Parent][MessageChannel] Error: (msgtype=0x390145,name=PContent::Msg_CommitBrowsingContextTransaction) Channel error: cannot send/recv
[task 2021-08-06T18:01:12.590Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 2466fc2cc00 == 21 [pid = 9028] [id = 211]
[task 2021-08-06T18:01:12.590Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 54 (2467c2da3c0) [pid = 9028] [serial = 507] [outer = 0]
[task 2021-08-06T18:01:12.591Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 55 (2466fc4d000) [pid = 9028] [serial = 508] [outer = 2467c2da3c0]
[task 2021-08-06T18:01:12.595Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028, Main Thread] WARNING: '!wc', file /builds/worker/checkouts/gecko/dom/base/ThirdPartyUtil.cpp:226
[task 2021-08-06T18:01:12.595Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028, Main Thread] WARNING: '!wc', file /builds/worker/checkouts/gecko/dom/base/ThirdPartyUtil.cpp:226
[task 2021-08-06T18:01:12.595Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028, Main Thread] WARNING: '!wc', file /builds/worker/checkouts/gecko/dom/base/ThirdPartyUtil.cpp:226
[task 2021-08-06T18:01:12.608Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-08-06T18:01:12.609Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-08-06T18:01:12.609Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028, Main Thread] WARNING: No build ID mismatch: file /builds/worker/checkouts/gecko/dom/base/nsFrameLoader.cpp:3810
[task 2021-08-06T18:01:12.610Z] 18:01:12     INFO - GECKO(5016) | ###!!! [Parent][MessageChannel] Error: (msgtype=0x39008C,name=PContent::Msg_FlushTabState) Channel error: cannot send/recv
[task 2021-08-06T18:01:12.610Z] 18:01:12     INFO - GECKO(5016) | ###!!! [Parent][MessageChannel] Error: (msgtype=0x390145,name=PContent::Msg_CommitBrowsingContextTransaction) Channel error: cannot send/recv
[task 2021-08-06T18:01:12.611Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 2467bf45400 == 22 [pid = 9028] [id = 212]
[task 2021-08-06T18:01:12.611Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 56 (24682cf8ac0) [pid = 9028] [serial = 509] [outer = 0]
[task 2021-08-06T18:01:12.611Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 57 (2467bf4ac00) [pid = 9028] [serial = 510] [outer = 24682cf8ac0]
[task 2021-08-06T18:01:12.614Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028, Main Thread] WARNING: '!wc', file /builds/worker/checkouts/gecko/dom/base/ThirdPartyUtil.cpp:226
[task 2021-08-06T18:01:12.615Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028, Main Thread] WARNING: '!wc', file /builds/worker/checkouts/gecko/dom/base/ThirdPartyUtil.cpp:226
[task 2021-08-06T18:01:12.615Z] 18:01:12     INFO - GECKO(5016) | [Parent 9028, Main Thread] WARNING: '!wc', file /builds/worker/checkouts/gecko/dom/base/ThirdPartyUtil.cpp:226[task 2021-08-06T18:05:32.082Z] 18:05:32     INFO - GECKO(5016) | [Child 10060, Main Thread] WARNING: Extra shutdown CC: 'i < NORMAL_SHUTDOWN_COLLECTIONS', file /builds/worker/checkouts/gecko/xpcom/base/nsCycleCollector.cpp:3357
[task 2021-08-06T18:05:32.085Z] 18:05:32     INFO - GECKO(5016) | [Parent 9028, IPDL Background] WARNING: idb: '0.000000s: starting', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3709
[task 2021-08-06T18:05:32.086Z] 18:05:32     INFO - GECKO(5016) | [Parent 9028, IPDL Background] WARNING: idb: '0.000000s: Live database entry removed', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3709
[task 2021-08-06T18:05:32.087Z] 18:05:32     INFO - GECKO(5016) | [Parent 9028, IPDL Background] WARNING: idb: '0.000000s: gLiveDatabaseHashtable entry removed', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3709
[task 2021-08-06T18:05:32.088Z] 18:05:32     INFO - GECKO(5016) | [Parent 9028, IPDL Background] WARNING: idb: '0.000000s: Live database entry removed', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3709
[task 2021-08-06T18:05:32.088Z] 18:05:32     INFO - GECKO(5016) | [Parent 9028, IPDL Background] WARNING: idb: '0.000000s: gLiveDatabaseHashtable entry removed', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3709
[task 2021-08-06T18:05:32.089Z] 18:05:32     INFO - GECKO(5016) | [Parent 9028, IPDL Background] WARNING: idb: '0.000000s: Live database entry removed', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3709
[task 2021-08-06T18:05:32.090Z] 18:05:32     INFO - GECKO(5016) | [Parent 9028, IPDL Background] WARNING: idb: '0.000000s: Live database entry removed', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3709
[task 2021-08-06T18:05:32.090Z] 18:05:32     INFO - GECKO(5016) | [Parent 9028, IPDL Background] WARNING: idb: '0.000000s: gLiveDatabaseHashtable entry removed', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3709
[task 2021-08-06T18:05:32.091Z] 18:05:32     INFO - GECKO(5016) | [Parent 9028, IPDL Background] WARNING: idb: '0.000000s: Live database entry removed', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3709
[task 2021-08-06T18:05:32.093Z] 18:05:32     INFO - GECKO(5016) | [Parent 9028, IPDL Background] WARNING: idb: '0.000000s: gLiveD[Child 3164, atabaseMain Thread] WARHNashtablING: Exte entry rra shutdowemoved',n CC: file /builds/worker/checkou 'i < NORMAL_SHUTDOWN_COLLECTIONS', file /btuilds/worker/checskouts/gecko/xpco/m/base/nsCycleColglector.ecko/dom/qucpp:3357
[task 2021-08-06T18:05:32.093Z] 18:05:32     INFO - GECKO(5016) | ota/ActorsParent.cpp:3709
[task 2021-08-06T18:05:32.093Z] 18:05:32     INFO - GECKO(5016) | [Parent 9028, IPDL Background] WARNING: cache: '0.000000s: starting', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3709
[task 2021-08-06T18:05:32.094Z] 18:05:32     INFO - GECKO(5016) | [Parent 9028, IPDL Background] WARNING: sdb: '0.000000s: starting', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3709
[task 2021-08-06T18:05:32.095Z] 18:05:32     INFO - GECKO(5016) | [Parent 9028, IPDL Background] WARNING: ls: '0.000000s: starting', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3709
[task 2021-08-06T18:05:32.095Z] 18:05:32     INFO - GECKO(5016) | [Parent 9028, IPDL Background] WARNING: idb: '0.000000s: completed', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3709
[task 2021-08-06T18:05:32.096Z] 18:05:32     INFO - GECKO(5016) | [Parent 9028, IPDL Background] WARNING: cache: '0.000000s: completed', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3709
[task 2021-08-06T18:05:32.097Z] 18:05:32     INFO - GECKO(5016) | [Parent 9028, IPDL Background] WARNING: sdb: '0.000000s: completed', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3709
[task 2021-08-06T18:05:32.097Z] 18:05:32     INFO - GECKO(5016) | [Parent 9028, IPDL Background] WARNING: ls: '0.000000s: completed', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3709
[task 2021-08-06T18:05:32.099Z] 18:05:32     INFO - GECKO(5016) | [Child 10060, Main Thread] WARNING: NS_ENSURE_TRUE(Preferences::InitStaticMembers()) failed: file /builds/worker/checkouts/gecko/modules/libpref/Preferences.cpp:4438
[task 2021-08-06T18:05:32.111Z] 18:05:32     INFO - GECKO(5016) | [Child 3164, Main Thread] WARNING: NS_ENSURE_TRUE(Preferences::InitStaticMembers()) failed: file /builds/worker/checkouts/gecko/modules/libpref/Preferences.cpp:4438
[task 2021-08-06T18:05:32.376Z] 18:05:32     INFO - GECKO(5016) | ###!!! [Parent][RunMessage] Error: Channel closing: too late to send/recv, messages will be lost
[task 2021-08-06T18:05:32.461Z] 18:05:32     INFO - GECKO(5016) | [GPU 3488, Main Thread] WARNING: NS_ENSURE_TRUE(Preferences::InitStaticMembers()) failed: file /builds/worker/checkouts/gecko/modules/libpref/Preferences.cpp:4438
[task 2021-08-06T18:05:33.109Z] 18:05:33     INFO - GECKO(5016) | [Parent 9028: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 9 (2467c63e000) [pid = 9028] [serial = 4] [outer = 0] [url = about:blank]
[task 2021-08-06T18:05:33.109Z] 18:05:33     INFO - GECKO(5016) | [Parent 9028: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 8 (2466fcd4c80) [pid = 9028] [serial = 3] [outer = 0] [url = chrome://browser/content/browser.xhtml]
[task 2021-08-06T18:05:33.110Z] 18:05:33     INFO - GECKO(5016) | [Parent 9028: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 7 (24681150740) [pid = 9028] [serial = 12] [outer = 0] [url = chrome://mochikit/content/browser-harness.xhtml]
[task 2021-08-06T18:05:33.110Z] 18:05:33     INFO - GECKO(5016) | [Parent 9028: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 6 (24686385400) [pid = 9028] [serial = 13] [outer = 0] [url = about:blank]
[task 2021-08-06T18:05:33.111Z] 18:05:33     INFO - GECKO(5016) | [Parent 9028: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 5 (2467c30d580) [pid = 9028] [serial = 5] [outer = 0] [url = chrome://extensions/content/dummy.xhtml]
[task 2021-08-06T18:05:33.111Z] 18:05:33     INFO - GECKO(5016) | [Parent 9028: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 4 (24681936000) [pid = 9028] [serial = 6] [outer = 0] [url = chrome://extensions/content/dummy.xhtml]
[task 2021-08-06T18:05:33.112Z] 18:05:33     INFO - GECKO(5016) | [Parent 9028: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 3 (24682cf8740) [pid = 9028] [serial = 9] [outer = 0] [url = resource://gre-resources/hiddenWindow.html]
[task 2021-08-06T18:05:33.112Z] 18:05:33     INFO - GECKO(5016) | [Parent 9028: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 2 (2466fc29400) [pid = 9028] [serial = 1155] [outer = 0] [url = about:blank]
[task 2021-08-06T18:05:33.112Z] 18:05:33     INFO - GECKO(5016) | [Parent 9028: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 1 (2467c30d740) [pid = 9028] [serial = 7] [outer = 0] [url = about:blank]
[task 2021-08-06T18:05:33.118Z] 18:05:33     INFO - GECKO(5016) | [Parent 9028: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 0 (24682e11400) [pid = 9028] [serial = 11] [outer = 0] [url = resource://gre-resources/hiddenWindow.html]
[task 2021-08-06T18:05:33.134Z] 18:05:33     INFO - GECKO(5016) | [Parent 9028, Main Thread] WARNING: Extra shutdown CC: 'i < NORMAL_SHUTDOWN_COLLECTIONS', file /builds/worker/checkouts/gecko/xpcom/base/nsCycleCollector.cpp:3357
[task 2021-08-06T18:05:33.201Z] 18:05:33     INFO - GECKO(5016) | [Parent 9028, Main Thread] WARNING: NS_ENSURE_TRUE(Preferences::InitStaticMembers()) failed: file /builds/worker/checkouts/gecko/modules/libpref/Preferences.cpp:4438
[task 2021-08-06T18:05:33.254Z] 18:05:33     INFO - TEST-INFO | Main app process: exit 0
[task 2021-08-06T18:05:33.255Z] 18:05:33     INFO - TEST-INFO | Confirming we saw 1626 DOCSHELL created and 1565 destroyed log strings.
[task 2021-08-06T18:05:33.255Z] 18:05:33     INFO - TEST-INFO | Confirming we saw 4222 DOMWINDOW created and 3992 destroyed log strings.
[task 2021-08-06T18:05:33.256Z] 18:05:33    ERROR - TEST-UNEXPECTED-FAIL | browser/components/sessionstore/test/browser_background_tab_crash.js | leaked 1 window(s) until shutdown [url = about:blank]
```