diff --git a/openair2/ENB_APP/CONTROL_MODULES/MAC/flexran_agent_mac.c b/openair2/ENB_APP/CONTROL_MODULES/MAC/flexran_agent_mac.c index 7a61bad6d399832280171eb88307ce136f4b53f5..5ad7a6d4968d33b609cce09969498d6617e2c9cc 100644 --- a/openair2/ENB_APP/CONTROL_MODULES/MAC/flexran_agent_mac.c +++ b/openair2/ENB_APP/CONTROL_MODULES/MAC/flexran_agent_mac.c @@ -1272,8 +1272,17 @@ void flexran_agent_init_mac_agent(mid_t mod_id) { lfds700_misc_prng_init(&ps[mod_id]); int num_elements = RINGBUFFER_SIZE + 1; //Allow RINGBUFFER_SIZE messages to be stored in the ringbuffer at any time - dl_mac_config_array[mod_id] = malloc( sizeof(struct lfds700_ringbuffer_element) * num_elements); - lfds700_ringbuffer_init_valid_on_current_logical_core( &ringbuffer_state[mod_id], dl_mac_config_array[mod_id], num_elements, &ps[mod_id], NULL ); + /* lfds700_ringbuffer_init_valid_on_current_logical_core()'s second argument + * must be aligned to LFDS700_PAL_ATOMIC_ISOLATION_IN_BYTES. From the + * documentation: "Heap allocated variables however will by no means be + * correctly aligned and an aligned malloc must be used." Therefore, we use + * posix_memalign */ + i = posix_memalign((void **)&dl_mac_config_array[mod_id], + LFDS700_PAL_ATOMIC_ISOLATION_IN_BYTES, + sizeof(struct lfds700_ringbuffer_element) * num_elements); + AssertFatal(i == 0, "posix_memalign(): could not allocate aligned memory for lfds library\n"); + lfds700_ringbuffer_init_valid_on_current_logical_core(&ringbuffer_state[mod_id], + dl_mac_config_array[mod_id], num_elements, &ps[mod_id], NULL); for (i = 0; i < MAX_MOBILES_PER_ENB; i++) { for (j = 0; j < 8; j++) { if (RC.mac && RC.mac[mod_id])