1864459 - Intermittent /webmessaging/broadcastchannel/blobs.html | single tracking bug

Status: RESOLVED FIXED

(Core :: DOM: Core & HTML, defect)

Description

[Treeherder Bug Filer]

Filed by: sstanca [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer?job_id=436030293&repo=autoland
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/Gmhle87vTk-5hZxgh9KwKQ/runs/0/artifacts/public/logs/live_backing.log

---

[task 2023-11-13T15:01:03.535Z] 15:01:03     INFO - TEST-PASS | /webmessaging/broadcastchannel/blobs.html | Blobs work on BroadcastChannel 
[task 2023-11-13T15:01:03.535Z] 15:01:03     INFO - TEST-UNEXPECTED-TIMEOUT | /webmessaging/broadcastchannel/blobs.html | Blobs work with workers on BroadcastChannel - Test timed out
[task 2023-11-13T15:01:03.537Z] 15:01:03     INFO - TEST-UNEXPECTED-TIMEOUT | /webmessaging/broadcastchannel/blobs.html | expected OK
[task 2023-11-13T15:01:03.537Z] 15:01:03     INFO - TEST-INFO took 10243ms
[task 2023-11-13T15:01:03.540Z] 15:01:03     INFO - PID 14751 | 1699887663536	Marionette	INFO	Stopped listening on port 45599
[task 2023-11-13T15:01:04.007Z] 15:01:04     INFO - PID 14751 | console.error: ({})
[task 2023-11-13T15:01:04.170Z] 15:01:04     INFO - Browser exited with return code 0
[task 2023-11-13T15:01:04.172Z] 15:01:04     INFO - Closing logging queue
[task 2023-11-13T15:01:04.174Z] 15:01:04     INFO - queue closed
[task 2023-11-13T15:01:04.187Z] 15:01:04     INFO - Application command: /builds/worker/workspace/build/application/firefox/firefox --marionette about:blank -profile /tmp/tmpdk212col
[task 2023-11-13T15:01:04.220Z] 15:01:04     INFO - Starting runner
[task 2023-11-13T15:01:04.898Z] 15:01:04     INFO - PID 15595 | ATTENTION: default value of option mesa_glthread overridden by environment.
[task 2023-11-13T15:01:04.930Z] 15:01:04     INFO - PID 15595 | 1699887664929	Marionette	INFO	Marionette enabled
[task 2023-11-13T15:01:04.998Z] 15:01:04     INFO - PID 15595 | ATTENTION: default value of option mesa_glthread overridden by environment.
[task 2023-11-13T15:01:05.022Z] 15:01:05     INFO - PID 15595 | 1699887665021	Marionette	INFO	Listening on port 39133
[task 2023-11-13T15:01:05.537Z] 15:01:05     INFO - PID 15411 | console.error: ({})
[task 2023-11-13T15:01:07.078Z] 15:01:07     INFO - TEST-START | /wasm/jsapi/memory/buffer.any.worker.html
[task 2023-11-13T15:01:07.331Z] 15:01:07     INFO - ....
[task 2023-11-13T15:01:07.331Z] 15:01:07     INFO - TEST-OK | /wasm/jsapi/memory/buffer.any.worker.html | took 250ms

Comment 1

[Noemi Erli[:noemi_erli]]

R+B range.
This seems to be a regression from https://bugzilla.mozilla.org/show_bug.cgi?id=1836700
Eden, could you please take a look at this?

Comment 2

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

Set release status flags based on info from the regressing bug 1836700

Comment 3

[Intermittent Failures Robot]

17 failures in 670 pushes (0.025 failures/push) were associated with this bug yesterday.

Repository breakdown:

• autoland: 10
• mozilla-central: 4
• try: 3

Platform and build breakdown:

• linux1804-64-shippable-qr: 11
  • opt: 11
• windows11-32-2009-shippable-qr: 1
  • opt: 1
• windows11-64-2009-devedition-qr: 1
  • opt: 1
• linux1804-64-qr: 2
  • opt: 2
• windows11-64-2009-qr: 1
  • opt: 1
• linux1804-64-asan-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1864459&startday=2023-11-14&endday=2023-11-14&tree=all

Comment 4

[Eden Chuang[:edenchuang]]

Attachment: Bug 1864459 - WorkerPrivate::IsEligibleForCC should consider if there are any pending events. r=asuth

Comment 6

[Intermittent Failures Robot]

109 failures in 3495 pushes (0.031 failures/push) were associated with this bug in the last 7 days.

This is the #5 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:

• autoland: 69
• mozilla-central: 31
• try: 9

Platform and build breakdown:

• linux2204-64-wayland: 8
  • debug: 4
  • opt: 4
• linux1804-64-qr: 24
  • opt: 22
  • debug: 2
• linux1804-64-shippable-qr: 34
  • opt: 34
• linux1804-64-asan-qr: 8
  • opt: 8
• windows11-32-2009-shippable-qr: 6
  • opt: 6
• windows11-32-2009-qr: 4
  • opt: 4
• linux2204-64-wayland-shippable: 5
  • opt: 5
• windows10-64-2009-qr: 2
  • opt: 2
• windows11-64-2009-shippable-qr: 5
  • opt: 5
• macosx1015-64-qr: 1
  • opt: 1
• windows11-64-2009-devedition-qr: 1
  • opt: 1
• windows11-64-2009-qr: 5
  • opt: 5
• linux1804-32-shippable-qr: 3
  • opt: 3
• android-em-7-0-x86_64-shippable-lite-qr: 1
  • opt: 1
• windows11-64-2009-ccov-qr: 1
  • opt: 1
• android-em-7-0-x86_64-shippable-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1864459&startday=2023-11-13&endday=2023-11-19&tree=all

Comment 7

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/6f07953990c0
WorkerPrivate::IsEligibleForCC should consider if there are any pending events. r=asuth

Comment 8

[Serban Stanca [:SerbanS]]

https://hg.mozilla.org/mozilla-central/rev/6f07953990c0

Comment 9

[Intermittent Failures Robot]

22 failures in 816 pushes (0.027 failures/push) were associated with this bug yesterday.

Repository breakdown:

• autoland: 14
• try: 1
• mozilla-central: 7

Platform and build breakdown:

• linux2204-64-wayland: 3
  • opt: 3
• linux1804-64-shippable-qr: 8
  • opt: 8
• windows11-64-2009-qr: 2
  • opt: 2
• linux1804-64-qr: 6
  • opt: 6
• android-em-7-0-x86_64-qr: 1
  • debug: 1
• windows11-32-2009-shippable-qr: 1
  • opt: 1
• windows11-32-2009-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1864459&startday=2023-11-20&endday=2023-11-20&tree=all

Comment 10

[Eden Chuang[:edenchuang]]

Comment on attachment 9364299 [details]
Bug 1864459 - WorkerPrivate::IsEligibleForCC should consider if there are any pending events. r=asuth

Beta/Release Uplift Approval Request

• User impact if declined: Workers could be GCed unexpectedly and functionality provided by Workers will be broken.
• Is this code covered by automated tests?: Unknown
• Has the fix been verified in Nightly?: No
• Needs manual test from QE?: No
• If yes, steps to reproduce:
• List of other uplifts needed: None
• Risk to taking this patch: Low
• Why is the change risky/not risky? (and alternatives if risky): The patch is not risky since it adds an extra check of whether pending events are on the worker thread.
• String changes made/needed: No
• Is Android affected?: Yes

Comment 11

[Cosmin Sabou [:CosminS]]

I'd like to underline that failures are still present after latest patch, filed Bug 1865774 for tracking them.

Comment 12

[Eden Chuang[:edenchuang]]

The patch reduces the intermittent significantly, but there is still a chance that the Worker is GCed immediately.
Had already found the root cause and commented on the Bug 1865774. Will fix the edge case on the bug.

Comment 13

[Ryan VanderMeulen [:RyanVM]]

Comment on attachment 9364299 [details]
Bug 1864459 - WorkerPrivate::IsEligibleForCC should consider if there are any pending events. r=asuth

Approved for 121.0b2.

Comment 14

[Pulsebot]

https://hg.mozilla.org/releases/mozilla-beta/rev/ae7ec6bbf12f

Comment 15

[Cristian Tuns]

HI, we might still have the issue here: https://treeherder.mozilla.org/logviewer?job_id=437119979&repo=mozilla-central

Comment 16

[Intermittent Failures Robot]

16 failures in 799 pushes (0.02 failures/push) were associated with this bug yesterday.

Repository breakdown:

• autoland: 10
• mozilla-beta: 3
• try: 1
• mozilla-central: 2

Platform and build breakdown:

• linux1804-64-qr: 2
  • opt: 2
• linux2204-64-wayland: 1
  • opt: 1
• linux1804-64-devedition-qr: 1
  • opt: 1
• linux2204-64-wayland-shippable: 2
  • opt: 2
• android-em-7-0-x86_64-qr: 1
  • debug: 1
• windows11-32-2009-qr: 2
  • opt: 2
• windows10-64-2009-qr: 2
  • opt: 2
• linux1804-64-shippable-qr: 3
  • opt: 3
• windows11-64-2009-devedition-qr: 1
  • opt: 1
• windows11-64-2009-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1864459&startday=2023-11-21&endday=2023-11-21&tree=all

Comment 17

[Intermittent Failures Robot]

44 failures in 3623 pushes (0.012 failures/push) were associated with this bug in the last 7 days.

This is the #39 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:

• autoland: 27
• try: 2
• mozilla-central: 11
• mozilla-beta: 4

Platform and build breakdown:

• linux2204-64-wayland: 5
  • opt: 5
• linux1804-64-shippable-qr: 12
  • opt: 12
• windows11-64-2009-qr: 3
  • opt: 3
• linux1804-64-qr: 8
  • opt: 8
• android-em-7-0-x86_64-qr: 2
  • debug: 2
• windows11-32-2009-shippable-qr: 2
  • opt: 2
• windows11-32-2009-qr: 3
  • opt: 3
• linux1804-64-devedition-qr: 1
  • opt: 1
• windows10-64-2009-qr: 4
  • opt: 4
• linux2204-64-wayland-shippable: 2
  • opt: 2
• windows11-64-2009-devedition-qr: 1
  • opt: 1
• windows11-64-2009-shippable-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1864459&startday=2023-11-20&endday=2023-11-26&tree=all

Comment 18

[Intermittent Failures Robot]

4 failures in 3671 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• try: 4

Platform and build breakdown:

• windows11-64-2009-qr: 1
  • opt: 1
• linux1804-64-qr: 3
  • opt: 3

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1864459&startday=2023-12-04&endday=2023-12-10&tree=all