A pointer manager is described. The pointer manager includes write circuitry to enter, into a queue that is implemented with a first memory, a pointer value that a read hub has exhausted the use of. The pointer manager also includes read circuitry to remove, from said queue, a pointer value that is to be sent to a write hub. The pointer manager also includes write circuitry to add, to a link list that is maintained with a second memory, a pointer value that is to be sent to the write hub. The pointer manager also includes read circuitry to obtain, from said link list, a pointer value that is to be sent to a read hub.