1594617 - Intermittent devtools/client/debugger/test/mochitest/browser_dbg-windowless-service-workers.js | A promise chain failed to handle a rejection: target is null - stack: attachTargets/<@resource://devtools/client/debugger/src/client/firefox/targets.js:27:37

Status: RESOLVED WORKSFORME

(DevTools :: Debugger, defect, P5)

Description

[Treeherder Bug Filer]

Filed by: ccoroiu [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer.html#?job_id=274957144&repo=autoland
Full log: https://queue.taskcluster.net/v1/task/V62AW9-dTxWD8MJ38lqmRw/runs/0/artifacts/public/logs/live_backing.log

---

task 2019-11-07T00:22:27.858Z] 00:22:27 INFO - TEST-PASS | devtools/client/debugger/test/mochitest/browser_dbg-windowless-service-workers.js | Have 0 threads -
[task 2019-11-07T00:22:27.858Z] 00:22:27 INFO - Buffered messages finished
[task 2019-11-07T00:22:27.858Z] 00:22:27 INFO - TEST-UNEXPECTED-FAIL | devtools/client/debugger/test/mochitest/browser_dbg-windowless-service-workers.js | A promise chain failed to handle a rejection: target is null - stack: attachTargets/<@resource://devtools/client/debugger/src/client/firefox/targets.js:27:37
[task 2019-11-07T00:22:27.858Z] 00:22:27 INFO - attachTargets@resource://devtools/client/debugger/src/client/firefox/targets.js:27:22
[task 2019-11-07T00:22:27.858Z] 00:22:27 INFO - updateWorkerTargets@resource://devtools/client/debugger/src/client/firefox/targets.js:97:9
[task 2019-11-07T00:22:27.858Z] 00:22:27 INFO - asyncupdateTargets@resource://devtools/client/debugger/src/client/firefox/targets.js:119:11
[task 2019-11-07T00:22:27.858Z] 00:22:27 INFO - updateThreads@resource://devtools/client/debugger/src/client/firefox/commands.js:474:36
[task 2019-11-07T00:22:27.858Z] 00:22:27 INFO - fetchThreads@resource://devtools/client/debugger/src/client/firefox/commands.js:465:10
[task 2019-11-07T00:22:27.858Z] 00:22:27 INFO - updateThreads/<@resource://devtools/client/debugger/src/actions/threads.js:25:34
[task 2019-11-07T00:22:27.858Z] 00:22:27 INFO - thunk/</</<@resource://devtools/client/debugger/src/actions/utils/middleware/thunk.js:29:45
[task 2019-11-07T00:22:27.858Z] 00:22:27 INFO - bindActionCreator/<@resource://devtools/client/shared/vendor/redux.js:644:12
[task 2019-11-07T00:22:27.858Z] 00:22:27 INFO - threadListChanged@resource://devtools/client/debugger/src/client/firefox/events.js:118:11
[task 2019-11-07T00:22:27.858Z] 00:22:27 INFO - setupEvents/<@resource://devtools/client/debugger/src/client/firefox/events.js:53:56
[task 2019-11-07T00:22:27.858Z] 00:22:27 INFO - emit@resource://devtools/shared/event-emitter.js:190:24
[task 2019-11-07T00:22:27.858Z] 00:22:27 INFO - emit@resource://devtools/shared/event-emitter.js:271:18
[task 2019-11-07T00:22:27.858Z] 00:22:27 INFO - onPacket@resource://devtools/shared/protocol/Front.js:270:13
[task 2019-11-07T00:22:27.858Z] 00:22:27 INFO - onPacket@resource://devtools/shared/client/debugger-client.js:583:13
[task 2019-11-07T00:22:27.858Z] 00:22:27 INFO - send/<@resource://devtools/shared/transport/local-transport.js:70:25
[task 2019-11-07T00:22:27.859Z] 00:22:27 INFO - exports.makeInfallible/<@resource://devtools/shared/ThreadSafeDevToolsUtils.js:111:22
[task 2019-11-07T00:22:27.859Z] 00:22:27 INFO - DevToolsUtils.executeSoonexports.executeSoon@resource://devtools/shared/DevToolsUtils.js:62:21
[task 2019-11-07T00:22:27.859Z] 00:22:27 INFO - send@resource://devtools/shared/transport/local-transport.js:58:21
[task 2019-11-07T00:22:27.859Z] 00:22:27 INFO - send@resource://devtools/server/debugger-server-connection.js:89:20
[task 2019-11-07T00:22:27.859Z] 00:22:27 INFO - _sendEvent@resource://devtools/shared/protocol/Actor.js:72:15
[task 2019-11-07T00:22:27.859Z] 00:22:27 INFO - initialize/<@resource://devtools/shared/protocol/Actor.js:46:16
[task 2019-11-07T00:22:27.859Z] 00:22:27 INFO - emit@resource://devtools/shared/event-emitter.js:190:24
[task 2019-11-07T00:22:27.859Z] 00:22:27 INFO - emit@resource://devtools/shared/event-emitter.js:271:18
[task 2019-11-07T00:22:27.859Z] 00:22:27 INFO - onChange@resource://devtools/server/actors/worker/service-worker-registration.js:69:12
[task 2019-11-07T00:22:27.859Z] 00:22:27 INFO - Rejection date: Thu Nov 07 2019 00:22:27 GMT+0000 (Greenwich Mean Time) - false == true - JS frame :: resource://testing-common/PromiseTestUtils.jsm :: assertNoUncaughtRejections :: line 265
[task 2019-11-07T00:22:27.859Z] 00:22:27 INFO - Stack trace:
[task 2019-11-07T00:22:27.859Z] 00:22:27 INFO - resource://testing-common/PromiseTestUtils.jsm:assertNoUncaughtRejections:265
[task 2019-11-07T00:22:27.859Z] 00:22:27 INFO - chrome://mochikit/content/browser-test.js:Tester_execTest/<:1100
[task 2019-11-07T00:22:27.859Z] 00:22:27 INFO - chrome://mochikit/content/browser-test.js:Tester_execTest:1104
[task 2019-11-07T00:22:27.859Z] 00:22:27 INFO - chrome://mochikit/content/browser-test.js:nextTest/<:932
[task 2019-11-07T00:22:27.859Z] 00:22:27 INFO - chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:SimpleTest.waitForFocus/waitForFocusInner/focusedOrLoaded/<:805
[task 2019-11-07T00:22:27.859Z] 00:22:27 INFO - Leaving test bound

Comment 1

[Intermittent Failures Robot]

21 failures in 4850 pushes (0.004 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 19
• mozilla-central: 2

Platform breakdown:

• macosx1014-64: 6
• windows7-32: 7
• windows10-64: 6
• linux64: 1
• windows10-aarch64: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1594617&startday=2019-11-04&endday=2019-11-10&tree=all

Comment 2

[Intermittent Failures Robot]

48 failures in 4207 pushes (0.011 failures/push) were associated with this bug in the last 7 days.

This is the #36 most frequent failure this week.

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. **

Repository breakdown:

• mozilla-inbound: 1
• autoland: 40
• mozilla-central: 6
• try: 1

Platform breakdown:

• windows7-32: 30
• macosx1014-64: 8
• windows10-64: 9
• linux64: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1594617&startday=2019-11-11&endday=2019-11-17&tree=all

Comment 3

[Andreea Pavel [:apavel]]

Brian please take a look at this.

There are 53 total failures in the last 7 days and 120 since Nov 3rd, majority on windows10-64 and windows7-32 debug and a few on linux64 and macosx1014-64 debug.

Recent failure log: https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=277853191&repo=mozilla-central&lineNumber=26928

[task 2019-11-23T23:08:38.553Z] 23:08:38 INFO - TEST-START | devtools/client/debugger/test/mochitest/browser_dbg-windowless-service-workers.js
[task 2019-11-23T23:08:38.609Z] 23:08:38 INFO - GECKO(1113) | ++DOCSHELL 0x7f4474e47800 == 2 [pid = 1243] [id = {cbface03-4a1d-4a97-b397-e68ce2347969}]
[task 2019-11-23T23:08:38.610Z] 23:08:38 INFO - GECKO(1113) | ++DOMWINDOW == 4 (0x7f4477618100) [pid = 1243] [serial = 308] [outer = (nil)]
[task 2019-11-23T23:08:38.610Z] 23:08:38 INFO - GECKO(1113) | ++DOMWINDOW == 5 (0x7f4475138c00) [pid = 1243] [serial = 309] [outer = 0x7f4477618100]
[task 2019-11-23T23:08:38.751Z] 23:08:38 INFO - GECKO(1113) | ++DOMWINDOW == 6 (0x7f44751ebc00) [pid = 1243] [serial = 310] [outer = 0x7f4477618100]
[task 2019-11-23T23:08:38.912Z] 23:08:38 INFO - GECKO(1113) | ++DOCSHELL 0x7f3492f4d000 == 7 [pid = 1113] [id = {5a3b253e-108a-463d-91b9-a815d3071080}]

[task 2019-11-23T23:08:58.290Z] 23:08:58 INFO - TEST-PASS | devtools/client/debugger/test/mochitest/browser_dbg-windowless-service-workers.js | Frame paused at 14, but expected 14 -
[task 2019-11-23T23:08:58.291Z] 23:08:58 INFO - TEST-PASS | devtools/client/debugger/test/mochitest/browser_dbg-windowless-service-workers.js | Have 1 threads -
[task 2019-11-23T23:08:58.291Z] 23:08:58 INFO - Resuming from 14
[task 2019-11-23T23:08:58.292Z] 23:08:58 INFO - Invoking in tab: unregisterWorker()
[task 2019-11-23T23:08:58.292Z] 23:08:58 INFO - Buffered messages logged at 23:08:57
[task 2019-11-23T23:08:58.293Z] 23:08:58 INFO - Console message: [JavaScript Error: "TypeError: target is null" {file: "resource://devtools/client/debugger/src/client/firefox/targets.js" line: 25}]
[task 2019-11-23T23:08:58.293Z] 23:08:58 INFO - TEST-PASS | devtools/client/debugger/test/mochitest/browser_dbg-windowless-service-workers.js | Have 0 threads -
[task 2019-11-23T23:08:58.294Z] 23:08:58 INFO - Buffered messages finished
[task 2019-11-23T23:08:58.296Z] 23:08:58 INFO - TEST-UNEXPECTED-FAIL | devtools/client/debugger/test/mochitest/browser_dbg-windowless-service-workers.js | A promise chain failed to handle a rejection: target is null - stack: attachTargets/<@resource://devtools/client/debugger/src/client/firefox/targets.js:25:37
[task 2019-11-23T23:08:58.296Z] 23:08:58 INFO - attachTargets@resource://devtools/client/debugger/src/client/firefox/targets.js:25:22
[task 2019-11-23T23:08:58.296Z] 23:08:58 INFO - updateTargets@resource://devtools/client/debugger/src/client/firefox/targets.js:145:9
[task 2019-11-23T23:08:58.296Z] 23:08:58 INFO - asyncfetchThreads@resource://devtools/client/debugger/src/client/firefox/commands.js:448:36
[task 2019-11-23T23:08:58.296Z] 23:08:58 INFO - updateThreads/<@resource://devtools/client/debugger/src/actions/threads.js:25:34
[task 2019-11-23T23:08:58.296Z] 23:08:58 INFO - thunk/</</<@resource://devtools/client/debugger/src/actions/utils/middleware/thunk.js:29:45
[task 2019-11-23T23:08:58.297Z] 23:08:58 INFO - bindActionCreator/<@resource://devtools/client/shared/vendor/redux.js:644:12
[task 2019-11-23T23:08:58.297Z] 23:08:58 INFO - threadListChanged@resource://devtools/client/debugger/src/client/firefox/events.js:119:11
[task 2019-11-23T23:08:58.297Z] 23:08:58 INFO - setupEvents/<@resource://devtools/client/debugger/src/client/firefox/events.js:59:56
[task 2019-11-23T23:08:58.297Z] 23:08:58 INFO - emit@resource://devtools/shared/event-emitter.js:190:24
[task 2019-11-23T23:08:58.297Z] 23:08:58 INFO - emit@resource://devtools/shared/event-emitter.js:271:18
[task 2019-11-23T23:08:58.297Z] 23:08:58 INFO - onPacket@resource://devtools/shared/protocol/Front.js:252:13
[task 2019-11-23T23:08:58.297Z] 23:08:58 INFO - onPacket@resource://devtools/shared/client/debugger-client.js:583:13
[task 2019-11-23T23:08:58.298Z] 23:08:58 INFO - send/<@resource://devtools/shared/transport/local-transport.js:70:25
[task 2019-11-23T23:08:58.298Z] 23:08:58 INFO - exports.makeInfallible/<@resource://devtools/shared/ThreadSafeDevToolsUtils.js:111:22
[task 2019-11-23T23:08:58.298Z] 23:08:58 INFO - DevToolsUtils.executeSoonexports.executeSoon@resource://devtools/shared/DevToolsUtils.js:62:21
[task 2019-11-23T23:08:58.298Z] 23:08:58 INFO - send@resource://devtools/shared/transport/local-transport.js:58:21
[task 2019-11-23T23:08:58.298Z] 23:08:58 INFO - send@resource://devtools/server/debugger-server-connection.js:89:20
[task 2019-11-23T23:08:58.298Z] 23:08:58 INFO - _sendEvent@resource://devtools/shared/protocol/Actor.js:72:15
[task 2019-11-23T23:08:58.298Z] 23:08:58 INFO - initialize/<@resource://devtools/shared/protocol/Actor.js:46:16
[task 2019-11-23T23:08:58.299Z] 23:08:58 INFO - emit@resource://devtools/shared/event-emitter.js:190:24
[task 2019-11-23T23:08:58.299Z] 23:08:58 INFO - emit@resource://devtools/shared/event-emitter.js:271:18
[task 2019-11-23T23:08:58.299Z] 23:08:58 INFO - onChange@resource://devtools/server/actors/worker/service-worker-registration.js:69:12
[task 2019-11-23T23:08:58.299Z] 23:08:58 INFO - Rejection date: Sat Nov 23 2019 23:08:57 GMT+0000 (Coordinated Universal Time) - false == true - JS frame :: resource://testing-common/PromiseTestUtils.jsm :: assertNoUncaughtRejections :: line 265

Comment 4

[Andreea Pavel [:apavel]]

Attachment: Bug 1594617 - disable browser_dbg-windowless-service-workers.js on win debug to reduce failure rate r=jmaher

Comment 5

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/7e7b7289fc8a
disable browser_dbg-windowless-service-workers.js on win debug to reduce failure rate r=jmaher

Comment 6

[Intermittent Failures Robot]

55 failures in 5444 pushes (0.01 failures/push) were associated with this bug in the last 7 days.

This is the #16 most frequent failure this week.

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. **

Repository breakdown:

• autoland: 43
• mozilla-inbound: 1
• mozilla-central: 10
• try: 1

Platform breakdown:

• windows10-64: 10
• windows7-32: 28
• macosx1014-64: 11
• linux64: 6

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1594617&startday=2019-11-18&endday=2019-11-24&tree=all

Comment 7

[Oana Pop-Rus]

https://hg.mozilla.org/mozilla-central/rev/7e7b7289fc8a

Comment 8

[Intermittent Failures Robot]

21 failures in 899 pushes (0.023 failures/push) were associated with this bug yesterday.

Repository breakdown:

• try: 12
• autoland: 7
• mozilla-central: 2

Platform breakdown:

• linux64: 11
• linux64-qr: 3
• macosx1014-64: 7

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1594617&startday=2019-11-26&endday=2019-11-26&tree=all

Comment 9

[Intermittent Failures Robot]

72 failures in 4331 pushes (0.017 failures/push) were associated with this bug in the last 7 days.

This is the #8 most frequent failure this week.

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. **

Repository breakdown:

• autoland: 50
• try: 18
• mozilla-central: 4

Platform breakdown:

• macosx1014-64: 47
• linux64: 19
• linux64-qr: 3
• windows7-32: 1
• windows10-64: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1594617&startday=2019-11-25&endday=2019-12-01&tree=all

Comment 10

[Andreea Pavel [:apavel]]

Joel this is now failing linux debug, win asan (very few failures) and mac debug. Should we adjust the disabling condition here?

Comment 11

[Brian Hackett [Laid off!]]

I'll look at this in the next day or two.

Comment 12

[Andreea Pavel [:apavel]]

Thank you, I'll remove the ni for Joel.

Comment 13

[Intermittent Failures Robot]

19 failures in 892 pushes (0.021 failures/push) were associated with this bug yesterday.

Repository breakdown:

• try: 5
• autoland: 14

Platform breakdown:

• linux64: 5
• macosx1014-64: 14

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1594617&startday=2019-12-02&endday=2019-12-02&tree=all

Comment 14

[Brian Hackett [Laid off!]]

Attachment: Bug 1594617 - Watch for missing targets, r=jlast.

Comment 15

[Brian Hackett [Laid off!]]

root.getWorker() can return null if it can't find a worker of the specified ID, which can happen at any time as the debugger client is operating asynchronously.

Comment 16

[Intermittent Failures Robot]

16 failures in 1064 pushes (0.015 failures/push) were associated with this bug yesterday.

Repository breakdown:

• autoland: 13
• try: 2
• mozilla-central: 1

Platform breakdown:

• macosx1014-64: 10
• linux64: 6

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1594617&startday=2019-12-03&endday=2019-12-03&tree=all

Comment 17

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/cc960db62138
Watch for missing targets, r=jlast.

Comment 18

[Andreea Pavel [:apavel]]

https://hg.mozilla.org/mozilla-central/rev/cc960db62138

Comment 19

[Intermittent Failures Robot]

63 failures in 5144 pushes (0.012 failures/push) were associated with this bug in the last 7 days.

This is the #11 most frequent failure this week.

** This test has failed more than 150 times in the last 21 days. It should be disabled until it can be fixed. **

Repository breakdown:

• try: 14
• autoland: 42
• mozilla-central: 7

Platform breakdown:

• linux64: 20
• macosx1014-64: 35
• macosx1014-64-shippable: 2
• windows7-32-shippable: 2
• windows7-32: 1
• linux64-ccov: 1
• windows10-64-ccov: 1
• windows10-64-shippable: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1594617&startday=2019-12-02&endday=2019-12-08&tree=all

Comment 20

[Daniel Varga [:dvarga]]

This is again on disable list, but all the new failures were on try or miss classifications, removing the disable recommended tag.