1622098 - Intermittent devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_devtoolstoolbox_focus.js | A promise chain failed ... : can't access property "send", this.conn is null - stack: writeError@resource://devtools/shared/protocol/Actor.js:98:5

Status: RESOLVED FIXED

(DevTools :: about:debugging, defect, P5)

Description

[Treeherder Bug Filer]

Filed by: csabou [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer.html#?job_id=292885679&repo=autoland
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/Ul5VfCi7SYeW_PgNXuUImw/runs/0/artifacts/public/logs/live_backing.log

---

[task 2020-03-12T18:28:01.301Z] 18:28:01 INFO - TEST-PASS | devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_devtoolstoolbox_focus.js | The main process DevToolsServer has no pending connection when the test ends -
[task 2020-03-12T18:28:01.301Z] 18:28:01 INFO - Console message: [JavaScript Error: "TypeError: can't access property "send", this.conn is null" {file: "resource://devtools/shared/protocol/Actor.js" line: 98}]
[task 2020-03-12T18:28:01.301Z] 18:28:01 INFO - Buffered messages finished
[task 2020-03-12T18:28:01.309Z] 18:28:01 INFO - TEST-UNEXPECTED-FAIL | devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_devtoolstoolbox_focus.js | A promise chain failed to handle a rejection: can't access property "send", this.conn is null - stack: writeError@resource://devtools/shared/protocol/Actor.js:98:5
[task 2020-03-12T18:28:01.310Z] 18:28:01 INFO - generateRequestHandlers/</handler/</<@resource://devtools/shared/protocol/Actor.js:187:30
[task 2020-03-12T18:28:01.310Z] 18:28:01 INFO - promise callbackgenerateRequestHandlers/</handler/<@resource://devtools/shared/protocol/Actor.js:187:14
[task 2020-03-12T18:28:01.310Z] 18:28:01 INFO - _queueResponse@resource://devtools/shared/protocol/Actor.js:107:28
[task 2020-03-12T18:28:01.310Z] 18:28:01 INFO - handler@resource://devtools/shared/protocol/Actor.js:183:14
[task 2020-03-12T18:28:01.310Z] 18:28:01 INFO - onPacket@resource://devtools/server/devtools-server-connection.js:380:58
[task 2020-03-12T18:28:01.310Z] 18:28:01 INFO - send/<@resource://devtools/shared/transport/local-transport.js:68:25
[task 2020-03-12T18:28:01.311Z] 18:28:01 INFO - exports.makeInfallible/<@resource://devtools/shared/ThreadSafeDevToolsUtils.js:111:22
[task 2020-03-12T18:28:01.311Z] 18:28:01 INFO - DevToolsUtils.executeSoonexports.executeSoon@resource://devtools/shared/DevToolsUtils.js:62:21
[task 2020-03-12T18:28:01.311Z] 18:28:01 INFO - send@resource://devtools/shared/transport/local-transport.js:56:21
[task 2020-03-12T18:28:01.311Z] 18:28:01 INFO - send@resource://devtools/shared/protocol/Front.js:216:30
[task 2020-03-12T18:28:01.311Z] 18:28:01 INFO - request@resource://devtools/shared/protocol/Front.js:234:10
[task 2020-03-12T18:28:01.311Z] 18:28:01 INFO - generateRequestMethods/</frontProto[name]@resource://devtools/shared/protocol/Front/FrontClassWithSpec.js:47:19
[task 2020-03-12T18:28:01.312Z] 18:28:01 INFO - listTabs@resource://devtools/shared/fronts/root.js:252:44
[task 2020-03-12T18:28:01.312Z] 18:28:01 INFO - listTabs@resource://devtools/client/aboutdebugging/src/modules/client-wrapper.js:131:33
[task 2020-03-12T18:28:01.312Z] 18:28:01 INFO - requestTabs/<@resource://devtools/client/aboutdebugging/src/actions/debug-targets.js:209:31
[task 2020-03-12T18:28:01.312Z] 18:28:01 INFO - thunk/</<@resource://devtools/client/shared/redux/middleware/thunk.js:15:9
[task 2020-03-12T18:28:01.312Z] 18:28:01 INFO - dispatch@resource://devtools/client/shared/vendor/redux.js:681:28
[task 2020-03-12T18:28:01.312Z] 18:28:01 INFO - onTabsUpdated@resource://devtools/client/aboutdebugging/src/middleware/debug-target-listener.js:19:11
[task 2020-03-12T18:28:01.313Z] 18:28:01 INFO - _emit@resource://devtools/shared/event-emitter.js:226:34
[task 2020-03-12T18:28:01.313Z] 18:28:01 INFO - emit@resource://devtools/shared/event-emitter.js:172:18
[task 2020-03-12T18:28:01.313Z] 18:28:01 INFO - emit@resource://devtools/shared/event-emitter.js:324:18
[task 2020-03-12T18:28:01.313Z] 18:28:01 INFO - onPacket@resource://devtools/shared/protocol/Front.js:270:13
[task 2020-03-12T18:28:01.313Z] 18:28:01 INFO - onPacket@resource://devtools/shared/client/devtools-client.js:498:13
[task 2020-03-12T18:28:01.314Z] 18:28:01 INFO - send/<@resource://devtools/shared/transport/local-transport.js:68:25
[task 2020-03-12T18:28:01.314Z] 18:28:01 INFO - exports.makeInfallible/<@resource://devtools/shared/ThreadSafeDevToolsUtils.js:111:22
[task 2020-03-12T18:28:01.314Z] 18:28:01 INFO - DevToolsUtils.executeSoon*exports.executeSoon@resource://devtools/shared/DevToolsUtils.js:62:21
[task 2020-03-12T18:28:01.314Z] 18:28:01 INFO - send@resource://devtools/shared/transport/local-transport.js:56:21
[task 2020-03-12T18:28:01.314Z] 18:28:01 INFO - send@resource://devtools/server/devtools-server-connection.js:91:20
[task 2020-03-12T18:28:01.315Z] 18:28:01 INFO - onTabListChanged@resource://devtools/server/actors/root.js:392:15
[task 2020-03-12T18:28:01.315Z] 18:28:01 INFO - BrowserTabList.prototype._notifyListChanged@resource://devtools/server/actors/webbrowser.js:449:10
[task 2020-03-12T18:28:01.315Z] 18:28:01 INFO - BrowserTabList.prototype.handleEvent<@resource://devtools/server/actors/webbrowser.js:662:12
[task 2020-03-12T18:28:01.316Z] 18:28:01 INFO - exports.makeInfallible/<@resource://devtools/shared/ThreadSafeDevToolsUtils.js:111:22
[task 2020-03-12T18:28:01.316Z] 18:28:01 INFO - updateCurrentBrowser@chrome://browser/content/tabbrowser.js:1187:16
[task 2020-03-12T18:28:01.316Z] 18:28:01 INFO - _setupEventListeners/<@chrome://browser/content/tabbrowser.js:5297:16
[task 2020-03-12T18:28:01.316Z] 18:28:01 INFO - set selectedIndex@chrome://global/content/elements/tabbox.js:197:14
[task 2020-03-12T18:28:01.317Z] 18:28:01 INFO - set selectedPanel@chrome://global/content/elements/tabbox.js:216:7
[task 2020-03-12T18:28:01.318Z] 18:28:01 INFO - Rejection date: Thu Mar 12 2020 18:28:00 GMT+0000 (Coordinated Universal Time) - false == true - JS frame :: resource://testing-common/PromiseTestUtils.jsm :: assertNoUncaughtRejections :: line 265
[task 2020-03-12T18:28:01.318Z] 18:28:01 INFO - Stack trace:
[task 2020-03-12T18:28:01.318Z] 18:28:01 INFO - resource://testing-common/PromiseTestUtils.jsm:assertNoUncaughtRejections:265
[task 2020-03-12T18:28:01.319Z] 18:28:01 INFO - chrome://mochikit/content/browser-test.js:nextTest:624
[task 2020-03-12T18:28:01.319Z] 18:28:01 INFO - chrome://mochikit/content/browser-test.js:testScope/test_finish/<:1457
[task 2020-03-12T18:28:01.319Z] 18:28:01 INFO - chrome://mochikit/content/browser-test.js:run:1372
[task 2020-03-12T18:28:01.323Z] 18:28:01 INFO - GECKO(1221) | MEMORY STAT | vsize 3607MB | residentFast 570MB | heapAllocated 224MB
[task 2020-03-12T18:28:01.324Z] 18:28:01 INFO - TEST-OK | devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_devtoolstoolbox_focus.js | took 26310ms

Comment 1

[Intermittent Failures Robot]

1 failures in 5336 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1

Platform breakdown:

• linux1804-64: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1622098&startday=2020-03-09&endday=2020-03-15&tree=all

Comment 2

[Intermittent Failures Robot]

1 failures in 4955 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1

Platform breakdown:

• linux1804-64: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1622098&startday=2020-03-16&endday=2020-03-22&tree=all

Comment 3

[Andrei Ciure[:aciure]]

Retriggered:

https://treeherder.mozilla.org/#/jobs?repo=autoland&searchStr=os%2Cx%2C10.14%2Cdebug%2Cmochitests%2Ctest-macosx1014-64%2Fdebug-mochitest-devtools-chrome-e10s-2%2Cm%28dt2%29&group_state=expanded&tochange=61c3c9168b93ed2569f8542b5829c4c893789070&fromchange=febf2b0df6f6ae3974c4c4664c25c94174d2555b&selectedJob=296256260

This might have the same cause as Bug 1627138.

:jdescottes can you take a look?

Comment 4

[Intermittent Failures Robot]

22 failures in 5015 pushes (0.004 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 15
• mozilla-central: 6
• try: 1

Platform breakdown:

• macosx1014-64-shippable: 1
• windows7-32-shippable: 1
• linux1804-64-asan: 6
• windows10-64: 5
• windows10-64-ccov: 2
• linux1804-64: 4
• windows7-32: 2
• linux1804-64-shippable: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1622098&startday=2020-03-30&endday=2020-04-05&tree=all

Comment 5

[Julian Descottes [:jdescottes]]

Attachment: Bug 1622098 - Wait for tablist updates after selecting tabs in browser_aboutdebugging_devtoolstoolbox_focus.js

Selecting a tab triggers a tab list update which become more racy due to additional calls to retrieve favicons.
The test is updated to properly wait for the corresponding actions to complete after the selected tab changes.

Comment 6

[Julian Descottes [:jdescottes]]

Attachment: Bug 1622098 - Wait for tablist updates after selecting tabs in browser_aboutdebugging_devtoolstoolbox_focus.js

Depends on D69812

Comment 7

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/2a11a66d8da7
Wait for tablist updates after selecting tabs in browser_aboutdebugging_devtoolstoolbox_focus.js r=daisuke

Comment 8

[Cristina Coroiu [:ccoroiu]]

https://hg.mozilla.org/mozilla-central/rev/2a11a66d8da7

Comment 9

[Intermittent Failures Robot]

13 failures in 4823 pushes (0.003 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 5
• autoland: 7
• try: 1

Platform breakdown:

• linux1804-64-asan: 4
• windows10-64: 3
• linux1804-64-shippable: 1
• macosx1014-64-shippable: 2
• linux1804-64: 2
• windows10-64-ccov: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1622098&startday=2020-04-06&endday=2020-04-12&tree=all