Bug: Intermittent TV browser/components/preferences/tests/browser_connection.js | leaked 2 window(s) until shutdown [url = about:preferences]
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2021-07-16 20:59:34+00:00
Resolved: 2021-08-10 17:02:06+00:00

**Filed by:** abutkovits [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=345469223&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/BRp9JeVbQ8qlfm3kMungLQ/runs/0/artifacts/public/logs/live_backing.log
**Reftest URL:** https://hg.mozilla.org/mozilla-central/raw-file/tip/layout/tools/reftest/reftest-analyzer.xhtml#logurl=https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/BRp9JeVbQ8qlfm3kMungLQ/runs/0/artifacts/public/logs/live_backing.log&only_show_unexpected=1

---
```
[task 2021-07-16T19:35:42.236Z] 19:35:42     INFO - TEST-START | Shutdown
[task 2021-07-16T19:35:42.237Z] 19:35:42     INFO - Browser Chrome Test Summary
[task 2021-07-16T19:35:42.237Z] 19:35:42     INFO - Passed:  230
[task 2021-07-16T19:35:42.237Z] 19:35:42     INFO - Failed:  0
[task 2021-07-16T19:35:42.238Z] 19:35:42     INFO - Todo:    0
[task 2021-07-16T19:35:42.238Z] 19:35:42     INFO - Mode:    e10s
[task 2021-07-16T19:35:42.239Z] 19:35:42     INFO - *** End BrowserChrome Test Results ***
[task 2021-07-16T19:35:42.320Z] 19:35:42     INFO - GECKO(5838) | [Child 5849, Main Thread] WARNING: '!CanSend() || !mManager || !mManager->CanSend()', file /builds/worker/checkouts/gecko/dom/ipc/jsactor/JSWindowActorChild.cpp:40
[task 2021-07-16T19:35:42.321Z] 19:35:42     INFO - GECKO(5838) | [Child 5849, Main Thread] WARNING: '!CanSend() || !mManager || !mManager->CanSend()', file /builds/worker/checkouts/gecko/dom/ipc/jsactor/JSWindowActorChild.cpp:40
[task 2021-07-16T19:35:42.347Z] 19:35:42     INFO - GECKO(5838) | [Child 5849, Main Thread] WARNING: '!CanSend() || !mManager || !mManager->CanSend()', file /builds/worker/checkouts/gecko/dom/ipc/jsactor/JSWindowActorChild.cpp:40
[task 2021-07-16T19:35:42.454Z] 19:35:42     INFO - GECKO(5838) | [Child 5849, Main Thread] WARNING: '!CanSend() || !mManager || !mManager->CanSend()', file /builds/worker/checkouts/gecko/dom/ipc/jsactor/JSWindowActorChild.cpp:40
[task 2021-07-16T19:35:42.591Z] 19:35:42     INFO - GECKO(5838) | [Child 5849, Main Thread] WARNING: '!CanSend() || !mManager || !mManager->CanSend()', file /builds/worker/checkouts/gecko/dom/ipc/jsactor/JSWindowActorChild.cpp:40
[task 2021-07-16T19:35:42.592Z] 19:35:42     INFO - GECKO(5838) | [Child 5849, Main Thread] WARNING: '!CanSend() || !mManager || !mManager->CanSend()', file /builds/worker/checkouts/gecko/dom/ipc/jsactor/JSWindowActorChild.cpp:40
[task 2021-07-16T19:35:42.803Z] 19:35:42     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 12851c800 == 4 [pid = 5838] [id = 2] [url = chrome://extensions/content/dummy.xhtml]
[task 2021-07-16T19:35:42.811Z] 19:35:42     INFO - GECKO(5838) | [2021-07-16T19:35:42Z WARN  webrender::device::gl] Missing optimized shader source for gpu_cache_update
[task 2021-07-16T19:35:42.916Z] 19:35:42     INFO - GECKO(5838) | [Child 5849: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 122308400 == 3 [pid = 5849] [id = 4] [url = moz-extension://31d90311-a7fd-9c40-9739-6b8772ddcbc4/_generated_background_page.html]
[task 2021-07-16T19:35:42.916Z] 19:35:42     INFO - GECKO(5838) | [Child 5849: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 122306800 == 2 [pid = 5849] [id = 3] [url = moz-extension://77c160e7-f375-554b-af53-9aeacff33610/_generated_background_page.html]
[task 2021-07-16T19:35:42.917Z] 19:35:42     INFO - GECKO(5838) | [Child 5849: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 118f56400 == 1 [pid = 5849] [id = 1] [url = moz-extension://ece55456-ac06-1a43-aa5d-f58159e73ab0/_generated_background_page.html]
[task 2021-07-16T19:35:42.917Z] 19:35:42     INFO - GECKO(5838) | [Child 5849: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 118f52000 == 0 [pid = 5849] [id = 0] [url = moz-extension://9a5ff99d-8755-4b41-8848-bf9e73c76cbf/_generated_background_page.html]
[task 2021-07-16T19:35:44.305Z] 19:35:44     INFO - GECKO(5838) | 1626464144304	Marionette	TRACE	Received observer notification quit-application
[task 2021-07-16T19:35:44.306Z] 19:35:44     INFO - GECKO(5838) | 1626464144305	Marionette	INFO	Stopped listening on port 2828
[task 2021-07-16T19:35:44.306Z] 19:35:44     INFO - GECKO(5838) | 1626464144306	Marionette	DEBUG	Marionette stopped listening
[task 2021-07-16T19:35:44.409Z] 19:35:44     INFO - GECKO(5838) | [2021-07-16T19:35:44Z WARN  webrender::device::gl] Missing optimized shader source for gpu_cache_update
[task 2021-07-16T19:35:44.810Z] 19:35:44     INFO - GECKO(5838) | [Parent 5838, Socket Thread] WARNING: cannot post event if not initialized: file /builds/worker/checkouts/gecko/netwerk/protocol/http/nsHttpConnectionMgr.cpp:196
[task 2021-07-16T19:35:44.811Z] 19:35:44     INFO - GECKO(5838) | [Parent 5838, Socket Thread] WARNING: cannot post event if not initialized: file /builds/worker/checkouts/gecko/netwerk/protocol/http/nsHttpConnectionMgr.cpp:196
[task 2021-07-16T19:35:44.811Z] 19:35:44     INFO - GECKO(5838) | [Parent 5838, Socket Thread] WARNING: cannot post event if not initialized: file /builds/worker/checkouts/gecko/netwerk/protocol/http/nsHttpConnectionMgr.cpp:196
[task 2021-07-16T19:35:44.879Z] 19:35:44     INFO - GECKO(5838) | [Child 5849, Main Thread] WARNING: nsAppShell::Exit() called redundantly: file /builds/worker/checkouts/gecko/widget/cocoa/nsAppShell.mm:762
[task 2021-07-16T19:35:44.887Z] 19:35:44     INFO - GECKO(5838) | JavaScript error: resource:///modules/Interactions.jsm, line 222: NS_ERROR_FAILURE: Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIUserIdleService.removeIdleObserver]
[task 2021-07-16T19:35:44.902Z] 19:35:44     INFO - GECKO(5838) | ###!!! [Parent][RunMessage] Error: Channel closing: too late to send/recv, messages will be lost
[task 2021-07-16T19:35:44.917Z] 19:35:44     INFO - GECKO(5838) | ###!!! [Parent][RunMessage] Error: Channel closing: too late to send/recv, messages will be lost
[task 2021-07-16T19:35:44.984Z] 19:35:44     INFO - GECKO(5838) | [Child 5849: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 7 (118cabe40) [pid = 5849] [serial = 1] [outer = 0] [url = moz-extension://9a5ff99d-8755-4b41-8848-bf9e73c76cbf/_generated_background_page.html]
[task 2021-07-16T19:35:44.985Z] 19:35:44     INFO - GECKO(5838) | [Child 5849: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 6 (118f32200) [pid = 5849] [serial = 3] [outer = 0] [url = moz-extension://ece55456-ac06-1a43-aa5d-f58159e73ab0/_generated_background_page.html]
[task 2021-07-16T19:35:44.985Z] 19:35:44     INFO - GECKO(5838) | [Child 5849: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 5 (118f32900) [pid = 5849] [serial = 7] [outer = 0] [url = moz-extension://77c160e7-f375-554b-af53-9aeacff33610/_generated_background_page.html]
[task 2021-07-16T19:35:44.986Z] 19:35:44     INFO - GECKO(5838) | [Child 5849: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 4 (118f32c80) [pid = 5849] [serial = 9] [outer = 0] [url = moz-extension://31d90311-a7fd-9c40-9739-6b8772ddcbc4/_generated_background_page.html]
[task 2021-07-16T19:35:44.986Z] 19:35:44     INFO - GECKO(5838) | [Child 5849: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 3 (121c5cc00) [pid = 5849] [serial = 15] [outer = 0] [url = moz-extension://31d90311-a7fd-9c40-9739-6b8772ddcbc4/_generated_background_page.html]
[task 2021-07-16T19:35:44.987Z] 19:35:44     INFO - GECKO(5838) | [Child 5849: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 2 (121c5a400) [pid = 5849] [serial = 14] [outer = 0] [url = moz-extension://77c160e7-f375-554b-af53-9aeacff33610/_generated_background_page.html]
[task 2021-07-16T19:35:44.987Z] 19:35:44     INFO - GECKO(5838) | [Child 5849: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 1 (121c55800) [pid = 5849] [serial = 12] [outer = 0] [url = moz-extension://ece55456-ac06-1a43-aa5d-f58159e73ab0/_generated_background_page.html]
[task 2021-07-16T19:35:44.988Z] 19:35:44     INFO - GECKO(5838) | [Child 5849: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 0 (12230c400) [pid = 5849] [serial = 11] [outer = 0] [url = moz-extension://9a5ff99d-8755-4b41-8848-bf9e73c76cbf/_generated_background_page.html]
[task 2021-07-16T19:35:44.989Z] 19:35:44     INFO - GECKO(5838) | [Child 5849, Main Thread] WARNING: Extra shutdown CC: 'i < NORMAL_SHUTDOWN_COLLECTIONS', file /builds/worker/checkouts/gecko/xpcom/base/nsCycleCollector.cpp:3357
[task 2021-07-16T19:35:44.995Z] 19:35:44     INFO - GECKO(5838) | [Parent 5838, Compositor] WARNING: Possibly dropping task posted to updater thread: file /builds/worker/checkouts/gecko/gfx/layers/apz/src/APZUpdater.cpp:370
[task 2021-07-16T19:35:44.996Z] 19:35:44     INFO - GECKO(5838) | [Child 5849, Main Thread] WARNING: NS_ENSURE_TRUE(Preferences::InitStaticMembers()) failed: file /builds/worker/checkouts/gecko/modules/libpref/Preferences.cpp:4438
[task 2021-07-16T19:35:45.252Z] 19:35:45     INFO - GECKO(5838) | [2021-07-16T19:35:45Z WARN  xulstore::persist] tried to remove key that isn't in the store
[task 2021-07-16T19:35:45.253Z] 19:35:45     INFO - GECKO(5838) | [2021-07-16T19:35:45Z WARN  xulstore::persist] tried to remove key that isn't in the store
[task 2021-07-16T19:35:46.383Z] 19:35:46     INFO - GECKO(5838) | [Child 5850, Main Thread] WARNING: nsAppShell::Exit() called redundantly: file /builds/worker/checkouts/gecko/widget/cocoa/nsAppShell.mm:762
[task 2021-07-16T19:35:46.400Z] 19:35:46     INFO - GECKO(5838) | ###!!! [Parent][RunMessage] Error: Channel closing: too late to send/recv, messages will be lost
[task 2021-07-16T19:35:46.409Z] 19:35:46     INFO - GECKO(5838) | ###!!! [Parent][RunMessage] Error: Channel closing: too late to send/recv, messages will be lost
[task 2021-07-16T19:35:46.422Z] 19:35:46     INFO - GECKO(5838) | [Child 5850, Main Thread] WARNING: Extra shutdown CC: 'i < NORMAL_SHUTDOWN_COLLECTIONS', file /builds/worker/checkouts/gecko/xpcom/base/nsCycleCollector.cpp:3357
[task 2021-07-16T19:35:46.423Z] 19:35:46     INFO - GECKO(5838) | [Child 5860, Main Thread] WARNING: nsAppShell::Exit() called redundantly: file /builds/worker/checkouts/gecko/widget/cocoa/nsAppShell.mm:762
[task 2021-07-16T19:35:46.426Z] 19:35:46     INFO - GECKO(5838) | ###!!! [Parent][RunMessage] Error: Channel closing: too late to send/recv, messages will be lost
[task 2021-07-16T19:35:46.432Z] 19:35:46     INFO - GECKO(5838) | [Child 5850, Main Thread] WARNING: NS_ENSURE_TRUE(Preferences::InitStaticMembers()) failed: file /builds/worker/checkouts/gecko/modules/libpref/Preferences.cpp:4438
[task 2021-07-16T19:35:46.433Z] 19:35:46     INFO - GECKO(5838) | ###!!! [Parent][RunMessage] Error: Channel closing: too late to send/recv, messages will be lost
[task 2021-07-16T19:35:46.442Z] 19:35:46     INFO - GECKO(5838) | ###!!! [Parent][RunMessage] Error: Channel closing: too late to send/recv, messages will be lost
[task 2021-07-16T19:35:46.444Z] 19:35:46     INFO - GECKO(5838) | [Child 5855, Main Thread] WARNING: nsAppShell::Exit() called redundantly: file /builds/worker/checkouts/gecko/widget/cocoa/nsAppShell.mm:762
[task 2021-07-16T19:35:46.448Z] 19:35:46     INFO - GECKO(5838) | [Child 5860: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 10e308c00 == 0 [pid = 5860] [id = 5] [url = about:blank]
[task 2021-07-16T19:35:46.462Z] 19:35:46     INFO - GECKO(5838) | [Child 5860: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 1 (10e2aae40) [pid = 5860] [serial = 11] [outer = 0] [url = about:blank]
[task 2021-07-16T19:35:46.462Z] 19:35:46     INFO - GECKO(5838) | [Child 5860: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 0 (10e3f6400) [pid = 5860] [serial = 12] [outer = 0] [url = about:blank]
[task 2021-07-16T19:35:46.463Z] 19:35:46     INFO - GECKO(5838) | [Child 5860, Main Thread] WARNING: Extra shutdown CC: 'i < NORMAL_SHUTDOWN_COLLECTIONS', file /builds/worker/checkouts/gecko/xpcom/base/nsCycleCollector.cpp:3357
[task 2021-07-16T19:35:46.463Z] 19:35:46     INFO - GECKO(5838) | ###!!! [Parent][RunMessage] Error: Channel closing: too late to send/recv, messages will be lost
[task 2021-07-16T19:35:46.464Z] 19:35:46     INFO - GECKO(5838) | [Child 5937, Main Thread] WARNING: nsAppShell::Exit() called redundantly: file /builds/worker/checkouts/gecko/widget/cocoa/nsAppShell.mm:762
[task 2021-07-16T19:35:46.464Z] 19:35:46     INFO - GECKO(5838) | ###!!! [Parent][RunMessage] Error: Channel closing: too late to send/recv, messages will be lost
[task 2021-07-16T19:35:46.472Z] 19:35:46     INFO - GECKO(5838) | [Child 5860, Main Thread] WARNING: NS_ENSURE_TRUE(Preferences::InitStaticMembers()) failed: file /builds/worker/checkouts/gecko/modules/libpref/Preferences.cpp:4438
[task 2021-07-16T19:35:46.479Z] 19:35:46     INFO - GECKO(5838) | ###!!! [Parent][RunMessage] Error: Channel closing: too late to send/recv, messages will be lost
[task 2021-07-16T19:35:46.486Z] 19:35:46     INFO - GECKO(5838) | [Child 5855, Main Thread] WARNING: Extra shutdown CC: 'i < NORMAL_SHUTDOWN_COLLECTIONS', file /builds/worker/checkouts/gecko/xpcom/base/nsCycleCollector.cpp:3357
[task 2021-07-16T19:35:46.491Z] 19:35:46     INFO - GECKO(5838) | [Child 5937, Main Thread] WARNING: Extra shutdown CC: 'i < NORMAL_SHUTDOWN_COLLECTIONS', file /builds/worker/checkouts/gecko/xpcom/base/nsCycleCollector.cpp:3357
[task 2021-07-16T19:35:46.498Z] 19:35:46     INFO - GECKO(5838) | [Child 5855, Main Thread] WARNING: NS_ENSURE_TRUE(Preferences::InitStaticMembers()) failed: file /builds/worker/checkouts/gecko/modules/libpref/Preferences.cpp:4438
[task 2021-07-16T19:35:46.501Z] 19:35:46     INFO - GECKO(5838) | [Child 5937, Main Thread] WARNING: NS_ENSURE_TRUE(Preferences::InitStaticMembers()) failed: file /builds/worker/checkouts/gecko/modules/libpref/Preferences.cpp:4438
[task 2021-07-16T19:35:46.642Z] 19:35:46     INFO - GECKO(5838) | [Parent 5838, IPDL Background] WARNING: idb: '0.000005s: starting', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3689
[task 2021-07-16T19:35:46.649Z] 19:35:46     INFO - GECKO(5838) | [Parent 5838, IPDL Background] WARNING: idb: '0.006972s: Live database entry removed', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3689
[task 2021-07-16T19:35:46.649Z] 19:35:46     INFO - GECKO(5838) | [Parent 5838, IPDL Background] WARNING: idb: '0.006985s: gLiveDatabaseHashtable entry removed', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3689
[task 2021-07-16T19:35:46.650Z] 19:35:46     INFO - GECKO(5838) | [Parent 5838, IPDL Background] WARNING: idb: '0.007861s: Live database entry removed', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3689
[task 2021-07-16T19:35:46.652Z] 19:35:46     INFO - GECKO(5838) | [Parent 5838, IPDL Background] WARNING: idb: '0.010050s: Live database entry removed', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3689
[task 2021-07-16T19:35:46.652Z] 19:35:46     INFO - GECKO(5838) | [Parent 5838, IPDL Background] WARNING: idb: '0.010063s: gLiveDatabaseHashtable entry removed', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3689
[task 2021-07-16T19:35:46.653Z] 19:35:46     INFO - GECKO(5838) | [Parent 5838, IPDL Background] WARNING: idb: '0.010892s: Live database entry removed', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3689
[task 2021-07-16T19:35:46.653Z] 19:35:46     INFO - GECKO(5838) | [Parent 5838, IPDL Background] WARNING: idb: '0.010906s: gLiveDatabaseHashtable entry removed', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3689
[task 2021-07-16T19:35:46.659Z] 19:35:46     INFO - GECKO(5838) | [Parent 5838, IPDL Background] WARNING: idb: '0.016699s: Live database entry removed', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3689
[task 2021-07-16T19:35:46.659Z] 19:35:46     INFO - GECKO(5838) | [Parent 5838, IPDL Background] WARNING: idb: '0.016711s: gLiveDatabaseHashtable entry removed', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3689
[task 2021-07-16T19:35:46.660Z] 19:35:46     INFO - GECKO(5838) | [Parent 5838, IPDL Background] WARNING: cache: '0.017637s: starting', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3689
[task 2021-07-16T19:35:46.660Z] 19:35:46     INFO - GECKO(5838) | [Parent 5838, IPDL Background] WARNING: sdb: '0.017653s: starting', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3689
[task 2021-07-16T19:35:46.660Z] 19:35:46     INFO - GECKO(5838) | [Parent 5838, IPDL Background] WARNING: ls: '0.017660s: starting', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3689
[task 2021-07-16T19:35:46.661Z] 19:35:46     INFO - GECKO(5838) | [Parent 5838, IPDL Background] WARNING: idb: '0.017671s: completed', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3689
[task 2021-07-16T19:35:46.661Z] 19:35:46     INFO - GECKO(5838) | [Parent 5838, IPDL Background] WARNING: cache: '0.017685s: completed', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3689
[task 2021-07-16T19:35:46.662Z] 19:35:46     INFO - GECKO(5838) | [Parent 5838, IPDL Background] WARNING: sdb: '0.017689s: completed', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3689
[task 2021-07-16T19:35:46.662Z] 19:35:46     INFO - GECKO(5838) | [Parent 5838, IPDL Background] WARNING: ls: '0.017693s: completed', file /builds/worker/checkouts/gecko/dom/quota/ActorsParent.cpp:3689
[task 2021-07-16T19:35:46.663Z] 19:35:46     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 110b61400 == 3 [pid = 5838] [id = 4] [url = chrome://mochikit/content/browser-harness.xhtml]
[task 2021-07-16T19:35:46.663Z] 19:35:46     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 129385800 == 2 [pid = 5838] [id = 3] [url = about:blank]
[task 2021-07-16T19:35:46.664Z] 19:35:46     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 126d30800 == 1 [pid = 5838] [id = 0] [url = chrome://browser/content/hiddenWindowMac.xhtml]
[task 2021-07-16T19:35:47.561Z] 19:35:47     INFO - GECKO(5838) | [Parent 5838, Compositor] WARNING: Possibly dropping task posted to updater thread: file /builds/worker/checkouts/gecko/gfx/layers/apz/src/APZUpdater.cpp:370
[task 2021-07-16T19:35:47.586Z] 19:35:47     INFO - GECKO(5838) | [Parent 5838, Main Thread] WARNING: nsAppShell::Exit() called redundantly: file /builds/worker/checkouts/gecko/widget/cocoa/nsAppShell.mm:762
[task 2021-07-16T19:35:47.912Z] 19:35:47     INFO - GECKO(5838) | ###!!! [Parent][RunMessage] Error: Channel closing: too late to send/recv, messages will be lost
[task 2021-07-16T19:35:49.124Z] 19:35:49     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 126e96000 == 0 [pid = 5838] [id = 1] [url = chrome://browser/content/browser.xhtml]
[task 2021-07-16T19:35:52.756Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 45 (1998833c0) [pid = 5838] [serial = 61] [outer = 0] [url = about:preferences]
[task 2021-07-16T19:35:52.757Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 44 (1a200cac0) [pid = 5838] [serial = 65] [outer = 0] [url = chrome://browser/content/preferences/dialogs/connection.xhtml]
[task 2021-07-16T19:35:52.757Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 43 (123bbe040) [pid = 5838] [serial = 51] [outer = 0] [url = about:preferences]
[task 2021-07-16T19:35:52.758Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 42 (1a1d11ac0) [pid = 5838] [serial = 55] [outer = 0] [url = chrome://browser/content/preferences/dialogs/connection.xhtml]
[task 2021-07-16T19:35:52.758Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 41 (110be6ac0) [pid = 5838] [serial = 41] [outer = 0] [url = about:preferences]
[task 2021-07-16T19:35:52.759Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 40 (19dc32c80) [pid = 5838] [serial = 45] [outer = 0] [url = chrome://browser/content/preferences/dialogs/connection.xhtml]
[task 2021-07-16T19:35:52.759Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 39 (19a90d200) [pid = 5838] [serial = 91] [outer = 0] [url = about:preferences]
[task 2021-07-16T19:35:52.760Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 38 (1a137c3c0) [pid = 5838] [serial = 105] [outer = 0] [url = chrome://browser/content/preferences/dialogs/connection.xhtml]
[task 2021-07-16T19:35:52.760Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 37 (19cec3740) [pid = 5838] [serial = 101] [outer = 0] [url = about:preferences]
[task 2021-07-16T19:35:52.761Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 36 (1a1a0b3c0) [pid = 5838] [serial = 95] [outer = 0] [url = chrome://browser/content/preferences/dialogs/connection.xhtml]
[task 2021-07-16T19:35:52.761Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 35 (123bbe200) [pid = 5838] [serial = 71] [outer = 0] [url = about:preferences]
[task 2021-07-16T19:35:52.762Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 34 (1a1e74e40) [pid = 5838] [serial = 85] [outer = 0] [url = chrome://browser/content/preferences/dialogs/connection.xhtml]
[task 2021-07-16T19:35:52.762Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 33 (19d050900) [pid = 5838] [serial = 75] [outer = 0] [url = chrome://browser/content/preferences/dialogs/connection.xhtml]
[task 2021-07-16T19:35:52.763Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 32 (123bbe580) [pid = 5838] [serial = 81] [outer = 0] [url = about:preferences]
[task 2021-07-16T19:35:52.763Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 31 (123bbe3c0) [pid = 5838] [serial = 31] [outer = 0] [url = about:preferences]
[task 2021-07-16T19:35:52.764Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 30 (19cec3200) [pid = 5838] [serial = 35] [outer = 0] [url = chrome://browser/content/preferences/dialogs/connection.xhtml]
[task 2021-07-16T19:35:52.764Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 29 (199883580) [pid = 5838] [serial = 21] [outer = 0] [url = about:preferences]
[task 2021-07-16T19:35:52.764Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 28 (19dd73ac0) [pid = 5838] [serial = 25] [outer = 0] [url = chrome://browser/content/preferences/dialogs/connection.xhtml]
[task 2021-07-16T19:35:52.767Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 27 (1275e2000) [pid = 5838] [serial = 4] [outer = 0] [url = about:blank]
[task 2021-07-16T19:35:52.767Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 26 (126e89200) [pid = 5838] [serial = 3] [outer = 0] [url = chrome://browser/content/browser.xhtml]
[task 2021-07-16T19:35:52.768Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 25 (129dede40) [pid = 5838] [serial = 9] [outer = 0] [url = chrome://mochikit/content/browser-harness.xhtml]
[task 2021-07-16T19:35:52.768Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 24 (198de0800) [pid = 5838] [serial = 10] [outer = 0] [url = about:blank]
[task 2021-07-16T19:35:52.769Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 23 (198e73800) [pid = 5838] [serial = 70] [outer = 0] [url = chrome://browser/content/preferences/dialogs/connection.xhtml]
[task 2021-07-16T19:35:52.769Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 22 (19b6b6400) [pid = 5838] [serial = 60] [outer = 0] [url = chrome://browser/content/preferences/dialogs/connection.xhtml]
[task 2021-07-16T19:35:52.769Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 21 (1a170e000) [pid = 5838] [serial = 50] [outer = 0] [url = chrome://browser/content/preferences/dialogs/connection.xhtml]
[task 2021-07-16T19:35:52.770Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 20 (127904900) [pid = 5838] [serial = 5] [outer = 0] [url = chrome://extensions/content/dummy.xhtml]
[task 2021-07-16T19:35:52.770Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 19 (129389800) [pid = 5838] [serial = 6] [outer = 0] [url = chrome://extensions/content/dummy.xhtml]
[task 2021-07-16T19:35:52.771Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 18 (19dd84800) [pid = 5838] [serial = 110] [outer = 0] [url = chrome://browser/content/preferences/dialogs/connection.xhtml]
[task 2021-07-16T19:35:52.771Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 17 (19c8c1c00) [pid = 5838] [serial = 100] [outer = 0] [url = chrome://browser/content/preferences/dialogs/connection.xhtml]
[task 2021-07-16T19:35:52.772Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 16 (123d92c80) [pid = 5838] [serial = 1] [outer = 0] [url = chrome://browser/content/hiddenWindowMac.xhtml]
[task 2021-07-16T19:35:52.772Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 15 (126e93800) [pid = 5838] [serial = 2] [outer = 0] [url = about:blank]
[task 2021-07-16T19:35:52.773Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 14 (198e73400) [pid = 5838] [serial = 90] [outer = 0] [url = chrome://browser/content/preferences/dialogs/connection.xhtml]
[task 2021-07-16T19:35:52.773Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 13 (1a1365c00) [pid = 5838] [serial = 80] [outer = 0] [url = chrome://browser/content/preferences/dialogs/connection.xhtml]
[task 2021-07-16T19:35:52.774Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 12 (128b32c80) [pid = 5838] [serial = 7] [outer = 0] [url = about:blank]
[task 2021-07-16T19:35:52.774Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 11 (10f6aac00) [pid = 5838] [serial = 112] [outer = 0] [url = about:blank]
[task 2021-07-16T19:35:52.775Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 10 (19ce3a000) [pid = 5838] [serial = 40] [outer = 0] [url = chrome://browser/content/preferences/dialogs/connection.xhtml]
[task 2021-07-16T19:35:52.775Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 9 (126ee6000) [pid = 5838] [serial = 30] [outer = 0] [url = chrome://browser/content/preferences/dialogs/connection.xhtml]
[task 2021-07-16T19:35:52.794Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 8 (19926fc00) [pid = 5838] [serial = 23] [outer = 0] [url = about:preferences]
[task 2021-07-16T19:35:52.794Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 7 (193342800) [pid = 5838] [serial = 33] [outer = 0] [url = about:preferences]
[task 2021-07-16T19:35:52.795Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 6 (19b671000) [pid = 5838] [serial = 83] [outer = 0] [url = about:preferences]
[task 2021-07-16T19:35:52.795Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 5 (198e6c000) [pid = 5838] [serial = 73] [outer = 0] [url = about:preferences]
[task 2021-07-16T19:35:52.796Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 4 (198e78800) [pid = 5838] [serial = 103] [outer = 0] [url = about:preferences]
[task 2021-07-16T19:35:52.796Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 3 (193341c00) [pid = 5838] [serial = 93] [outer = 0] [url = about:preferences]
[task 2021-07-16T19:35:52.796Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 2 (193344000) [pid = 5838] [serial = 43] [outer = 0] [url = about:preferences]
[task 2021-07-16T19:35:52.797Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 1 (19a946800) [pid = 5838] [serial = 53] [outer = 0] [url = about:preferences]
[task 2021-07-16T19:35:52.797Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 0 (198694400) [pid = 5838] [serial = 63] [outer = 0] [url = about:preferences]
[task 2021-07-16T19:35:52.822Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838, Main Thread] WARNING: Extra shutdown CC: 'i < NORMAL_SHUTDOWN_COLLECTIONS', file /builds/worker/checkouts/gecko/xpcom/base/nsCycleCollector.cpp:3357
[task 2021-07-16T19:35:52.855Z] 19:35:52     INFO - GECKO(5838) | [Parent 5838, Main Thread] WARNING: NS_ENSURE_TRUE(Preferences::InitStaticMembers()) failed: file /builds/worker/checkouts/gecko/modules/libpref/Preferences.cpp:4438
[task 2021-07-16T19:35:52.876Z] 19:35:52     INFO - TEST-INFO | Main app process: exit 0
[task 2021-07-16T19:35:52.876Z] 19:35:52     INFO - TEST-INFO | Confirming we saw 63 DOCSHELL created and 63 destroyed log strings.
[task 2021-07-16T19:35:52.877Z] 19:35:52     INFO - TEST-INFO | Confirming we saw 156 DOMWINDOW created and 156 destroyed log strings.
[task 2021-07-16T19:35:52.877Z] 19:35:52    ERROR - TEST-UNEXPECTED-FAIL | browser/components/preferences/tests/browser_connection.js | leaked 2 window(s) until shutdown [url = about:preferences]
[task 2021-07-16T19:35:52.878Z] 19:35:52    ERROR - TEST-UNEXPECTED-FAIL | browser/components/preferences/tests/browser_connection.js | leaked 2 window(s) until shutdown [url = chrome://browser/content/preferences/dialogs/connection.xhtml]
[task 2021-07-16T19:35:52.879Z] 19:35:52     INFO - TEST-INFO | browser/components/preferences/tests/browser_connection.js | windows(s) leaked: [pid = 5838] [serial = 21], [pid = 5838] [serial = 25], [pid = 5838] [serial = 23], [pid = 5838] [serial = 30]
```