948555 - Assertion failure: compositor (Passed invalid backend hint), at ../../../../mozilla/gfx/layers/ipc/CompositorParent.cpp:731

Status: RESOLVED FIXED

(Core :: Graphics: Layers, defect)

Description

[Joshua Cranmer [:jcranmer]]

[Keyword intermittent-failure added so it shows up on TBPL]

Bug 865033 broke mozmill OS X tests on Thunderbird (https://tbpl.mozilla.org/php/getParsedLog.php?id=31749252&tree=Thunderbird-Trunk):
Assertion failure: compositor (Passed invalid backend hint), at ../../../../mozilla/gfx/layers/ipc/CompositorParent.cpp:731

Comment 1

[Nick Cameron [:nrc]]

Attachment: restore the continue and remove the assert

Turns out we pass LAYERS_NONE when we don't have a basic compositor, so we need to handle that case here.

Comment 2

[Nick Cameron [:nrc]]

https://hg.mozilla.org/integration/mozilla-inbound/rev/d14c74014d95

Comment 3

[Jesse Ruderman]

I hit this assertion in Firefox too, if I set:
  user_pref("layers.acceleration.disabled", true);

Comment 4

[Carsten Book [:Tomcat]]

https://hg.mozilla.org/mozilla-central/rev/d14c74014d95