Threads created using k_thread_create in the driver cannot enter the entry function

[foxriver1025]

I create a thread like this：

static struct k_thread thread;
static k_tid_t tid;
static K_THREAD_STACK_DEFINE(stack, 1024);
tid = k_thread_create(&thread, stack, K_KERNEL_STACK_SIZEOF(stack),
        (k_thread_entry_t)mt_scc_thread_entry, data, NULL, NULL, 0, 0, K_NO_WAIT);
char thread_name[16] = {0};
sprintf(thread_name, "mt_cy%u_scc%u", data->config.cy_id, data->config.id);
k_thread_name_set(tid, thread_name);

But it did not enter my entry function mt_scc_thread_entry.
The state of the thread is queued，like this:

0x7c046810 mt_cy0_scc0
	options: 0x0, priority: 0 timeout: 0
	state: queued, entry: 0x7c01db0a
	stack size 1024, unused 972, usage 52 / 1024 (5 %)

When I fill in delay as K_USEC(1), the thread state first starts with prestart, and then it takes a long time to enter the entry function. Why is this?

 0x7c046810 mt_cy0_scc0
        options: 0x0, priority: 0 timeout: 157079
        state: prestart, entry: 0x7c01db0a
        stack size 1024, unused 972, usage 52 / 1024 (5 %)

 0x7c046810 mt_cy0_scc0
        options: 0x0, priority: 0 timeout: 7076
        state: suspended, entry: 0x7c01db0a
        stack size 1024, unused 748, usage 276 / 1024 (26 %)