1252233 - [e10s] shutdownhang after playing video with Windows Media Player Firefox Plugin since Bug 669200

Status: RESOLVED INVALID

(Core :: General, defect, P5)

Description

[Alice0775 White]

Attachment: sample wmv file (The video content is not related to this bug)

Build Identifier:
https://hg.mozilla.org/mozilla-central/rev/9da51cb4974e03cdd8fa45a34086fe1033abfeaf
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0 ID:20160229030448

The problem does not happen when e10s is disabled.

Reproducible : always with e10s.

Steps To Reproduce:
1. Install "Windows Media Player Firefox Plugin" from [1]
   [1] http://www.interoperabilitybridges.com/windows-media-player-firefox-plugin-download
2. Open attached video file and play 
3. Close Browser

Actual Results:
firefox.exe and plugin-container.exe process remains forever.
No crash reports.

Expected Results:
These process should disappear immediately

Comment 1

[Jim Mathies [:jimm]]

I'm not able to reproduce. both content and plugin plugin-containers shut down for me.

This plugin is obsolete as well. The installer places the files in the application directory which we don't support by default. ('plugins.load_appdir_plugins' needs to be set.)

Comment 2

[Alice0775 White]

Stack(using crashfirefox.exe)
bp-adb7f7cd-6e60-47f6-9f1e-17df92160302

Comment 3

[Jim Mathies [:jimm]]

(In reply to Alice0775 White from comment #2)
> Stack(using crashfirefox.exe)
> bp-adb7f7cd-6e60-47f6-9f1e-17df92160302

The main browser is hung waiting on a window to get destroyed. Usually this means Windows is waiting on something to happen in the plugin process associated with the child window. Could be caused by a shutdown hang in the media player, or maybe there's a deadlock in out content process + plugin ipc taking place.

Comment 4

[Mats Palmgren (inactive)]

We're in the process of removing support for plugins (bug 1677160), so I think this bug is irrelevant now.