Add to ORKGRecently, the flexible spin-lock model (FSLM) has\u3cbr/\u3ebeen introduced, unifying spin-based and suspension-based resource\u3cbr/\u3esharing protocols for real-time multi-core platforms.\u3cbr/\u3eUnlike the multiprocessor stack resource policy (MSRP), FSLM\u3cbr/\u3edoesn’t allow tasks on a core to share a single stack, however.\u3cbr/\u3eIn this paper, we present a hypothesis claiming that for a\u3cbr/\u3erestricted range of spin-lock priorities, FSLM requires only two\u3cbr/\u3estacks. We briefly describe our implementation of a dual stack\u3cbr/\u3efor FSLM in the Erika Enterprise RTOS as instantiated on an\u3cbr/\u3eAltera Nios II platform using 4 soft-core processors