The problem only happens with high framerate software clients (flicker and fingerpaint). Given bug 1406725, it appears that Mir might be producing frames (and sync_fence fds) much faster than the display can consume them. So the backlog grows without bounds, until such time as the client slows down or is stopped.
The problem only happens with high framerate software clients (flicker and fingerpaint). Given bug 1406725, it appears that Mir might be producing frames (and sync_fence fds) much faster than the display can consume them. So the backlog grows without bounds, until such time as the client slows down or is stopped.