diff --git a/arch/arm/mach-msm/include/mach/msm_rtb.h b/arch/arm/mach-msm/include/mach/msm_rtb.h
index a24e8925942..ac45cbd7e07 100644
--- a/arch/arm/mach-msm/include/mach/msm_rtb.h
+++ b/arch/arm/mach-msm/include/mach/msm_rtb.h
@@ -17,6 +17,7 @@ enum logk_event_type {
 	LOGK_NONE = 0,
 	LOGK_READL,
 	LOGK_WRITEL,
+	LOGK_LOGBUF,
 	LOGK_OTHER,
 };
 
diff --git a/arch/arm/mach-msm/msm_rtb.c b/arch/arm/mach-msm/msm_rtb.c
index d765f6a6282..f93a79b6246 100644
--- a/arch/arm/mach-msm/msm_rtb.c
+++ b/arch/arm/mach-msm/msm_rtb.c
@@ -65,6 +65,7 @@ static atomic_t msm_rtb_idx;
 
 struct msm_rtb_state msm_rtb = {
 	.size = SZ_1M,
+	.filter = 1 << LOGK_LOGBUF,
 };
 
 module_param_named(filter, msm_rtb.filter, uint, 0644);
diff --git a/kernel/printk.c b/kernel/printk.c
index dbaa948f530..3c313957799 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -41,7 +41,7 @@
 #include <linux/cpu.h>
 #include <linux/notifier.h>
 #include <linux/rculist.h>
-
+#include <mach/msm_rtb.h>
 #include <asm/uaccess.h>
 
 /*
@@ -784,6 +784,11 @@ asmlinkage int printk(const char *fmt, ...)
 {
 	va_list args;
 	int r;
+#ifdef CONFIG_MSM_RTB
+	void *caller = __builtin_return_address(0);
+
+	uncached_logk_pc(LOGK_LOGBUF, caller, (void *)log_end);
+#endif
 
 #ifdef CONFIG_KGDB_KDB
 	if (unlikely(kdb_trap_printk)) {