1683656 - Intermittent dom/events/test/test_mouse_capture_iframe.html | receive unexpected mousedown event

Status: RESOLVED FIXED

(Core :: DOM: UI Events & Focus Handling, defect, P5)

Description

[Treeherder Bug Filer]

Filed by: apavel [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer?job_id=325120865&repo=mozilla-central
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/bZJ587a3Qw-m4pi6WJ4Ihg/runs/0/artifacts/public/logs/live_backing.log

---

[task 2020-12-21T11:51:58.419Z] 11:51:58     INFO - TEST-START | dom/events/test/test_mouse_capture_iframe.html
[task 2020-12-21T11:51:58.638Z] 11:51:58     INFO - TEST-INFO | started process screentopng
[task 2020-12-21T11:51:59.026Z] 11:51:59     INFO - TEST-INFO | screentopng: exit 0
[task 2020-12-21T11:51:59.027Z] 11:51:59     INFO - Buffered messages logged at 11:51:58
[task 2020-12-21T11:51:59.027Z] 11:51:59     INFO - add_task | Entering test init
[task 2020-12-21T11:51:59.027Z] 11:51:59     INFO - add_task | Leaving test init
[task 2020-12-21T11:51:59.028Z] 11:51:59     INFO - add_task | Entering test testMouseCaptureOnXoriginIframe
[task 2020-12-21T11:51:59.028Z] 11:51:59     INFO - Buffered messages finished
[task 2020-12-21T11:51:59.028Z] 11:51:59     INFO - TEST-UNEXPECTED-FAIL | dom/events/test/test_mouse_capture_iframe.html | receive unexpected mousedown event 
[task 2020-12-21T11:51:59.028Z] 11:51:59     INFO -     SimpleTest.ok@SimpleTest/SimpleTest.js:417:16
[task 2020-12-21T11:51:59.028Z] 11:51:59     INFO -     unexpectedHandler@dom/events/test/test_mouse_capture_iframe.html:48:7
[task 2020-12-21T11:57:13.062Z] 11:57:13     INFO - Not taking screenshot here: see the one that was previously logged
[task 2020-12-21T11:57:13.062Z] 11:57:13     INFO - TEST-UNEXPECTED-FAIL | dom/events/test/test_mouse_capture_iframe.html | Test timed out. 
[task 2020-12-21T11:57:13.062Z] 11:57:13     INFO -     SimpleTest.ok@SimpleTest/SimpleTest.js:417:16
[task 2020-12-21T11:57:13.062Z] 11:57:13     INFO -     reportError@SimpleTest/TestRunner.js:143:22
[task 2020-12-21T11:57:13.062Z] 11:57:13     INFO -     TestRunner._checkForHangs@SimpleTest/TestRunner.js:165:18
[task 2020-12-21T11:57:14.062Z] 11:57:14     INFO - GECKO(2257) | MEMORY STAT | vsize 2619MB | residentFast 144MB | heapAllocated 13MB
[task 2020-12-21T11:57:14.064Z] 11:57:14     INFO - TEST-OK | dom/events/test/test_mouse_capture_iframe.html | took 315654ms
[task 2020-12-21T11:57:14.126Z] 11:57:14     INFO - TEST-START | dom/events/test/test_mouse_enterleave_iframe.html
[task 2020-12-21T11:58:37.249Z] 11:58:37     INFO - GECKO(2257) | 1608551917239	addons.xpi	ERROR	System addon update list error Error: got node name: html, expected: updates
[task 2020-12-21T12:02:43.066Z] 12:02:43     INFO - Not taking screenshot here: see the one that was previously logged
[task 2020-12-21T12:02:43.067Z] 12:02:43     INFO - Buffered messages logged at 11:57:14
[task 2020-12-21T12:02:43.067Z] 12:02:43     INFO - add_task | Entering test init
[task 2020-12-21T12:02:43.068Z] 12:02:43     INFO - Mouse moves to initial position
[task 2020-12-21T12:02:43.068Z] 12:02:43     INFO - add_task | Leaving test init
[task 2020-12-21T12:02:43.069Z] 12:02:43     INFO - add_task | Entering test testMouseEnterLeave
[task 2020-12-21T12:02:43.069Z] 12:02:43     INFO - Mouse moves to the div above iframe
[task 2020-12-21T12:02:43.070Z] 12:02:43     INFO - TEST-PASS | dom/events/test/test_mouse_enterleave_iframe.html | receive mouseenter 
[task 2020-12-21T12:02:43.070Z] 12:02:43     INFO - Mouse moves into iframe
[task 2020-12-21T12:02:43.071Z] 12:02:43     INFO - TEST-PASS | dom/events/test/test_mouse_enterleave_iframe.html | receive mouseleave 
[task 2020-12-21T12:02:43.071Z] 12:02:43     INFO - TEST-PASS | dom/events/test/test_mouse_enterleave_iframe.html | receive mouseenter 
[task 2020-12-21T12:02:43.072Z] 12:02:43     INFO - TEST-PASS | dom/events/test/test_mouse_enterleave_iframe.html | receive message {"eventType":"mouseenter","targetName":"html"} 
[task 2020-12-21T12:02:43.072Z] 12:02:43     INFO - TEST-PASS | dom/events/test/test_mouse_enterleave_iframe.html | receive message {"eventType":"mouseenter","targetName":"div"} 
[task 2020-12-21T12:02:43.073Z] 12:02:43     INFO - Mouse moves out from iframe to the div above iframe
[task 2020-12-21T12:02:43.073Z] 12:02:43     INFO - TEST-PASS | dom/events/test/test_mouse_enterleave_iframe.html | receive mouseleave 
[task 2020-12-21T12:02:43.074Z] 12:02:43     INFO - TEST-PASS | dom/events/test/test_mouse_enterleave_iframe.html | receive mouseenter 
[task 2020-12-21T12:02:43.075Z] 12:02:43     INFO - Buffered messages finished
[task 2020-12-21T12:02:43.075Z] 12:02:43     INFO - TEST-UNEXPECTED-FAIL | dom/events/test/test_mouse_enterleave_iframe.html | Test timed out. 
[task 2020-12-21T12:02:43.075Z] 12:02:43     INFO -     SimpleTest.ok@SimpleTest/SimpleTest.js:417:16
[task 2020-12-21T12:02:43.076Z] 12:02:43     INFO -     reportError@SimpleTest/TestRunner.js:143:22
[task 2020-12-21T12:02:43.076Z] 12:02:43     INFO -     TestRunner._checkForHangs@SimpleTest/TestRunner.js:165:18
[task 2020-12-21T12:02:44.064Z] 12:02:44     INFO - GECKO(2257) | MEMORY STAT | vsize 2619MB | residentFast 144MB | heapAllocated 12MB
[task 2020-12-21T12:02:44.073Z] 12:02:44     INFO - TEST-OK | dom/events/test/test_mouse_enterleave_iframe.html | took 329946ms```

Comment 2

[Intermittent Failures Robot]

20 failures in 1450 pushes (0.014 failures/push) were associated with this bug in the last 7 days.

This is the #32 most frequent failure this week.

Repository breakdown:

• mozilla-central: 15
• try: 3
• autoland: 2

Platform breakdown:

• linux1804-64-shippable-qr: 9
• linux1804-64-qr: 3
• windows10-64-shippable-qr: 3
• windows10-64-shippable: 5

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1683656&startday=2020-12-21&endday=2020-12-27&tree=all

Comment 3

[Intermittent Failures Robot]

18 failures in 525 pushes (0.034 failures/push) were associated with this bug in the last 7 days.

This is the #21 most frequent failure this week.

Repository breakdown:

• autoland: 5
• mozilla-central: 12
• try: 1

Platform breakdown:

• linux1804-64-qr: 5
• windows10-64-shippable-qr: 3
• windows10-64-shippable: 3
• linux1804-64-shippable-qr: 4
• linux1804-64-shippable: 3

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1683656&startday=2020-12-28&endday=2021-01-03&tree=all

Comment 4

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

Frequent failures, at least with Fission enabled. Could this be from bug 1680405?

Comment 5

[Intermittent Failures Robot]

28 failures in 2956 pushes (0.009 failures/push) were associated with this bug in the last 7 days.

This is the #38 most frequent failure this week.

Repository breakdown:

• autoland: 7
• mozilla-central: 20
• try: 1

Platform breakdown:

• linux1804-64-qr: 7
• windows10-64-shippable-qr: 4
• linux1804-64-shippable-qr: 12
• windows10-64-shippable: 4
• linux1804-64-shippable: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1683656&startday=2021-01-04&endday=2021-01-10&tree=all

Comment 6

[Intermittent Failures Robot]

28 failures in 3810 pushes (0.007 failures/push) were associated with this bug in the last 7 days.

This is the #35 most frequent failure this week.

Repository breakdown:

• try: 4
• mozilla-central: 20
• autoland: 4

Platform breakdown:

• linux1804-64-shippable-qr: 8
• linux1804-64-shippable: 3
• linux1804-64-qr: 5
• windows10-64-shippable: 7
• windows10-64-shippable-qr: 5

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1683656&startday=2021-01-11&endday=2021-01-17&tree=all

Comment 7

[Atila Butkovits]

There have been 37 failures in the last 7 days: https://treeherder.mozilla.org/intermittent-failures/bugdetails?startday=2021-01-13&endday=2021-01-20&tree=trunk&bug=1683656

Recent failure log: https://treeherder.mozilla.org/logviewer?job_id=327228769&repo=autoland&lineNumber=3077

Jens, could you assign someone to look into this?

Comment 8

[Edgar Chen [:edgar]]

I will take a look. Maybe some timing issue between pointer capture IPC and synthesized mouse event.

Comment 9

[Intermittent Failures Robot]

53 failures in 3488 pushes (0.015 failures/push) were associated with this bug in the last 7 days.

This is the #23 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-central: 38
• autoland: 9
• try: 6

Platform and build breakdown:

• windows10-64-shippable: 11
  • opt: 11
• linux1804-64-shippable-qr: 16
  • opt: 16
• linux1804-64-shippable: 1
  • opt: 1
• linux1804-64-qr: 11
  • opt: 11
• windows10-64-shippable-qr: 14
  • opt: 14

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1683656&startday=2021-01-18&endday=2021-01-24&tree=all

Comment 10

[Edgar Chen [:edgar]]

I could not reproduce this locally, so I trigger try run with adding some log.
The async synthesizing event dispatches the event to parent process and relays on APZ to assign the layer id to route to desired content process.
But APZ doesn't assign the layer id we expect, wait for apz stable before starting the test might help, I will try to verify it on try push.

Comment 11

[Edgar Chen [:edgar]]

Attachment: Bug 1683656 - Make dom/events/test/test_mouse_capture_iframe.html waiting for apz stable before starting tests;

test.events.async.enabled is set to ture in this test, the synthesized event
would be routed to apz, so wait apz getting stable before starting test to avoid
possible timing problem that causes intermittent failure.

Comment 12

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/ac3a43e5b435
Make dom/events/test/test_mouse_capture_iframe.html waiting for apz stable before starting tests; r=smaug

Comment 13

[Bogdan Tara[:bogdan_tara | bogdant]]

https://hg.mozilla.org/mozilla-central/rev/ac3a43e5b435

Comment 14

[Julien Cristau [:jcristau]]

https://hg.mozilla.org/releases/mozilla-beta/rev/3da315c646ae

Comment 15

[Intermittent Failures Robot]

19 failures in 3891 pushes (0.005 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 10
• autoland: 7
• mozilla-beta: 2

Platform and build breakdown:

• windows10-64-shippable: 3
  • opt: 3
• windows10-64-shippable-qr: 1
  • opt: 1
• linux1804-64-shippable-qr: 6
  • opt: 6
• linux1804-64-qr: 7
  • opt: 7
• linux1804-64-shippable: 2
  • opt: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1683656&startday=2021-01-25&endday=2021-01-31&tree=all