diff --git a/arch/arm/mach-mt8127/include/mach/hotplug.h b/arch/arm/mach-mt8127/include/mach/hotplug.h
index fa139f2a..413b7dbc 100644
--- a/arch/arm/mach-mt8127/include/mach/hotplug.h
+++ b/arch/arm/mach-mt8127/include/mach/hotplug.h
@@ -11,7 +11,8 @@
 #define HOTPLUG_LOG_WITH_XLOG                           1
 #define HOTPLUG_LOG_WITH_PRINTK                         2
 
-#define HOTPLUG_LOG_PRINT                               HOTPLUG_LOG_WITH_PRINTK
+// #define HOTPLUG_LOG_PRINT                               HOTPLUG_LOG_WITH_PRINTK
+#define HOTPLUG_LOG_PRINT                               HOTPLUG_LOG_NONE
 
 #if (HOTPLUG_LOG_PRINT == HOTPLUG_LOG_NONE)
 #define HOTPLUG_INFO(fmt, args...)                    
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 5c5842d6..62de84f3 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -220,7 +220,7 @@ void __cpuinit __cpu_die(unsigned int cpu)
 		pr_err("CPU%u: cpu didn't die\n", cpu);
 		return;
 	}
-	printk(KERN_NOTICE "CPU%u: shutdown\n", cpu);
+//	printk(KERN_NOTICE "CPU%u: shutdown\n", cpu);
 
 	/*
 	 * platform_cpu_kill() is generally expected to do the powering off
@@ -356,7 +356,7 @@ asmlinkage void __cpuinit secondary_start_kernel(void)
 	cpu_init();
 	aee_rr_rec_hoplug(cpu, 5, 0);
 
-	printk("CPU%u: Booted secondary processor\n", cpu);
+//	printk("CPU%u: Booted secondary processor\n", cpu);
 
 	preempt_disable();
 	aee_rr_rec_hoplug(cpu, 6, 0);
diff --git a/arch/arm/mach-mt8127/ca7_timer.c b/arch/arm/mach-mt8127/ca7_timer.c
index c752bb1d..0ca334e4 100644
--- a/arch/arm/mach-mt8127/ca7_timer.c
+++ b/arch/arm/mach-mt8127/ca7_timer.c
@@ -289,7 +289,7 @@ static int __cpuinit generic_timer_setup(struct clock_event_device *clk)
 {
     struct clock_event_device **this_cpu_clk;
 
-    pr_info("[ca7_timer]%s entry\n", __func__);
+//    pr_info("[ca7_timer]%s entry\n", __func__);
     generic_timer_calibrate_rate();
 
     write_cntp_ctl(0x0);
diff --git a/arch/arm/mach-mt8127/mt-smp.c b/arch/arm/mach-mt8127/mt-smp.c
index 4df773d2..1fbd14c9 100644
--- a/arch/arm/mach-mt8127/mt-smp.c
+++ b/arch/arm/mach-mt8127/mt-smp.c
@@ -127,7 +127,7 @@ void __cpuinit mt_platform_secondary_init(unsigned int cpu)
 {
     struct wd_api *wd_api = NULL;
 
-    printk(KERN_INFO "Slave cpu init\n");
+//    printk(KERN_INFO "Slave cpu init\n");
     HOTPLUG_INFO("platform_secondary_init, cpu: %d\n", cpu);
 
     mt_gic_secondary_init();
@@ -170,7 +170,7 @@ static void __cpuinit mt_wakeup_cpu(int cpu)
     }
     else
     {
-    	printk("mt_wakeup_cpu: not first boot!(%d)\n", cpu);
+//    	printk("mt_wakeup_cpu: not first boot!(%d)\n", cpu);
         mt65xx_reg_sync_writel(virt_to_phys(mt_secondary_startup), BOOT_ADDR);        
 
 #if defined(CONFIG_TRUSTONIC_TEE_SUPPORT) || defined(CONFIG_MTK_IN_HOUSE_TEE_SUPPORT)
@@ -189,7 +189,7 @@ int __cpuinit mt_boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
     unsigned long timeout;
 
-    printk(KERN_CRIT "Boot slave CPU\n");
+//    printk(KERN_INFO "Boot slave CPU\n");
 
     atomic_inc(&hotplug_cpu_count);
 
@@ -224,7 +224,7 @@ int __cpuinit mt_boot_secondary(unsigned int cpu, struct task_struct *idle)
 #if !defined (CONFIG_TRUSTONIC_TEE_SUPPORT)
             mt_wakeup_cpu(cpu);
 #else //#if !defined (CONFIG_TRUSTONIC_TEE_SUPPORT)
-            printk("mt_wakeup_cpu: not first boot!(%d)\n", cpu);
+//            printk("mt_wakeup_cpu: not first boot!(%d)\n", cpu);
 			//mt65xx_reg_sync_writel(virt_to_phys(mt_secondary_startup), BOOT_ADDR);
 			// fixme, to replace SMC with parameter of ns_slave_boot_addr
             mt_secure_call(MC_FC_SET_RESET_VECTOR, virt_to_phys(mt_secondary_startup), cpu, 0);
diff --git a/arch/arm/mach-mt8127/mt_dbg.c b/arch/arm/mach-mt8127/mt_dbg.c
index 3391891a..14ad42e1 100644
--- a/arch/arm/mach-mt8127/mt_dbg.c
+++ b/arch/arm/mach-mt8127/mt_dbg.c
@@ -71,7 +71,7 @@ regs_hotplug_callback(struct notifier_block *nfb, unsigned long action, void *hc
 //        printk(KERN_ALERT "In hotplug callback\n");
 	int i;
         unsigned int cpu = (unsigned int) hcpu;
-        printk("regs_hotplug_callback cpu = %d\n", cpu);
+//        printk("regs_hotplug_callback cpu = %d\n", cpu);
         switch (action) {
         case CPU_ONLINE:
 	case CPU_ONLINE_FROZEN:
diff --git a/drivers/misc/mediatek/wdk/wd_api.c b/drivers/misc/mediatek/wdk/wd_api.c
index c382f7a7..b94fcf7a 100644
--- a/drivers/misc/mediatek/wdk/wd_api.c
+++ b/drivers/misc/mediatek/wdk/wd_api.c
@@ -88,7 +88,7 @@ static int wd_cpu_hot_plug_on_notify(int cpu)
 	int res = 0;
 	wk_cpu_update_bit_flag(cpu, 1);
 	mtk_wdt_restart(WD_TYPE_NOLOCK);	/* for KICK external wdt */
-	printk("WD wd_cpu_hot_plug_on_notify kick ext wd\n");
+//	printk("WD wd_cpu_hot_plug_on_notify kick ext wd\n");
 
 	return res;
 }
diff --git a/drivers/misc/mediatek/wdk/wd_common_drv.c b/drivers/misc/mediatek/wdk/wd_common_drv.c
index aecc3081..36ba4773 100644
--- a/drivers/misc/mediatek/wdk/wd_common_drv.c
+++ b/drivers/misc/mediatek/wdk/wd_common_drv.c
@@ -230,7 +230,7 @@ void kicker_cpu_bind(int cpu)
 		//kthread_bind(wk_tsk[cpu], cpu);
 		WARN_ON_ONCE(set_cpus_allowed_ptr(wk_tsk[cpu], cpumask_of(cpu)) < 0);
 		
-		printk("[wdk]bind kicker thread[%d] to cpu[%d]\n",wk_tsk[cpu]->pid,cpu);
+//		printk("[wdk]bind kicker thread[%d] to cpu[%d]\n",wk_tsk[cpu]->pid,cpu);
 		wake_up_process(wk_tsk[cpu]);
 	}
 }
@@ -570,7 +570,7 @@ static int __cpuinit wk_cpu_callback(struct notifier_block *nfb, unsigned long a
 		mpcore_wdt_restart(WD_TYPE_NORMAL);
 #endif
 
-		printk("[WDK]cpu %d plug on kick wdt\n", hotcpu);
+//		printk("[WDK]cpu %d plug on kick wdt\n", hotcpu);
 		break;
 #ifdef CONFIG_HOTPLUG_CPU
 #ifdef CONFIG_LOCAL_WDT
@@ -584,14 +584,14 @@ static int __cpuinit wk_cpu_callback(struct notifier_block *nfb, unsigned long a
 
 		mtk_wdt_restart(WD_TYPE_NORMAL);	/* for KICK external wdt */
 #ifdef CONFIG_LOCAL_WDT
-		printk("[WDK]cpu %d plug off kick local wdt\n", hotcpu);
+//		printk("[WDK]cpu %d plug off kick local wdt\n", hotcpu);
 		/* kick local wdt */
 		/* mpcore_wdt_restart(WD_TYPE_NORMAL); */
 		/* disable local watchdog */
 		mpcore_wk_wdt_stop();
 #endif
 		wk_cpu_update_bit_flag(hotcpu, 0);
-		printk("[WDK]cpu %d plug off, kick wdt\n", hotcpu);
+//		printk("[WDK]cpu %d plug off, kick wdt\n", hotcpu);
 		break;
 #endif				/* CONFIG_HOTPLUG_CPU */
 	}
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index fb958294..43e3e69d 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -4197,12 +4197,12 @@ recheck:
 			return -EINVAL;
 	}
 
-	if(rt_policy(policy)){                                                                                
-		if (!check_mt_allow_rt((struct sched_param *)param)){
-			printk("[RT_MONITOR]WARNNING [%d:%s] SET NOT ALLOW RT Prio [%d] for proc [%d:%s]\n", current->pid, current->comm, param->sched_priority, p->pid, p->comm);
-			//dump_stack();
-		}
-	}
+//	if(rt_policy(policy)){                                                                                
+//		if (!check_mt_allow_rt((struct sched_param *)param)){
+//			printk("[RT_MONITOR]WARNNING [%d:%s] SET NOT ALLOW RT Prio [%d] for proc [%d:%s]\n", current->pid, current->comm, param->sched_priority, p->pid, p->comm);
+//			//dump_stack();
+//		}
+//	}
 
 	/*
 	 * Valid priorities for SCHED_FIFO and SCHED_RR are