diff --git a/platform/los_printf.c b/platform/los_printf.c
index d71c3954..928b371b 100644
--- a/platform/los_printf.c
+++ b/platform/los_printf.c
@@ -46,7 +46,7 @@
 #include "los_excinfo_pri.h"
 #endif
 #include "los_exc_pri.h"
-
+#include "los_sched_pri.h"
 
 #define SIZEBUF  256
 
@@ -94,7 +94,7 @@ STATIC VOID ConsoleOutput(const CHAR *str, UINT32 len)
 
     for (;;) {
         cnt = write(STDOUT_FILENO, str + writen, (size_t)toWrite);
-        if ((cnt < 0) || (toWrite == cnt)) {
+        if ((cnt < 0) || ((cnt == 0) && ((!OsPreemptable()) || (OS_INT_ACTIVE))) || (toWrite == cnt)) {
             break;
         }
         writen += cnt;