Bug: Intermittent [TV] browser/components/sessionstore/test/browser_formdata_max_size.js | Found a tab after previous test timed out: http://mochi.test:8888/browser/browser/components/sessionstore/test/browser_formdata_sample.html -
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2021-09-14 20:35:34+00:00
Resolved: 2021-10-12 17:02:11+00:00

**Filed by:** apavel [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=351511733&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/Bz16NQV-Rp-jdgAGWr8PQg/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/Bz16NQV-Rp-jdgAGWr8PQg/runs/0/artifacts/public/logs/live_backing.log&only_show_unexpected=1

---
```
[task 2021-09-14T16:37:46.136Z] 16:37:46     INFO - TEST-PASS | browser/components/sessionstore/test/browser_formdata_max_size.js | total length shorter than browser.sessionstore.dom_form_max_limit isn't ok. - 
[task 2021-09-14T16:37:46.136Z] 16:37:46     INFO - Leaving test bound test_form_max_limit
[task 2021-09-14T16:37:46.137Z] 16:37:46     INFO - Entering test bound test_form_max_limit_many_fields
[task 2021-09-14T16:37:46.137Z] 16:37:46     INFO - Buffered messages logged at 16:36:21
[task 2021-09-14T16:37:46.137Z] 16:37:46     INFO - Console message: [JavaScript Warning: "telemetry.state_file_read_errors - Unknown scalar."]
[task 2021-09-14T16:37:46.138Z] 16:37:46     INFO - Console message: [JavaScript Warning: "telemetry.generated_new_client_id - Unknown scalar."]
[task 2021-09-14T16:37:46.138Z] 16:37:46     INFO - Buffered messages finished
[task 2021-09-14T16:37:46.139Z] 16:37:46     INFO - TEST-UNEXPECTED-FAIL | browser/components/sessionstore/test/browser_formdata_max_size.js | Test timed out - 
[task 2021-09-14T16:37:46.139Z] 16:37:46     INFO - GECKO(3108) | MEMORY STAT | vsize 934MB | vsizeMaxContiguous 1806MB | residentFast 230MB | heapAllocated 67MB
[task 2021-09-14T16:37:46.140Z] 16:37:46     INFO - TEST-OK | browser/components/sessionstore/test/browser_formdata_max_size.js | took 90054ms
[task 2021-09-14T16:37:46.140Z] 16:37:46     INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-09-14T16:37:46.141Z] 16:37:46     INFO - TEST-UNEXPECTED-FAIL | browser/components/sessionstore/test/browser_formdata_max_size.js | Found a tab after previous test timed out: http://mochi.test:8888/browser/browser/components/sessionstore/test/browser_formdata_sample.html - 
[task 2021-09-14T16:37:46.142Z] 16:37:46     INFO - GECKO(3108) | [Child 4368: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 4ea8800 == 1 [pid = 4368] [id = 1]
[task 2021-09-14T16:37:46.142Z] 16:37:46     INFO - GECKO(3108) | [Child 4368: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 1 (4e69300) [pid = 4368] [serial = 4] [outer = 0]
[task 2021-09-14T16:37:46.142Z] 16:37:46     INFO - GECKO(3108) | [Child 4368: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 2 (b688800) [pid = 4368] [serial = 5] [outer = 4e69300]
[task 2021-09-14T16:37:46.143Z] 16:37:46     INFO - checking window state
[task 2021-09-14T16:37:46.143Z] 16:37:46     INFO - GECKO(3108) | [Child 8052: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL ba9a400 == 1 [pid = 8052] [id = 1] [url = about:blank]
[task 2021-09-14T16:37:46.144Z] 16:37:46     INFO - GECKO(3108) | [Parent 7832: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 11 (1426b400) [pid = 7832] [serial = 14] [outer = 24f66f00]
[task 2021-09-14T16:37:46.148Z] 16:37:46     INFO - GECKO(3108) | [Child 8052: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL ba8e800 == 0 [pid = 8052] [id = 0] [url = https://example.com/browser/browser/components/sessionstore/test/browser_formdata_sample.html]
[task 2021-09-14T16:37:46.157Z] 16:37:46     INFO - GECKO(3108) | [Parent 7832, Main Thread] WARNING: NS_ENSURE_TRUE(presShell) failed: file /builds/worker/checkouts/gecko/dom/base/nsGlobalWindowOuter.cpp:4231
[task 2021-09-14T16:37:46.203Z] 16:37:46     INFO - GECKO(3108) | [2021-09-14T16:37:46Z WARN  webrender::device::gl] Attribute VertexAttribute { name: "aUvRect1", count: 4, kind: F32 } is not found in the shader composite. Expected at 6, found at -1
[task 2021-09-14T16:37:46.213Z] 16:37:46     INFO - GECKO(3108) | [2021-09-14T16:37:46Z WARN  webrender::device::gl] Attribute VertexAttribute { name: "aUvRect2", count: 4, kind: F32 } is not found in the shader composite. Expected at 7, found at -1
[task 2021-09-14T16:37:46.219Z] 16:37:46     INFO - GECKO(3108) | [Child 2660: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL bfa0c00 == 0 [pid = 2660] [id = 0] [url = about:blank]
[task 2021-09-14T16:37:46.281Z] 16:37:46     INFO - GECKO(3108) | [Child 8024: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL b599000 == 0 [pid = 8024] [id = 0] [url = about:newtab]
[task 2021-09-14T16:37:46.326Z] 16:37:46     INFO - GECKO(3108) | [Child 8024: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 1 (b58d200) [pid = 8024] [serial = 1] [outer = 0] [url = about:newtab]
[task 2021-09-14T16:37:46.332Z] 16:37:46     INFO - GECKO(3108) | [Child 8024: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 0 (b59e800) [pid = 8024] [serial = 3] [outer = 0] [url = about:newtab]
[task 2021-09-14T16:37:46.626Z] 16:37:46     INFO - GECKO(3108) | ###!!! [Parent][MessageChannel] Error: (msgtype=0x39007A,name=PContent::Msg_DestroyBrowsingContextGroup) Closed channel: cannot send/recv
[task 2021-09-14T16:37:46.648Z] 16:37:46     INFO - GECKO(3108) | [Child 4292, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.648Z] 16:37:46     INFO - GECKO(3108) | [Child 4292, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.657Z] 16:37:46     INFO - GECKO(3108) | [Child 1252, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.658Z] 16:37:46     INFO - GECKO(3108) | [Child 4292, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.661Z] 16:37:46     INFO - GECKO(3108) | [Child 4292, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.661Z] 16:37:46     INFO - GECKO(3108) | [Child 1252, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.662Z] 16:37:46     INFO - GECKO(3108) | [Child 4532: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL b97a400 == 0 [pid = 4532] [id = 0] [url = http://mochi.test:8888/browser/browser/components/sessionstore/test/browser_formdata_sample.html]
[task 2021-09-14T16:37:46.663Z] 16:37:46     INFO - GECKO(3108) | [Child 4292, Main Thread] WARNING: Extra shutdown CC: 'i < NORMAL_SHUTDOWN_COLLECTIONS', file /builds/worker/checkouts/gecko/xpcom/base/nsCycleCollector.cpp:3357
[task 2021-09-14T16:37:46.666Z] 16:37:46     INFO - GECKO(3108) | [Child 4292, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.666Z] 16:37:46     INFO - GECKO(3108) | [Child 1252, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.667Z] 16:37:46     INFO - GECKO(3108) | [Child 4292, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.668Z] 16:37:46     INFO - GECKO(3108) | [Child 4292, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.669Z] 16:37:46     INFO - GECKO(3108) | [Child 4292, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.670Z] 16:37:46     INFO - GECKO(3108) | [Child 1252, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.673Z] 16:37:46     INFO - GECKO(3108) | [Child 1252, Main Thread] WARNING: Extra shutdown CC: 'i < NORMAL_SHUTDOWN_COLLECTIONS', file /builds/worker/checkouts/gecko/xpcom/base/nsCycleCollector.cpp:3357
[task 2021-09-14T16:37:46.674Z] 16:37:46     INFO - GECKO(3108) | [Child 4292, Main Thread] WARNING: NS_ENSURE_TRUE(Preferences::InitStaticMembers()) failed: file /builds/worker/checkouts/gecko/modules/libpref/Preferences.cpp:4438
[task 2021-09-14T16:37:46.676Z] 16:37:46     INFO - GECKO(3108) | [Child 1252, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.676Z] 16:37:46     INFO - GECKO(3108) | [Child 3512, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.678Z] 16:37:46     INFO - GECKO(3108) | [Child 1252, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.679Z] 16:37:46     INFO - GECKO(3108) | [Child 1252, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.680Z] 16:37:46     INFO - GECKO(3108) | [Child 1252, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.681Z] 16:37:46     INFO - GECKO(3108) | [Child 3512, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.685Z] 16:37:46     INFO - GECKO(3108) | [Child 1252, Main Thread] WARNING: NS_ENSURE_TRUE(Preferences::InitStaticMembers()) failed: file /builds/worker/checkouts/gecko/modules/libpref/Preferences.cpp:4438
[task 2021-09-14T16:37:46.686Z] 16:37:46     INFO - GECKO(3108) | [Child 3512, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.688Z] 16:37:46     INFO - GECKO(3108) | [Child 3512, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.691Z] 16:37:46     INFO - GECKO(3108) | [Child 3512, Main Thread] WARNING: Extra shutdown CC: 'i < NORMAL_SHUTDOWN_COLLECTIONS', file /builds/worker/checkouts/gecko/xpcom/base/nsCycleCollector.cpp:3357
[task 2021-09-14T16:37:46.693Z] 16:37:46     INFO - GECKO(3108) | [Child 3512, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.695Z] 16:37:46     INFO - GECKO(3108) | [Child 3512, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.696Z] 16:37:46     INFO - GECKO(3108) | [Child 3512, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.696Z] 16:37:46     INFO - GECKO(3108) | [Child 3512, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.701Z] 16:37:46     INFO - GECKO(3108) | [Child 3512, Main Thread] WARNING: NS_ENSURE_TRUE(Preferences::InitStaticMembers()) failed: file /builds/worker/checkouts/gecko/modules/libpref/Preferences.cpp:4438
[task 2021-09-14T16:37:46.723Z] 16:37:46     INFO - GECKO(3108) | [Child 2660: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 1 (bfa2400) [pid = 2660] [serial = 2] [outer = 0] [url = about:blank]
[task 2021-09-14T16:37:46.724Z] 16:37:46     INFO - GECKO(3108) | [Child 2660: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 0 (bf8d300) [pid = 2660] [serial = 1] [outer = 0] [url = about:blank]
[task 2021-09-14T16:37:46.747Z] 16:37:46     INFO - GECKO(3108) | [Child 4532: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 1 (5069800) [pid = 4532] [serial = 1] [outer = 0] [url = http://mochi.test:8888/browser/browser/components/sessionstore/test/browser_formdata_sample.html]
[task 2021-09-14T16:37:46.754Z] 16:37:46     INFO - GECKO(3108) | [Child 4532, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.760Z] 16:37:46     INFO - GECKO(3108) | [Child 4532, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.761Z] 16:37:46     INFO - GECKO(3108) | [Child 4532, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.765Z] 16:37:46     INFO - GECKO(3108) | [Child 4532, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.770Z] 16:37:46     INFO - GECKO(3108) | [Child 4532: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 0 (b980800) [pid = 4532] [serial = 3] [outer = 0] [url = http://mochi.test:8888/browser/browser/components/sessionstore/test/browser_formdata_sample.html]
[task 2021-09-14T16:37:46.771Z] 16:37:46     INFO - GECKO(3108) | [Child 4532, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.775Z] 16:37:46     INFO - GECKO(3108) | [Child 4532, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.779Z] 16:37:46     INFO - GECKO(3108) | [Child 4532, Main Thread] WARNING: Extra shutdown CC: 'i < NORMAL_SHUTDOWN_COLLECTIONS', file /builds/worker/checkouts/gecko/xpcom/base/nsCycleCollector.cpp:3357
[task 2021-09-14T16:37:46.782Z] 16:37:46     INFO - GECKO(3108) | [Child 4532, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.784Z] 16:37:46     INFO - GECKO(3108) | [Child 4532, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.785Z] 16:37:46     INFO - GECKO(3108) | [Child 4532, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.786Z] 16:37:46     INFO - GECKO(3108) | [Child 4532, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:46.791Z] 16:37:46     INFO - GECKO(3108) | [Child 4532, Main Thread] WARNING: NS_ENSURE_TRUE(Preferences::InitStaticMembers()) failed: file /builds/worker/checkouts/gecko/modules/libpref/Preferences.cpp:4438
[task 2021-09-14T16:37:47.092Z] 16:37:47     INFO - GECKO(3108) | [2021-09-14T16:37:47Z WARN  webrender::device::gl] Attribute VertexAttribute { name: "aColor", count: 4, kind: F32 } is not found in the shader composite. Expected at 3, found at -1
[task 2021-09-14T16:37:47.100Z] 16:37:47     INFO - GECKO(3108) | [2021-09-14T16:37:47Z WARN  webrender::device::gl] Attribute VertexAttribute { name: "aUvRect1", count: 4, kind: F32 } is not found in the shader composite. Expected at 6, found at -1
[task 2021-09-14T16:37:47.101Z] 16:37:47     INFO - GECKO(3108) | [2021-09-14T16:37:47Z WARN  webrender::device::gl] Attribute VertexAttribute { name: "aUvRect2", count: 4, kind: F32 } is not found in the shader composite. Expected at 7, found at -1
[task 2021-09-14T16:37:47.615Z] 16:37:47     INFO - GECKO(3108) | [Parent 7832: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 10 (24f94400) [pid = 7832] [serial = 8] [outer = 0] [url = about:blank]
[task 2021-09-14T16:37:47.726Z] 16:37:47     INFO - GECKO(3108) | Completed ShutdownLeaks collections in process 4368
[task 2021-09-14T16:37:47.774Z] 16:37:47     INFO - GECKO(3108) | Completed ShutdownLeaks collections in process 2660
[task 2021-09-14T16:37:47.792Z] 16:37:47     INFO - GECKO(3108) | Completed ShutdownLeaks collections in process 4912
[task 2021-09-14T16:37:47.805Z] 16:37:47     INFO - GECKO(3108) | Completed ShutdownLeaks collections in process 8024
[task 2021-09-14T16:37:47.957Z] 16:37:47     INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-09-14T16:37:47.966Z] 16:37:47     INFO - TEST-UNEXPECTED-FAIL | browser/components/sessionstore/test/browser_formdata_max_size.js | Uncaught exception received from previously timed out test - at resource://specialpowers/SpecialPowersChild.jsm:1533 - TypeError: BrowsingContext.getFromWindow: Argument 1 does not implement interface WindowProxy.
[task 2021-09-14T16:37:47.966Z] 16:37:47     INFO - Stack trace:
[task 2021-09-14T16:37:47.966Z] 16:37:47     INFO - _browsingContextForTarget@resource://specialpowers/SpecialPowersChild.jsm:1533:28
[task 2021-09-14T16:37:47.966Z] 16:37:47     INFO - spawn@resource://specialpowers/SpecialPowersChild.jsm:1585:32
[task 2021-09-14T16:37:47.966Z] 16:37:47     INFO - test_form_max_limit_many_fields/<@chrome://mochitests/content/browser/browser/components/sessionstore/test/browser_formdata_max_size.js:100:25
[task 2021-09-14T16:37:47.966Z] 16:37:47     INFO - withNewTab@resource://testing-common/BrowserTestUtils.jsm:148:24
[task 2021-09-14T16:37:47.967Z] 16:37:47     INFO - GECKO(3108) | [Parent 7832, IPC I/O Parent] WARNING: file /builds/worker/checkouts/gecko/ipc/chromium/src/base/process_util_win.cc:167
[task 2021-09-14T16:37:47.968Z] 16:37:47     INFO - GECKO(3108) | [Parent 7832, IPC I/O Parent] WARNING: file /builds/worker/checkouts/gecko/ipc/chromium/src/base/process_util_win.cc:167
[task 2021-09-14T16:37:47.968Z] 16:37:47     INFO - GECKO(3108) | [Parent 7832, IPC I/O Parent] WARNING: file /builds/worker/checkouts/gecko/ipc/chromium/src/base/process_util_win.cc:167
[task 2021-09-14T16:37:47.969Z] 16:37:47     INFO - GECKO(3108) | [Parent 7832, IPC I/O Parent] WARNING: file /builds/worker/checkouts/gecko/ipc/chromium/src/base/process_util_win.cc:167
[task 2021-09-14T16:37:47.974Z] 16:37:47     INFO - GECKO(3108) | [Parent 7832: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 11 (1426c000) [pid = 7832] [serial = 15] [outer = 24f66f00]
[task 2021-09-14T16:37:47.979Z] 16:37:47     INFO - GECKO(3108) | [Child 8052, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:47.985Z] 16:37:47     INFO - GECKO(3108) | [Child 8052, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:47.992Z] 16:37:47     INFO - GECKO(3108) | Completed ShutdownLeaks collections in process 4188
[task 2021-09-14T16:37:48.002Z] 16:37:48     INFO - GECKO(3108) | [Child 8052, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:48.006Z] 16:37:48     INFO - GECKO(3108) | [Child 8052, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:48.008Z] 16:37:48     INFO - GECKO(3108) | [Child 8052: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 3 (babec00) [pid = 8052] [serial = 4] [outer = 0] [url = about:blank]
[task 2021-09-14T16:37:48.008Z] 16:37:48     INFO - GECKO(3108) | [Child 8052: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 2 (5169400) [pid = 8052] [serial = 1] [outer = 0] [url = https://example.com/browser/browser/components/sessionstore/test/browser_formdata_sample.html]
[task 2021-09-14T16:37:48.009Z] 16:37:48     INFO - GECKO(3108) | [Child 8052: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 1 (ba92400) [pid = 8052] [serial = 5] [outer = 0] [url = about:blank]
[task 2021-09-14T16:37:48.009Z] 16:37:48     INFO - GECKO(3108) | [Child 8052: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 0 (ba94800) [pid = 8052] [serial = 3] [outer = 0] [url = https://example.com/browser/browser/components/sessionstore/test/browser_formdata_sample.html]
[task 2021-09-14T16:37:48.010Z] 16:37:48     INFO - GECKO(3108) | [Child 8052, Main Thread] WARNING: Extra shutdown CC: 'i < NORMAL_SHUTDOWN_COLLECTIONS', file /builds/worker/checkouts/gecko/xpcom/base/nsCycleCollector.cpp:3357
[task 2021-09-14T16:37:48.011Z] 16:37:48     INFO - GECKO(3108) | [Child 8052, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:48.013Z] 16:37:48     INFO - GECKO(3108) | [Child 8052, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:48.014Z] 16:37:48     INFO - GECKO(3108) | [Child 8052, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:48.014Z] 16:37:48     INFO - GECKO(3108) | [Child 8052, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-09-14T16:37:48.018Z] 16:37:48     INFO - GECKO(3108) | [Child 8052, Main Thread] WARNING: NS_ENSURE_TRUE(Preferences::InitStaticMembers()) failed: file /builds/worker/checkouts/gecko/modules/libpref/Preferences.cpp:4438
[task 2021-09-14T16:37:49.815Z] 16:37:49     INFO - GECKO(3108) | [Parent 7832: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 10 (1426b400) [pid = 7832] [serial = 14] [outer = 0] [url = about:blank]
[task 2021-09-14T16:37:50.171Z] 16:37:50     INFO - GECKO(3108) | Completed ShutdownLeaks collections in process 7832
[task 2021-09-14T16:37:50.174Z] 16:37:50     INFO - TEST-START | Shutdown
```