973523 - [10.6] Firefox not usable with OMTC enabled (browser.tabs.remote=true) - causes a plain white window

Status: RESOLVED DUPLICATE of bug 974007

(Core :: Graphics: Layers, defect)

Description

[Henrik Skupin [:whimboo][⌚️UTC+1]]

Since a couple of days we are experiencing a major outage of Firefox which gets rendered as a completely white window on OS X 10.6. 

So over on bug 972891 which is about a crash for the recently backed-out MOZCRASH line, Bill asked me for details as what can be seen on OS X 10.6. So I checked with a debug build of his inbound push:

[58727] WARNING: Couldn't init gGlobalContext.: file /builds/slave/m-in-osx64-d-00000000000000000/build/gfx/gl/GLContextProviderCGL.mm, line 284
2014-02-17 01:51:26.707 firefox[58727:8313] invalid pixel format
2014-02-17 01:51:26.707 firefox[58727:8313] invalid context
[58727] WARNING: Failed to create CompositorOGL context: file /builds/slave/m-in-osx64-d-00000000000000000/build/gfx/layers/opengl/CompositorOGL.cpp, line 174
ERROR: Changing compositor from 2 to 1.

As of now this blocks all of our testing for Firefox 30.0 on OS X 10.6.

Comment 1

[Henrik Skupin [:whimboo][⌚️UTC+1]]

Here the details of our OS X 10.6 machines:

    Model Name:     Mac mini
      Model Identifier:     Macmini4,1
      Processor Name:       Intel Core 2 Duo
      Processor Speed:      2.4 GHz
      Number Of Processors: 1
      Total Number Of Cores:        2
      L2 Cache:     3 MB
      Memory:       8 GB
     
      Chipset Model:        NVIDIA GeForce 320M
      Type: GPU
      Bus:  PCI
      VRAM (Total): 256 MB
      Vendor:       NVIDIA (0x10de)
      Device ID:    0x08a4
      Revision ID:  0x00a2
      ROM Revision: 3546
      Displays:
    Display Connector:
    Display Connector:

Comment 2

[Henrik Skupin [:whimboo][⌚️UTC+1]]

This is a regression from bug 960783 since when the browser.tabs.remote preference is set to true. Starting Firefox with the pref set to false all looks fine.

Comment 3

[Tom S [:evilpie]]

What happens when you set layers.offmainthreadcomposition.force-basic to false?

Comment 4

[Tom S [:evilpie]]

True, of course! Do you have anything not as the default under layers.* ?

Comment 5

[Henrik Skupin [:whimboo][⌚️UTC+1]]

The above is tested with a fresh profile, so you can assume no user_prefs are set regarding to e10s and layers.

Comment 6

[Matt Woodrow (:mattwoodrow)]

See bug 974007 for an explanation of we're broken for non-e10s windows with browser.tabs.remote=true (the default now).

I assume it's also broken in e10s windows, which needs to be fixed too.

Comment 7

[Benjamin Kerensa [:bkerensa]]

Matt, do you think this needs tracking at this point if so could you provide some more details on impact to users.

Comment 8

[Bill McCloskey [inactive unless it's an emergency] (:billm)]

This should be fixed now.

Comment 9

[u279076]

Andreea, given that Henrik is on PTO can you please confirm this is resolved?

Comment 10

[Andreea Matei [:AndreeaMatei]]

Took latest Nightly on a 10.6 OS X machine and it works fine, browser.tabs.remote preference being set to true and browser.tabs.remote.autostart to false, by default.