(This manifests itself as a crash under this stack, due to backend creation timing out since the GPU process is unresponsive) Thread 0 name: Dispatch queue: com.apple.main-thread Thread 0 Crashed: 0 WebKit 0x000000010352857c WebKit::ImageBufferShareableIOSurfaceBackend::createImageBufferBackendHandle() const + 24 1 WebKit 0x0000000103206474 WebKit::RemoteLayerBackingStore::encode(IPC::Encoder&) const + 316 2 WebKit 0x0000000103206474 WebKit::RemoteLayerBackingStore::encode(IPC::Encoder&) const + 316 3 WebKit 0x000000010320a050 WebKit::RemoteLayerTreeTransaction::LayerProperties::encode(IPC::Encoder&) const + 1184
Created attachment 416126 [details] WIP
Created attachment 416165 [details] Patch
<rdar://problem/71562635>
Created attachment 416174 [details] Add Radar URL to ChangeLog
Committed r270796: <https://trac.webkit.org/changeset/270796> All reviewed patches have been landed. Closing bug and clearing flags on attachment 416174 [details].