1723315 - Intermittent gfx/layers/apz/test/mochitest/browser_test_scrollbar_in_extension_popup_window.js | Contents in popup window opened by extension should be same regardless of the APZ state in the window - Got "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAMg

Status: RESOLVED INCOMPLETE

(Core :: Panning and Zooming, defect, P5)

Description

[Treeherder Bug Filer]

Filed by: abutkovits [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer?job_id=347000870&repo=autoland
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/LxO8z_IYTGKq-NU7BwpjaA/runs/0/artifacts/public/logs/live_backing.log

---

[task 2021-07-31T17:23:57.624Z] 17:23:57     INFO - TEST-START | gfx/layers/apz/test/mochitest/browser_test_scrollbar_in_extension_popup_window.js
[task 2021-07-31T17:23:57.634Z] 17:23:57     INFO - GECKO(3900) | [SimpleTest.requestLongerTimeout()] ignoring request, maybe you meant to call the global `requestLongerTimeout` instead?
[task 2021-07-31T17:24:01.129Z] 17:24:01     INFO - TEST-INFO | started process screenshot
[task 2021-07-31T17:24:01.342Z] 17:24:01     INFO - TEST-INFO | screenshot: exit 0
[task 2021-07-31T17:24:01.342Z] 17:24:01     INFO - Buffered messages logged at 17:23:57
[task 2021-07-31T17:24:01.343Z] 17:24:01     INFO - Entering test bound 
[task 2021-07-31T17:24:01.343Z] 17:24:01     INFO - Extension loaded
[task 2021-07-31T17:24:01.343Z] 17:24:01     INFO - Buffered messages logged at 17:23:58
[task 2021-07-31T17:24:01.344Z] 17:24:01     INFO - TEST-PASS | gfx/layers/apz/test/mochitest/browser_test_scrollbar_in_extension_popup_window.js | Expect widget not to be overflowed - true == true - 
[task 2021-07-31T17:24:01.344Z] 17:24:01     INFO - Buffered messages logged at 17:23:59
[task 2021-07-31T17:24:01.344Z] 17:24:01     INFO - TEST-PASS | gfx/layers/apz/test/mochitest/browser_test_scrollbar_in_extension_popup_window.js | browserAction popup has been closed - 
[task 2021-07-31T17:24:01.345Z] 17:24:01     INFO - Buffered messages logged at 17:24:00
[task 2021-07-31T17:24:01.345Z] 17:24:01     INFO - TEST-PASS | gfx/layers/apz/test/mochitest/browser_test_scrollbar_in_extension_popup_window.js | Expect widget not to be overflowed - true == true - 
[task 2021-07-31T17:24:01.346Z] 17:24:01     INFO - TEST-PASS | gfx/layers/apz/test/mochitest/browser_test_scrollbar_in_extension_popup_window.js | browserAction popup has been closed - 
[task 2021-07-31T17:24:01.346Z] 17:24:01     INFO - Buffered messages finished
[task 2021-07-31T17:24:01.352Z] 17:24:01     INFO - TEST-UNEXPECTED-FAIL | gfx/layers/apz/test/mochitest/browser_test_scrollbar_in_extension_popup_window.js | Contents in popup window opened by extension should be same regardless of the APZ state in the window - Got "data:image/png;base64,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", expected "data:image/png;base64,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"
[task 2021-07-31T17:24:01.352Z] 17:24:01     INFO - Stack trace:
[task 2021-07-31T17:24:01.353Z] 17:24:01     INFO - chrome://mochikit/content/browser-test.js:test_is:1371
[task 2021-07-31T17:24:01.353Z] 17:24:01     INFO - chrome://mochitests/content/browser/gfx/layers/apz/test/mochitest/browser_test_scrollbar_in_extension_popup_window.js:null:108
[task 2021-07-31T17:24:01.353Z] 17:24:01     INFO - Leaving test bound 

Comment 1

[Intermittent Failures Robot]

1 failures in 3131 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1

Platform and build breakdown:

• windows10-64-asan-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1723315&startday=2021-07-26&endday=2021-08-01&tree=all

Comment 2

[Alexandru Michis [:malexandru]]

This started to fail with a high frequency on Windows 10 x64 2004 asan WebRender opt after Bug 1723574 landed: https://treeherder.mozilla.org/jobs?repo=autoland&fromchange=f3af2c2935769be98cd75f450eeded419fa9171d&searchStr=windows%2C10%2Cx64%2C2004%2Casan%2Cwebrender%2Copt%2Cmochitests%2Ctest-windows10-64-2004-asan-qr%2Fopt-mochitest-browser-chrome-e10s&group_state=expanded&tochange=c7fcc6914b7cb3a216fe0e0d18a4d1ae10d0f4c7

masterwayz, could you please take a look?

Comment 3

[Michelle Goossens [:masterwayz]]

Attachment: Bug 1723315 - Disable browser_test_scrollbar_in_extension_popup_window.js for intermittent failures on Windows 10 x64 2004 r=jmaher

Comment 4

[Michelle Goossens [:masterwayz]]

Hi :botond, who are the developer(s) who work on these tests?
We should investigate why suddenly on Windows 10 2004 on Azure this test became an intermittent failure.

Comment 5

[Botond Ballo [:botond]]

This test was written by Hiro, forwarding needinfo in case he has any ideas

Comment 6

[Hiroyuki Ikezoe (:hiro)]

Attachment: A screenshot with apz.popups.enabled=false

Comment 7

[Hiroyuki Ikezoe (:hiro)]

Attachment: A screenshot with apz.popups.enabled=true

Comment 8

[Hiroyuki Ikezoe (:hiro)]

Attachment: A screenshot with apz.popups.enabled=false

Comment 9

[Hiroyuki Ikezoe (:hiro)]

So, the test originally aimed to test whether the scrollbar on popup is drawn properly. In fact both scrollbars correctly appear. But as you can see the content inside the popup, it's <ul><li>1</li><li>2</li>..., is not properly rendered with apz_popups.enabled=false. I am guessing this is a webrender issue.

EDITED: I did mistake initially the problematic one was rendered with apz_popups.enabled=true, but actually it's rendered with apz_popups.enabled=false.

Comment 10

[Cristina Cozmuta (:CrissCozmuta)]

https://hg.mozilla.org/mozilla-central/rev/ab3f4e782d44

Comment 11

[Hiroyuki Ikezoe (:hiro)]

Though I can't reproduce the failure locally on my Windows laptop, a hypothesis I can think of is the snapshot was taken before all pending paints have been processed. As per a try run it appears to be correct. I am going to ask sotaro to review the change.

(That's said I don't still understand why it only happens with disabling APZ)

Comment 12

[Hiroyuki Ikezoe (:hiro)]

Attachment: Bug 1723315 - Ensure there's no pending paint requests before taking a snapshot. r?sotaro

There's no handy way to use functions in paint_listener.js inside extension's
popup document's context, if paint_listener.js gets loaded with a script tag
inside the document, it doesn't allow us using nsIDOMWindowUtils since it is in
extension's privilege. Running a similar chunk of the function code in
SpecialPowers.spawn is the simplest way to use the function.

Comment 13

[Intermittent Failures Robot]

17 failures in 679 pushes (0.025 failures/push) were associated with this bug yesterday.

Repository breakdown:

• autoland: 14
• mozilla-central: 1
• try: 2

Platform and build breakdown:

• windows10-64-2004-asan-qr: 13
  • opt: 13
• windows10-64-2004-qr: 4
  • debug: 4

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1723315&startday=2021-08-24&endday=2021-08-24&tree=all

Comment 14

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/3ad99165adbd
Ensure there's no pending paint requests before taking a snapshot. r=sotaro

Comment 15

[Natalia Csoregi [:nataliaCs]]

https://hg.mozilla.org/mozilla-central/rev/3ad99165adbd

Comment 16

[Intermittent Failures Robot]

18 failures in 2580 pushes (0.007 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 15
• mozilla-central: 1
• try: 2

Platform and build breakdown:

• windows10-64-2004-asan-qr: 13
  • opt: 13
• windows10-64-2004-qr: 5
  • debug: 5

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1723315&startday=2021-08-23&endday=2021-08-29&tree=all

Comment 17

[Ryan VanderMeulen [:RyanVM]]

https://hg.mozilla.org/releases/mozilla-esr91/rev/fae9ca3346ca

Comment 18

[Cristian Tuns]

Recent failure log: https://treeherder.mozilla.org/logviewer?job_id=353620471&repo=mozilla-esr91&lineNumber=70439

Comment 19

[Intermittent Failures Robot]

1 failures in 3626 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-esr91: 1

Platform and build breakdown:

• windows10-32-2004-qr: 1
  • debug: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1723315&startday=2021-10-04&endday=2021-10-10&tree=all

Comment 20

[Intermittent Failures Robot]

3 failures in 3315 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-esr91: 3

Platform and build breakdown:

• windows10-64-2004-qr: 3
  • debug: 3

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1723315&startday=2021-10-11&endday=2021-10-17&tree=all

Comment 21

[Intermittent Failures Robot]

1 failures in 3186 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-esr91: 1

Platform and build breakdown:

• windows10-64-2004-qr: 1
  • debug: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1723315&startday=2021-10-18&endday=2021-10-24&tree=all

Comment 22

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

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

Comment 23

[Intermittent Failures Robot]

1 failures in 2819 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-esr91: 1

Platform and build breakdown:

• windows10-32-2004-qr: 1
  • debug: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1723315&startday=2021-11-22&endday=2021-11-28&tree=all