1660618 - Intermittent devtools/shared/resources/tests/browser_target_list_watchTargets.js | Uncaught exception - at resource://devtools/shared/protocol/Front.js:327 - Error: wrongState from: server0.conn38.workerTarget42

Status: RESOLVED INCOMPLETE

(DevTools :: General, defect, P5)

Description

[Treeherder Bug Filer]

Filed by: btara [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer.html#?job_id=313741693&repo=autoland
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/JyXB-xyvRKuS7vIFMuh2fQ/runs/0/artifacts/public/logs/live_backing.log

---

[task 2020-08-22T15:28:12.851Z] 15:28:12     INFO - TEST-START | devtools/shared/resources/tests/browser_target_list_watchTargets.js
[task 2020-08-22T15:28:13.096Z] 15:28:13     INFO - TEST-INFO | started process screenshot
[task 2020-08-22T15:28:13.161Z] 15:28:13     INFO - TEST-INFO | screenshot: exit 0
[task 2020-08-22T15:28:13.161Z] 15:28:13     INFO - Buffered messages logged at 15:28:12
[task 2020-08-22T15:28:13.162Z] 15:28:13     INFO - Entering test bound 
[task 2020-08-22T15:28:13.162Z] 15:28:13     INFO - Test TargetList watchTargets function
[task 2020-08-22T15:28:13.162Z] 15:28:13     INFO - Buffered messages finished
[task 2020-08-22T15:28:13.163Z] 15:28:13     INFO - TEST-UNEXPECTED-FAIL | devtools/shared/resources/tests/browser_target_list_watchTargets.js | Uncaught exception - at resource://devtools/shared/protocol/Front.js:327 - Error: wrongState from: server0.conn38.workerTarget42
[task 2020-08-22T15:28:13.163Z] 15:28:13     INFO - Stack trace:
[task 2020-08-22T15:28:13.163Z] 15:28:13     INFO - onPacket/<@resource://devtools/shared/protocol/Front.js:327:31
[task 2020-08-22T15:28:13.163Z] 15:28:13     INFO - DevTools RDP*request@resource://devtools/shared/protocol/Front.js:260:14
[task 2020-08-22T15:28:13.163Z] 15:28:13     INFO - generateRequestMethods/</frontProto[name]@resource://devtools/shared/protocol/Front/FrontClassWithSpec.js:46:19
[task 2020-08-22T15:28:13.164Z] 15:28:13     INFO - attach/this._attach<@resource://devtools/client/fronts/targets/worker.js:89:42
[task 2020-08-22T15:28:13.164Z] 15:28:13     INFO - async*attach@resource://devtools/client/fronts/targets/worker.js:100:7
[task 2020-08-22T15:28:13.164Z] 15:28:13     INFO - _attachAndInitThread@resource://devtools/client/fronts/targets/target-mixin.js:519:18
[task 2020-08-22T15:28:13.164Z] 15:28:13     INFO - attachAndInitThread@resource://devtools/client/fronts/targets/target-mixin.js:502:40
[task 2020-08-22T15:28:13.164Z] 15:28:13     INFO - _onTargetAvailable@resource://devtools/shared/resources/target-list.js:182:23
[task 2020-08-22T15:28:13.164Z] 15:28:13     INFO - _processNewWorkerTarget@resource://devtools/shared/resources/legacy-target-watchers/legacy-workers-watcher.js:128:18
[task 2020-08-22T15:28:13.165Z] 15:28:13     INFO - _workerListChanged/promises<@resource://devtools/shared/resources/legacy-target-watchers/legacy-workers-watcher.js:105:12
[task 2020-08-22T15:28:13.165Z] 15:28:13     INFO - _workerListChanged@resource://devtools/shared/resources/legacy-target-watchers/legacy-workers-watcher.js:104:30
[task 2020-08-22T15:28:13.165Z] 15:28:13     INFO - async*_onProcessAvailable@resource://devtools/shared/resources/legacy-target-watchers/legacy-workers-watcher.js:45:16
[task 2020-08-22T15:28:13.165Z] 15:28:13     INFO - listen@resource://devtools/shared/resources/legacy-target-watchers/legacy-workers-watcher.js:145:18
[task 2020-08-22T15:28:13.165Z] 15:28:13     INFO - async*startListening@resource://devtools/shared/resources/target-list.js:299:47
[task 2020-08-22T15:28:13.166Z] 15:28:13     INFO - async*testWatchTargets@chrome://mochitests/content/browser/devtools/shared/resources/tests/browser_target_list_watchTargets.js:39:20
[task 2020-08-22T15:28:13.166Z] 15:28:13     INFO - async*@chrome://mochitests/content/browser/devtools/shared/resources/tests/browser_target_list_watchTargets.js:25:9
[task 2020-08-22T15:28:13.166Z] 15:28:13     INFO - Async*Tester_execTest/<@chrome://mochikit/content/browser-test.js:1069:34
[task 2020-08-22T15:28:13.166Z] 15:28:13     INFO - Tester_execTest@chrome://mochikit/content/browser-test.js:1109:11
[task 2020-08-22T15:28:13.166Z] 15:28:13     INFO - nextTest/<@chrome://mochikit/content/browser-test.js:932:14
[task 2020-08-22T15:28:13.166Z] 15:28:13     INFO - SimpleTest.waitForFocus/waitForFocusInner/focusedOrLoaded/<@chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:1037:23
[task 2020-08-22T15:28:13.167Z] 15:28:13     INFO - Leaving test bound 
[task 2020-08-22T15:28:13.167Z] 15:28:13     INFO - GECKO(5284) | JavaScript error: resource://devtools/shared/protocol/Front.js, line 327: Error: wrongState from: server0.conn38.workerTarget42
[task 2020-08-22T15:28:13.167Z] 15:28:13     INFO - Not taking screenshot here: see the one that was previously logged
[task 2020-08-22T15:28:13.168Z] 15:28:13     INFO - TEST-UNEXPECTED-FAIL | devtools/shared/resources/tests/browser_target_list_watchTargets.js | The main process DevToolsServer has no pending connection when the test ends - 
[task 2020-08-22T15:28:13.168Z] 15:28:13     INFO - Stack trace:
[task 2020-08-22T15:28:13.168Z] 15:28:13     INFO - chrome://mochikit/content/browser-test.js:test_ok:1304
[task 2020-08-22T15:28:13.168Z] 15:28:13     INFO - chrome://mochitests/content/browser/devtools/client/shared/test/shared-head.js:cleanup:307
[task 2020-08-22T15:28:13.168Z] 15:28:13     INFO - Console message: [JavaScript Error: "Error: wrongState from: server0.conn38.workerTarget42" {file: "resource://devtools/shared/protocol/Front.js" line: 327}]
[task 2020-08-22T15:28:13.169Z] 15:28:13     INFO - GECKO(5284) | console.error: "Error while calling actor 'workerTarget's method 'connect'" "can't access property \"send\", this.transport is null"
[task 2020-08-22T15:28:13.169Z] 15:28:13     INFO - GECKO(5284) | console.error: "send@resource://devtools/server/devtools-server-connection.js:99:5\nsendReturn@resource://devtools/shared/protocol/Actor.js:192:16\nensureDOMPromiseRejectionsProcessed@resource://testing-common/PromiseTestUtils.jsm:114:17\nnextTest@chrome://mochikit/content/browser-test.js:614:29\nasync*testScope/test_finish/<@chrome://mochikit/content/browser-test.js:1512:25\nrun@chrome://mochikit/content/browser-test.js:1427:9\n"
[task 2020-08-22T15:28:13.170Z] 15:28:13     INFO - GECKO(5284) | console.error: "Error while calling actor 'workerTarget's method 'connect'" "can't access property \"send\", this.transport is null"
[task 2020-08-22T15:28:13.170Z] 15:28:13     INFO - GECKO(5284) | console.error: "send@resource://devtools/server/devtools-server-connection.js:99:5\nsendReturn@resource://devtools/shared/protocol/Actor.js:192:16\nensureDOMPromiseRejectionsProcessed@resource://testing-common/PromiseTestUtils.jsm:114:17\nnextTest@chrome://mochikit/content/browser-test.js:614:29\nasync*testScope/test_finish/<@chrome://mochikit/content/browser-test.js:1512:25\nrun@chrome://mochikit/content/browser-test.js:1427:9\n"
[task 2020-08-22T15:28:13.170Z] 15:28:13     INFO - GECKO(5284) | console.error: "Error while calling actor 'workerTarget's method 'connect'" "can't access property \"send\", this.transport is null"
[task 2020-08-22T15:28:13.171Z] 15:28:13     INFO - GECKO(5284) | console.error: "send@resource://devtools/server/devtools-server-connection.js:99:5\nsendReturn@resource://devtools/shared/protocol/Actor.js:192:16\nensureDOMPromiseRejectionsProcessed@resource://testing-common/PromiseTestUtils.jsm:114:17\nnextTest@chrome://mochikit/content/browser-test.js:614:29\nasync*testScope/test_finish/<@chrome://mochikit/content/browser-test.js:1512:25\nrun@chrome://mochikit/content/browser-test.js:1427:9\n"
[task 2020-08-22T15:28:13.171Z] 15:28:13     INFO - Not taking screenshot here: see the one that was previously logged
[task 2020-08-22T15:28:13.172Z] 15:28:13     INFO - TEST-UNEXPECTED-FAIL | devtools/shared/resources/tests/browser_target_list_watchTargets.js | A promise chain failed to handle a rejection: wrongState from: server0.conn38.workerTarget42 - stack: onPacket/<@resource://devtools/shared/protocol/Front.js:327:31
[task 2020-08-22T15:28:13.172Z] 15:28:13     INFO - DevTools RDP*request@resource://devtools/shared/protocol/Front.js:260:14
[task 2020-08-22T15:28:13.172Z] 15:28:13     INFO - generateRequestMethods/</frontProto[name]@resource://devtools/shared/protocol/Front/FrontClassWithSpec.js:46:19
[task 2020-08-22T15:28:13.172Z] 15:28:13     INFO - attach/this._attach<@resource://devtools/client/fronts/targets/worker.js:89:42
[task 2020-08-22T15:28:13.172Z] 15:28:13     INFO - async*attach@resource://devtools/client/fronts/targets/worker.js:100:7
[task 2020-08-22T15:28:13.172Z] 15:28:13     INFO - _attachAndInitThread@resource://devtools/client/fronts/targets/target-mixin.js:519:18
[task 2020-08-22T15:28:13.172Z] 15:28:13     INFO - attachAndInitThread@resource://devtools/client/fronts/targets/target-mixin.js:502:40
[task 2020-08-22T15:28:13.172Z] 15:28:13     INFO - _onTargetAvailable@resource://devtools/shared/resources/target-list.js:182:23
[task 2020-08-22T15:28:13.172Z] 15:28:13     INFO - _processNewWorkerTarget@resource://devtools/shared/resources/legacy-target-watchers/legacy-workers-watcher.js:128:18
[task 2020-08-22T15:28:13.172Z] 15:28:13     INFO - _workerListChanged/promises<@resource://devtools/shared/resources/legacy-target-watchers/legacy-workers-watcher.js:105:12
[task 2020-08-22T15:28:13.172Z] 15:28:13     INFO - _workerListChanged@resource://devtools/shared/resources/legacy-target-watchers/legacy-workers-watcher.js:104:30
[task 2020-08-22T15:28:13.172Z] 15:28:13     INFO - async*_onProcessAvailable@resource://devtools/shared/resources/legacy-target-watchers/legacy-workers-watcher.js:45:16
[task 2020-08-22T15:28:13.172Z] 15:28:13     INFO - listen@resource://devtools/shared/resources/legacy-target-watchers/legacy-workers-watcher.js:145:18
[task 2020-08-22T15:28:13.172Z] 15:28:13     INFO - async*startListening@resource://devtools/shared/resources/target-list.js:299:47
[task 2020-08-22T15:28:13.172Z] 15:28:13     INFO - async*testWatchTargets@chrome://mochitests/content/browser/devtools/shared/resources/tests/browser_target_list_watchTargets.js:39:20
[task 2020-08-22T15:28:13.172Z] 15:28:13     INFO - async*@chrome://mochitests/content/browser/devtools/shared/resources/tests/browser_target_list_watchTargets.js:25:9
[task 2020-08-22T15:28:13.172Z] 15:28:13     INFO - Async*Tester_execTest/<@chrome://mochikit/content/browser-test.js:1069:34
[task 2020-08-22T15:28:13.173Z] 15:28:13     INFO - Tester_execTest@chrome://mochikit/content/browser-test.js:1109:11
[task 2020-08-22T15:28:13.173Z] 15:28:13     INFO - nextTest/<@chrome://mochikit/content/browser-test.js:932:14
[task 2020-08-22T15:28:13.173Z] 15:28:13     INFO - SimpleTest.waitForFocus/waitForFocusInner/focusedOrLoaded/<@chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:1037:23
[task 2020-08-22T15:28:13.173Z] 15:28:13     INFO - Rejection date: Sat Aug 22 2020 15:28:13 GMT+0000 (Greenwich Mean Time) - false == true - JS frame :: resource://testing-common/PromiseTestUtils.jsm :: assertNoUncaughtRejections :: line 265
[task 2020-08-22T15:28:13.173Z] 15:28:13     INFO - Stack trace:
[task 2020-08-22T15:28:13.173Z] 15:28:13     INFO - resource://testing-common/PromiseTestUtils.jsm:assertNoUncaughtRejections:265
[task 2020-08-22T15:28:13.173Z] 15:28:13     INFO - chrome://mochikit/content/browser-test.js:nextTest:615
[task 2020-08-22T15:28:13.173Z] 15:28:13     INFO - chrome://mochikit/content/browser-test.js:testScope/test_finish/<:1512
[task 2020-08-22T15:28:13.173Z] 15:28:13     INFO - chrome://mochikit/content/browser-test.js:run:1427
[task 2020-08-22T15:28:13.173Z] 15:28:13     INFO - Not taking screenshot here: see the one that was previously logged
[task 2020-08-22T15:28:13.173Z] 15:28:13     INFO - TEST-UNEXPECTED-FAIL | devtools/shared/resources/tests/browser_target_list_watchTargets.js | A promise chain failed to handle a rejection: can't access property "send", this.transport is null - stack: send@resource://devtools/server/devtools-server-connection.js:99:5
[task 2020-08-22T15:28:13.173Z] 15:28:13     INFO - writeError@resource://devtools/shared/protocol/Actor.js:103:15
[task 2020-08-22T15:28:13.173Z] 15:28:13     INFO - generateRequestHandlers/</handler/</<@resource://devtools/shared/protocol/Actor.js:199:30
[task 2020-08-22T15:28:13.173Z] 15:28:13     INFO - ensureDOMPromiseRejectionsProcessed@resource://testing-common/PromiseTestUtils.jsm:114:17
[task 2020-08-22T15:28:13.173Z] 15:28:13     INFO - nextTest@chrome://mochikit/content/browser-test.js:614:29
[task 2020-08-22T15:28:13.173Z] 15:28:13     INFO - async*testScope/test_finish/<@chrome://mochikit/content/browser-test.js:1512:25
[task 2020-08-22T15:28:13.174Z] 15:28:13     INFO - run@chrome://mochikit/content/browser-test.js:1427:9
[task 2020-08-22T15:28:13.174Z] 15:28:13     INFO - Rejection date: Sat Aug 22 2020 15:28:13 GMT+0000 (Greenwich Mean Time) - false == true - JS frame :: resource://testing-common/PromiseTestUtils.jsm :: assertNoUncaughtRejections :: line 265
[task 2020-08-22T15:28:13.174Z] 15:28:13     INFO - Stack trace:
[task 2020-08-22T15:28:13.174Z] 15:28:13     INFO - resource://testing-common/PromiseTestUtils.jsm:assertNoUncaughtRejections:265
[task 2020-08-22T15:28:13.174Z] 15:28:13     INFO - chrome://mochikit/content/browser-test.js:nextTest:615
[task 2020-08-22T15:28:13.174Z] 15:28:13     INFO - chrome://mochikit/content/browser-test.js:testScope/test_finish/<:1512
[task 2020-08-22T15:28:13.174Z] 15:28:13     INFO - chrome://mochikit/content/browser-test.js:run:1427
[task 2020-08-22T15:28:13.174Z] 15:28:13     INFO - Not taking screenshot here: see the one that was previously logged
[task 2020-08-22T15:28:13.174Z] 15:28:13     INFO - TEST-UNEXPECTED-FAIL | devtools/shared/resources/tests/browser_target_list_watchTargets.js | A promise chain failed to handle a rejection: can't access property "send", this.transport is null - stack: send@resource://devtools/server/devtools-server-connection.js:99:5
[task 2020-08-22T15:28:13.174Z] 15:28:13     INFO - writeError@resource://devtools/shared/protocol/Actor.js:103:15
[task 2020-08-22T15:28:13.174Z] 15:28:13     INFO - generateRequestHandlers/</handler/</<@resource://devtools/shared/protocol/Actor.js:199:30
[task 2020-08-22T15:28:13.174Z] 15:28:13     INFO - ensureDOMPromiseRejectionsProcessed@resource://testing-common/PromiseTestUtils.jsm:114:17
[task 2020-08-22T15:28:13.174Z] 15:28:13     INFO - nextTest@chrome://mochikit/content/browser-test.js:614:29
[task 2020-08-22T15:28:13.174Z] 15:28:13     INFO - async*testScope/test_finish/<@chrome://mochikit/content/browser-test.js:1512:25
[task 2020-08-22T15:28:13.174Z] 15:28:13     INFO - run@chrome://mochikit/content/browser-test.js:1427:9
[task 2020-08-22T15:28:13.174Z] 15:28:13     INFO - Rejection date: Sat Aug 22 2020 15:28:13 GMT+0000 (Greenwich Mean Time) - false == true - JS frame :: resource://testing-common/PromiseTestUtils.jsm :: assertNoUncaughtRejections :: line 265
[task 2020-08-22T15:28:13.174Z] 15:28:13     INFO - Stack trace:
[task 2020-08-22T15:28:13.174Z] 15:28:13     INFO - resource://testing-common/PromiseTestUtils.jsm:assertNoUncaughtRejections:265
[task 2020-08-22T15:28:13.174Z] 15:28:13     INFO - chrome://mochikit/content/browser-test.js:nextTest:615
[task 2020-08-22T15:28:13.174Z] 15:28:13     INFO - chrome://mochikit/content/browser-test.js:testScope/test_finish/<:1512
[task 2020-08-22T15:28:13.175Z] 15:28:13     INFO - chrome://mochikit/content/browser-test.js:run:1427
[task 2020-08-22T15:28:13.175Z] 15:28:13     INFO - Not taking screenshot here: see the one that was previously logged
[task 2020-08-22T15:28:13.175Z] 15:28:13     INFO - TEST-UNEXPECTED-FAIL | devtools/shared/resources/tests/browser_target_list_watchTargets.js | A promise chain failed to handle a rejection: can't access property "send", this.transport is null - stack: send@resource://devtools/server/devtools-server-connection.js:99:5
[task 2020-08-22T15:28:13.175Z] 15:28:13     INFO - writeError@resource://devtools/shared/protocol/Actor.js:103:15
[task 2020-08-22T15:28:13.175Z] 15:28:13     INFO - generateRequestHandlers/</handler/</<@resource://devtools/shared/protocol/Actor.js:199:30
[task 2020-08-22T15:28:13.175Z] 15:28:13     INFO - ensureDOMPromiseRejectionsProcessed@resource://testing-common/PromiseTestUtils.jsm:114:17
[task 2020-08-22T15:28:13.175Z] 15:28:13     INFO - nextTest@chrome://mochikit/content/browser-test.js:614:29
[task 2020-08-22T15:28:13.175Z] 15:28:13     INFO - async*testScope/test_finish/<@chrome://mochikit/content/browser-test.js:1512:25
[task 2020-08-22T15:28:13.175Z] 15:28:13     INFO - run@chrome://mochikit/content/browser-test.js:1427:9
[task 2020-08-22T15:28:13.175Z] 15:28:13     INFO - Rejection date: Sat Aug 22 2020 15:28:13 GMT+0000 (Greenwich Mean Time) - false == true - JS frame :: resource://testing-common/PromiseTestUtils.jsm :: assertNoUncaughtRejections :: line 265
[task 2020-08-22T15:28:13.175Z] 15:28:13     INFO - Stack trace:
[task 2020-08-22T15:28:13.175Z] 15:28:13     INFO - resource://testing-common/PromiseTestUtils.jsm:assertNoUncaughtRejections:265
[task 2020-08-22T15:28:13.175Z] 15:28:13     INFO - chrome://mochikit/content/browser-test.js:nextTest:615
[task 2020-08-22T15:28:13.175Z] 15:28:13     INFO - chrome://mochikit/content/browser-test.js:testScope/test_finish/<:1512
[task 2020-08-22T15:28:13.175Z] 15:28:13     INFO - chrome://mochikit/content/browser-test.js:run:1427
[task 2020-08-22T15:28:13.176Z] 15:28:13     INFO - GECKO(5284) | JavaScript error: resource://devtools/server/devtools-server-connection.js, line 99: TypeError: can't access property "send", this.transport is null
[task 2020-08-22T15:28:13.176Z] 15:28:13     INFO - GECKO(5284) | JavaScript error: resource://devtools/server/devtools-server-connection.js, line 99: TypeError: can't access property "send", this.transport is null
[task 2020-08-22T15:28:13.176Z] 15:28:13     INFO - GECKO(5284) | JavaScript error: resource://devtools/server/devtools-server-connection.js, line 99: TypeError: can't access property "send", this.transport is null
[task 2020-08-22T15:28:13.176Z] 15:28:13     INFO - Console message: [JavaScript Error: "TypeError: can't access property "send", this.transport is null" {file: "resource://devtools/server/devtools-server-connection.js" line: 99}]
[task 2020-08-22T15:28:13.176Z] 15:28:13     INFO - Console message: [JavaScript Error: "TypeError: can't access property "send", this.transport is null" {file: "resource://devtools/server/devtools-server-connection.js" line: 99}]
[task 2020-08-22T15:28:13.176Z] 15:28:13     INFO - Console message: [JavaScript Error: "TypeError: can't access property "send", this.transport is null" {file: "resource://devtools/server/devtools-server-connection.js" line: 99}]
[task 2020-08-22T15:28:13.181Z] 15:28:13     INFO - GECKO(5284) | MEMORY STAT | vsize 2104298MB | vsizeMaxContiguous 65924610MB | residentFast 337MB | heapAllocated 111MB
[task 2020-08-22T15:28:13.181Z] 15:28:13     INFO - TEST-OK | devtools/shared/resources/tests/browser_target_list_watchTargets.js | took 336ms

Comment 1

[Intermittent Failures Robot]

1 failures in 4100 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1

Platform breakdown:

• windows10-64: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1660618&startday=2020-08-17&endday=2020-08-23&tree=all

Comment 2

[Intermittent Failures Robot]

5 failures in 4046 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• try: 1
• mozilla-central: 1
• autoland: 3

Platform breakdown:

• linux1804-64: 2
• windows10-64: 3

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1660618&startday=2020-08-24&endday=2020-08-30&tree=all

Comment 3

[Intermittent Failures Robot]

4 failures in 2984 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 4

Platform breakdown:

• windows10-64: 4

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1660618&startday=2020-08-31&endday=2020-09-06&tree=all

Comment 4

[BugBot [:suhaib / :marco/ :calixte]]

https://wiki.mozilla.org/Bug_Triage#Intermittent_Test_Failure_Cleanup
For more information, please visit auto_nag documentation.