I can reproduce the crasher too with GV under Mutter + Unity.
I can't reproduce the same crasher when running Mutter in a desktop session.
So there is something specific to Unity.
Looking at the backtrace, it sounds like an Xerror that is not properly trapped by Mutter, in the particular circumstances where the Unity plugin is loaded.
I can reproduce the crasher too with GV under Mutter + Unity.
I can't reproduce the same crasher when running Mutter in a desktop session.
So there is something specific to Unity.
Looking at the backtrace, it sounds like an Xerror that is not properly trapped by Mutter, in the particular circumstances where the Unity plugin is loaded.