diff --git a/drivers/net/mmnif.c b/drivers/net/mmnif.c
index ed702f3f..616652cc 100644
--- a/drivers/net/mmnif.c
+++ b/drivers/net/mmnif.c
@@ -85,7 +85,7 @@ static int active = 0;
 
 /* decide wheter it's uses locking or not
  */
-static int disable_locking = 1;
+static int disable_locking = 0;
 
 /* decide whether deliver work to a worker thread or instantly process all packets
  */
diff --git a/include/metalsvm/config.h b/include/metalsvm/config.h
index f70fdd4c..15a222af 100644
--- a/include/metalsvm/config.h
+++ b/include/metalsvm/config.h
@@ -35,7 +35,7 @@ extern "C" {
 #define PAGE_SHIFT		12
 #define CACHE_LINE		64
 #define MAILBOX_SIZE		8
-#define TIMER_FREQ		100	/* in HZ */
+#define TIMER_FREQ		1000	/* in HZ */
 #define CLOCK_TICK_RATE		1193182	/* 8254 chip's internal oscillator frequency */
 #define INT_SYSCALL		0x80
 #define KERNEL_SPACE		(1*1024*1024*1024)