diff --git a/components/bt/bluedroid/btc/core/btc_task.c b/components/bt/bluedroid/btc/core/btc_task.c
index c4c5bd2554..d81c2fac44 100644
--- a/components/bt/bluedroid/btc/core/btc_task.c
+++ b/components/bt/bluedroid/btc/core/btc_task.c
@@ -60,6 +60,8 @@
 static xTaskHandle  xBtcTaskHandle = NULL;
 static xQueueHandle xBtcQueue = 0;
 
+void bt_abort_with_coredump_log(void);
+
 static btc_func_t profile_tab[BTC_PID_NUM] = {
     [BTC_PID_MAIN_INIT]   = {btc_main_call_handler,       NULL                    },
     [BTC_PID_DEV]         = {btc_dev_call_handler,        NULL                    },
@@ -154,7 +156,7 @@ static bt_status_t btc_task_post(btc_msg_t *msg, task_post_t timeout)
         BTC_TRACE_ERROR("Btc Post failed\n");
     #ifdef TASK_MONITOR_MODE
         ets_printf("!! Btc Post failed.Timeout Abort !!");
-        abort();
+        bt_abort_with_coredump_log();
     #endif
         return BT_STATUS_BUSY;
     }
diff --git a/components/bt/bluedroid/hci/hci_layer.c b/components/bt/bluedroid/hci/hci_layer.c
index c0c10f28d2..ff78c60e49 100644
--- a/components/bt/bluedroid/hci/hci_layer.c
+++ b/components/bt/bluedroid/hci/hci_layer.c
@@ -33,6 +33,8 @@
 #include "osi/mutex.h"
 #include "osi/fixed_queue.h"
 
+void bt_abort_with_coredump_log(void);
+
 typedef struct {
     uint16_t opcode;
     future_t *complete_future;
@@ -143,7 +145,7 @@ task_post_status_t hci_host_task_post(task_post_t timeout)
     if (xQueueSend(xHciHostQueue, &evt, timeout) != pdTRUE) {
     #ifdef TASK_MONITOR_MODE
         ets_printf("!! HCI send fail.Timeout Abort !!");
-        abort();
+        bt_abort_with_coredump_log();
     #endif
         HCI_TRACE_ERROR("xHciHostQueue failed\n");
         return TASK_POST_FAIL;
diff --git a/components/bt/bluedroid/osi/include/osi/thread.h b/components/bt/bluedroid/osi/include/osi/thread.h
index 6ec9409475..275f85e79d 100644
--- a/components/bt/bluedroid/osi/include/osi/thread.h
+++ b/components/bt/bluedroid/osi/include/osi/thread.h
@@ -81,7 +81,7 @@ typedef enum {
 #define BTC_TASK_STACK_SIZE             (CONFIG_BTC_TASK_STACK_SIZE + BT_TASK_EXTRA_STACK_SIZE)	//by menuconfig
 #define BTC_TASK_NAME                   "btcT"
 #define BTC_TASK_PRIO                   (configMAX_PRIORITIES - 6)
-#define BTC_TASK_QUEUE_LEN              300//60
+#define BTC_TASK_QUEUE_LEN              500//60
 
 #define BTC_A2DP_SINK_TASK_PINNED_TO_CORE     (TASK_PINNED_TO_CORE)
 #define BTC_A2DP_SINK_TASK_STACK_SIZE         (CONFIG_A2DP_SINK_TASK_STACK_SIZE + BT_TASK_EXTRA_STACK_SIZE) // by menuconfig
diff --git a/components/bt/bluedroid/stack/btu/btu_task.c b/components/bt/bluedroid/stack/btu/btu_task.c
index 4368ef760f..c0b7700f31 100644
--- a/components/bt/bluedroid/stack/btu/btu_task.c
+++ b/components/bt/bluedroid/stack/btu/btu_task.c
@@ -81,6 +81,8 @@ extern void avdt_rcv_sync_info (BT_HDR *p_buf);
 #include "btm_ble_int.h"
 #endif
 
+void bt_abort_with_coredump_log(void);
+
 //#if (defined(BT_APP_DEMO) && BT_APP_DEMO == TRUE)
 //#include "bt_app_common.h"
 //#endif
@@ -267,7 +269,7 @@ task_post_status_t btu_task_post(uint32_t sig, void *param, task_post_t timeout)
 
     #ifdef TASK_MONITOR_MODE
         ets_printf("!! Btu Post failed.Timeout Abort !!");
-        abort();
+        bt_abort_with_coredump_log();
     #endif
         return TASK_POST_FAIL;
     }
diff --git a/components/bt/bt.c b/components/bt/bt.c
index 3236a2a21d..aeeee54848 100644
--- a/components/bt/bt.c
+++ b/components/bt/bt.c
@@ -1438,4 +1438,9 @@ void esp_bt_check_need_restart()
     }
 }
 
+void bt_abort_with_coredump_log(void)
+{
+    __asm__ __volatile__("ill\n");
+}
+
 #endif /*  CONFIG_BT_ENABLED */