1721991 - Intermittent devtools/shared/commands/target/tests/browser_target_command_tab_workers_bfcache_navigation.js | Uncaught exception - at chrome://mochitests/content/browser/devtools/client/shared/test/shared-head.js:761 - Error: Failed waitFor(): Wait for

Status: RESOLVED FIXED

(DevTools :: General, defect)

Description

[Treeherder Bug Filer]

Filed by: smolnar [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer?job_id=346138008&repo=autoland
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/XLNOoLf3TQ-pEpJ2dSwNOQ/runs/0/artifacts/public/logs/live_backing.log

---

INFO - TEST-PASS | devtools/shared/commands/target/tests/browser_target_list_tab_workers_bfcache_navigation.js | The workers are never top level - 
[task 2021-07-23T09:46:19.672Z] 09:46:19     INFO - Navigate back to the first page
[task 2021-07-23T09:46:19.675Z] 09:46:19     INFO - Buffered messages finished
[task 2021-07-23T09:46:19.677Z] 09:46:19     INFO - TEST-UNEXPECTED-FAIL | devtools/shared/commands/target/tests/browser_target_list_tab_workers_bfcache_navigation.js | Uncaught exception - at chrome://mochitests/content/browser/devtools/client/shared/test/shared-head.js:761 - Error: Failed waitFor(): Wait for the target list to notify us about the first page workers, restored from the BF Cache
[task 2021-07-23T09:46:19.677Z] 09:46:19     INFO - Failed condition: () => targets.length === 4
[task 2021-07-23T09:46:19.677Z] 09:46:19     INFO - 
[task 2021-07-23T09:46:19.677Z] 09:46:19     INFO - Stack trace:
[task 2021-07-23T09:46:19.677Z] 09:46:19     INFO - waitFor@chrome://mochitests/content/browser/devtools/client/shared/test/shared-head.js:761:11
[task 2021-07-23T09:46:19.677Z] 09:46:19     INFO - async*@chrome://mochitests/content/browser/devtools/shared/commands/target/tests/browser_target_list_tab_workers_bfcache_navigation.js:107:9
[task 2021-07-23T09:46:19.677Z] 09:46:19     INFO - Async*Tester_execTest/<@chrome://mochikit/content/browser-test.js:1081:34
[task 2021-07-23T09:46:19.677Z] 09:46:19     INFO - Tester_execTest@chrome://mochikit/content/browser-test.js:1121:11
[task 2021-07-23T09:46:19.678Z] 09:46:19     INFO - nextTest/<@chrome://mochikit/content/browser-test.js:938:14
[task 2021-07-23T09:46:19.678Z] 09:46:19     INFO - SimpleTest.waitForFocus/<@chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:1041:13
[task 2021-07-23T09:46:19.678Z] 09:46:19     INFO - Leaving test bound 
[task 2021-07-23T09:46:19.679Z] 09:46:19     INFO - Removing tab.
[task 2021-07-23T09:46:19.679Z] 09:46:19     INFO - Waiting for event: 'TabClose' on [object XULElement].
[task 2021-07-23T09:46:19.680Z] 09:46:19     INFO - Got event: 'TabClose' on [object XULElement].
[task 2021-07-23T09:46:19.680Z] 09:46:19     INFO - GECKO(3949) | console.error: "Tried to send a 'target-destroyed-form' event on an already destroyed actor 'watcher'"
[task 2021-07-23T09:46:19.681Z] 09:46:19     INFO - Tab removed and finished closing
[task 2021-07-23T09:46:19.681Z] 09:46:19     INFO - Removing tab.
[task 2021-07-23T09:46:19.682Z] 09:46:19     INFO - Waiting for event: 'TabClose' on [object XULElement].
[task 2021-07-23T09:46:19.685Z] 09:46:19     INFO - Got event: 'TabClose' on [object XULElement].
[task 2021-07-23T09:46:19.685Z] 09:46:19     INFO - Tab removed and finished closing
[task 2021-07-23T09:46:19.685Z] 09:46:19     INFO - Removing tab.
[task 2021-07-23T09:46:19.686Z] 09:46:19     INFO - Waiting for event: 'TabClose' on [object XULElement].
[task 2021-07-23T09:46:19.687Z] 09:46:19     INFO - Got event: 'TabClose' on [object XULElement].
[task 2021-07-23T09:46:19.687Z] 09:46:19     INFO - Tab removed and finished closing
[task 2021-07-23T09:46:19.688Z] 09:46:19     INFO - TEST-PASS | devtools/shared/commands/target/tests/browser_target_list_tab_workers_bfcache_navigation.js | The main process DevToolsServer has no pending connection when the test ends - 
[task 2021-07-23T09:46:19.689Z] 09:46:19     INFO - GECKO(3949) | MEMORY STAT | vsize 20975448MB | residentFast 1413MB
[task 2021-07-23T09:46:19.689Z] 09:46:19     INFO - TEST-OK | devtools/shared/commands/target/tests/browser_target_list_tab_workers_bfcache_navigation.js | took 7292ms
[task 2021-07-23T09:46:19.725Z] 09:46:19     INFO - checking window state
[task 2021-07-23T09:46:19.766Z] 09:46:19     INFO - TEST-START | devtools/shared/commands/target/tests/browser_target_list_watchTargets.js

Comment 1

[Intermittent Failures Robot]

37 failures in 483 pushes (0.077 failures/push) were associated with this bug yesterday.

Repository breakdown:

• autoland: 26
• mozilla-central: 11

Platform and build breakdown:

• macosx1015-64-qr: 1
  • opt: 1
• windows10-64-qr: 1
  • opt: 1
• linux1804-64: 1
  • opt: 1
• linux1804-64-qr: 5
  • opt: 5
• linux1804-64-asan-qr: 18
  • opt: 18
• windows10-32-qr: 1
  • opt: 1
• linux1804-64-shippable-qr: 6
  • opt: 6
• windows10-64-asan-qr: 1
  • opt: 1
• linux1804-64-ccov: 1
  • opt: 1
• windows10-64-ccov-qr: 2
  • opt: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1721991&startday=2021-07-23&endday=2021-07-23&tree=all

Comment 2

[Intermittent Failures Robot]

66 failures in 2940 pushes (0.022 failures/push) were associated with this bug in the last 7 days.

This is the #11 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: 42
• mozilla-central: 23
• try: 1

Platform and build breakdown:

• macosx1015-64-qr: 1
  • opt: 1
• windows10-64-qr: 3
  • opt: 3
• linux1804-64: 1
  • opt: 1
• linux1804-64-qr: 8
  • opt: 8
• linux1804-64-asan-qr: 27
  • opt: 27
• windows10-32-qr: 1
  • opt: 1
• linux1804-64-shippable-qr: 14
  • opt: 14
• windows10-64-asan-qr: 2
  • opt: 2
• linux1804-64-ccov: 1
  • opt: 1
• windows10-64-ccov-qr: 4
  • opt: 4
• windows10-64-shippable-qr: 2
  • opt: 2
• linux1804-64-ccov-qr: 2
  • opt: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1721991&startday=2021-07-19&endday=2021-07-25&tree=all

Comment 3

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

Very frequent test failure from bug 1691588.

Comment 4

[Intermittent Failures Robot]

37 failures in 541 pushes (0.068 failures/push) were associated with this bug yesterday.

Repository breakdown:

• autoland: 32
• mozilla-central: 5

Platform and build breakdown:

• linux1804-64-shippable-qr: 4
  • opt: 4
• windows10-64-shippable-qr: 4
  • opt: 4
• linux1804-64-asan-qr: 8
  • opt: 8
• linux1804-64-qr: 16
  • opt: 16
• windows10-64-asan-qr: 1
  • opt: 1
• windows10-64-qr: 3
  • opt: 3
• windows10-64-ccov-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1721991&startday=2021-07-26&endday=2021-07-26&tree=all

Comment 5

[Intermittent Failures Robot]

28 failures in 566 pushes (0.049 failures/push) were associated with this bug yesterday.

Repository breakdown:

• autoland: 12
• try: 7
• mozilla-central: 9

Platform and build breakdown:

• linux1804-64-qr: 8
  • opt: 8
• linux1804-64-asan-qr: 9
  • opt: 9
• linux1804-64-shippable-qr: 4
  • opt: 4
• windows10-64-shippable-qr: 2
  • opt: 2
• linux1804-64-ccov-qr: 1
  • opt: 1
• windows10-64-ccov-qr: 2
  • opt: 2
• windows10-64-qr: 1
  • opt: 1
• windows10-64-devedition-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1721991&startday=2021-07-27&endday=2021-07-27&tree=all

Comment 6

[Alexandre Poirot [:ochameau] [PTO back August 21]]

This might relate to bug 1721859, but the WorkerDebugger interface isn't reliable when doing bfcache navigations.
It reports no worker when going back and restoring a page from the bfcache.

We should probably disable these assertions, which fail intermittently, until we investigate this.

Comment 7

[Alexandre Poirot [:ochameau] [PTO back August 21]]

Attachment: Bug 1721991 - [devtools] Disable failing assertion of browser_target_list_tab_workers_bfcache_navigation.js.

These assertion fails quite frequently with fission and even more with server side targets.
We should investigate that in bug 1722709 before re-enabling this.

Comment 8

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/33d1a3e07c4b
[devtools] Disable failing assertion of browser_target_list_tab_workers_bfcache_navigation.js. r=nchevobbe

Comment 9

[Dorel Luca [:dluca]]

https://hg.mozilla.org/mozilla-central/rev/33d1a3e07c4b

Comment 10

[Cosmin Sabou [:CosminS]]

Still failing: https://treeherder.mozilla.org/logviewer?job_id=346659099&repo=mozilla-central

Comment 11

[Intermittent Failures Robot]

44 failures in 591 pushes (0.074 failures/push) were associated with this bug yesterday.

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

Repository breakdown:

• autoland: 30
• try: 1
• mozilla-central: 13

Platform and build breakdown:

• linux1804-64-qr: 10
  • opt: 10
• windows10-64-shippable-qr: 3
  • opt: 3
• linux1804-64-shippable-qr: 8
  • opt: 8
• windows10-64-qr: 3
  • opt: 3
• windows10-64-asan-qr: 4
  • opt: 4
• linux1804-64-asan-qr: 9
  • opt: 9
• linux1804-64-ccov-qr: 3
  • opt: 3
• windows10-64-ccov-qr: 2
  • opt: 2
• linux1804-64: 1
  • opt: 1
• linux1804-64-ccov: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1721991&startday=2021-07-28&endday=2021-07-28&tree=all

Comment 12

[Intermittent Failures Robot]

20 failures in 630 pushes (0.032 failures/push) were associated with this bug yesterday.

Repository breakdown:

• mozilla-central: 7
• autoland: 12
• try: 1

Platform and build breakdown:

• linux1804-64-ccov-qr: 2
  • opt: 2
• linux1804-64-qr: 4
  • opt: 4
• linux1804-64-asan-qr: 9
  • opt: 9
• windows10-64-asan-qr: 4
  • opt: 4
• linux1804-64-shippable-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1721991&startday=2021-07-29&endday=2021-07-29&tree=all

Comment 13

[Nicolas Chevobbe [:nchevobbe]]

Attachment: Bug 1721991 - [devtools] Wait until page is loaded before going back in browser_target_list_tab_workers_bfcache_navigation.js. r=jdescottes.

it could happen that the page wasn't loaded yet, which would
make the call to gBrowser.goBack() a no-op and messing up
the rest of the test.

Comment 14

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/93df8b660826
[devtools] Wait until page is loaded before going back in browser_target_list_tab_workers_bfcache_navigation.js. r=jdescottes.

Comment 15

[Sandor Molnar[:smolnar]]

https://hg.mozilla.org/mozilla-central/rev/93df8b660826

Comment 16

[Intermittent Failures Robot]

30 failures in 622 pushes (0.048 failures/push) were associated with this bug yesterday.

Repository breakdown:

• autoland: 11
• mozilla-central: 18
• try: 1

Platform and build breakdown:

• linux1804-64-qr: 1
  • opt: 1
• linux1804-64-asan-qr: 6
  • opt: 6
• linux1804-64-shippable-qr: 6
  • opt: 6
• windows10-64-asan-qr: 3
  • opt: 3
• linux1804-64-ccov-qr: 9
  • opt: 9
• windows10-64-ccov-qr: 2
  • opt: 2
• macosx1015-64-qr: 3
  • opt: 3

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1721991&startday=2021-07-30&endday=2021-07-30&tree=all

Comment 17

[Intermittent Failures Robot]

160 failures in 3131 pushes (0.051 failures/push) were associated with this bug in the last 7 days.

This is the #2 most frequent failure this week.

** This failure happened more than 75 times this week! Resolving this bug is a very high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 1 week, the affected test(s) may be disabled. **

Repository breakdown:

• mozilla-central: 52
• autoland: 98
• try: 10

Platform and build breakdown:

• linux1804-64-asan-qr: 41
  • opt: 41
• linux1804-64-qr: 39
  • opt: 39
• windows10-64-asan-qr: 12
  • opt: 12
• linux1804-64-shippable-qr: 23
  • opt: 23
• windows10-64-shippable-qr: 10
  • opt: 10
• windows10-64-qr: 7
  • opt: 7
• windows10-64-ccov-qr: 7
  • opt: 7
• linux1804-64-ccov-qr: 15
  • opt: 15
• windows10-64-devedition-qr: 1
  • opt: 1
• linux1804-64: 1
  • opt: 1
• linux1804-64-ccov: 1
  • opt: 1
• macosx1015-64-qr: 3
  • opt: 3

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1721991&startday=2021-07-26&endday=2021-08-01&tree=all

Comment 18

[Intermittent Failures Robot]

1 failures in 3312 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1

Platform and build breakdown:

• macosx1015-64-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1721991&startday=2022-06-27&endday=2022-07-03&tree=all