Excellent talk by John Light: Embedded Programming for IoT. Light is involved in Iotivity development.
He talks a little bit about coroutines but the talk focuses mostly on memory management in very constrained environments. He has also written about this topic:
Heap Allocation on the Internet of Things
IoT Memory Management: A Case Study
On the Iotivity wiki:
Memory Management Design
Memory Management Design ii
Memory Management Design iii