1111134 - [EME] Can race on startup of multiple GMP instances

Status: RESOLVED INVALID

(Core :: Audio/Video, defect)

Description

[Chris Pearce [:cpearce (Not reading bugmail)]]

We seem to be able to race on startup of multiple same-origin GMP instances.

STR:
1. Open multiple tabs with the same page using EME. For example open http://people.mozilla.org/~cpearce/mse-clearkey/ in 5 tabs.
2. Close Firefox.
3. Re-open Firefox with the same profile, restore the session, the 5 tabs will reload.

Expected Result:
* A single plugin-container instance will open up to service all tabs with a single instance of the plugin (since they're same-origin).

Observed result:
* Multiple plugin-container processes startup, and none of them seem to connect to the parent process correctly. The tabs don't load. The processes also fail to shutdown on exit of Firefox; we're left with several zombie plugin-container processes hanging around after firefox.exe has shutdown.

If we don't manage to fix this in time to ship EME, we can just disable sharing processes between same-origin tabs.

Comment 1

[Chris Pearce [:cpearce (Not reading bugmail)]]

I think I was seeing the issue that I pointed out in my patch in bug 1109457, rather than a genuine problem.

Comment 2

[Chris Pearce [:cpearce (Not reading bugmail)]]

Mass update firefox-status to track EME uplift.