This bug was filed from the Socorro interface and is report bp-0e5a75ef-7a0f-4758-a9c4-a84080171202. ============================================================= Seen while looking at nightly Android crash stats: http://bit.ly/2klX84n. Relatively small volume on Nightly, but affects a few popular devices and they are all unique users. Crashes started using 20171129111022. Possible regression range based on Build ID: https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=5b33b070378ae0806bed0b5e5e34de429a29e7db&tochange=3f6b9aaed8cd57954e0c960cde06d25228196456 Top 10 frames of crashing thread: 0 libxul.so nsTArray_Impl<RefPtr<mozilla::Runnable>, nsTArrayInfallibleAllocator>::~nsTArray_Impl xpcom/ds/nsTArray.h:400 1 libxul.so mozilla::layers::AsyncPanZoomAnimation::~AsyncPanZoomAnimation gfx/layers/apz/src/AsyncPanZoomAnimation.h:74 2 libxul.so mozilla::gl::GLContext::MakeCurrent gfx/gl/GLContext.cpp:3047 3 libxul.so mozilla::gl::TexturePoolOGL::Fill gfx/layers/opengl/TexturePoolOGL.cpp:104 4 libxul.so mozilla::layers::CompositorOGL::BeginFrame gfx/layers/opengl/CompositorOGL.cpp:677 5 libxul.so mozilla::layers::LayerManagerComposite::Render gfx/layers/composite/LayerManagerComposite.cpp:917 6 libxul.so mozilla::layers::LayerManagerComposite::UpdateAndRender gfx/layers/composite/LayerManagerComposite.cpp:533 7 libxul.so mozilla::layers::LayerManagerComposite::EndTransaction gfx/layers/composite/LayerManagerComposite.cpp:463 8 libxul.so mozilla::layers::CompositorBridgeParent::CompositeToTarget gfx/layers/ipc/CompositorBridgeParent.cpp:1043 9 libxul.so mozilla::layers::CompositorVsyncScheduler::Composite gfx/layers/ipc/CompositorVsyncScheduler.cpp:388 =============================================================

This crash stack doesn't make much sense. Frames 2-9 seem fine, but I don't see how MakeCurrent would call into ~AsyncPanZoomAnimation or nsTArray. I suspect those frames are bogus or got mis-symbolicated or something. From the regression range bug 1390386 looks like the most likely culprit - jgilbert, could you take a look?