!49 【轻量级 PR】：No idle PCB debug

Merge pull request !49 from zhangfanfan2/N/A

kernel/base/core/los_process.c

@@ -610,7 +610,7 @@ STATIC LosProcessCB *OsGetFreePCB(VOID)
     if (LOS_ListEmpty(&g_freeProcess)) {
         SCHEDULER_UNLOCK(intSave);
         PRINT_ERR("No idle PCB in the system!\n");
-        LOS_Panic("**************error***************\n");
+        __asm__ __volatile__("swi 0");
         return NULL;
     }