1842706 - [wmfme] mfpmp process leaks after playing EME playback

Status: VERIFIED FIXED

(Core :: Audio/Video: Playback, defect, P2)

Description

[Alastor Wu [:alwu]]

STR.

1. Set the preferences media.eme.playready.enabled=true and media.wmf.media-engine.enabled=1
2. Open another new tab, navigating to the https://refapp.hbbtv.org/dash/test_dashjs_sl3000.html?video=sl2000b
3. Open Process Explorer to check whether mfpmp process is created
4. Close the tab containing the test page

Expect.
5. mfpmp process should disappear

Actual
5. mfpmp process still exists

Comment 1

[Alastor Wu [:alwu]]

I found that the leaking problem actually behaves differently on my Win10 and Win11. On my Win11, bug 1839493 did solve the leaking problem for this test page. But on Win10, the problem still exists...,

Comment 2

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

The severity field is not set for this bug.
:jimm, could you have a look please?

For more information, please visit BugBot documentation.

Comment 3

[Alastor Wu [:alwu]]

Attachment: Bug 1842706 - part1 : clean up CDM before shutting down the media engine.

Comment 4

[Alastor Wu [:alwu]]

Attachment: Bug 1842706 - part2 : close all sessions when shutting down CDM Parent.

Depends on D186481

Comment 5

[Alastor Wu [:alwu]]

Attachment: Bug 1842706 - part3 : print more debug logs.

Depends on D186482

Comment 6

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/1cc302d6f198
part1 : clean up CDM before shutting down the media engine. r=media-playback-reviewers,padenot
https://hg.mozilla.org/integration/autoland/rev/36467382da90
part2 : close all sessions when shutting down CDM Parent. r=media-playback-reviewers,padenot
https://hg.mozilla.org/integration/autoland/rev/90da8704edec
part3 : print more debug logs. r=media-playback-reviewers,padenot

Comment 7

[Iulian Moraru]

https://hg.mozilla.org/mozilla-central/rev/1cc302d6f198
https://hg.mozilla.org/mozilla-central/rev/36467382da90
https://hg.mozilla.org/mozilla-central/rev/90da8704edec

Comment 8

[Dana Lucaci, Desktop QA]

Attachment: image_2023_08_31T11_53_22_356Z.png

Reproduced the issue with Firefox 117.0a1 (2023-07-10) on Win 10.
The issue is still reproducible using the STR from the description with Firefox 119.0a1 (20230830212731) and Firefox 118.0b2 (20230829180158) on Win 10. The mfpmp process still exists after the tab displaying the test video is closed. Are there any additional steps or something that I'm missing?

Comment 9

[Alastor Wu [:alwu]]

Filed bug 1851070 to investigate the problem on Windows 10. But this bug fixes the problem for Windows 11.

Comment 10

[Ciprian Georgiu, Desktop QA]

(In reply to Alastor Wu [:alwu] from comment #9)

Filed bug 1851070 to investigate the problem on Windows 10. But this bug fixes the problem for Windows 11.

I can confirm this, the issue is not reproducible anymore on Win 11 x64 with latest Beta 118.0b3. Marking this verified as fixed, since we have Bug 1851070 to address the problem on Win 10.