diff --git a/src/main.cpp b/src/main.cpp

index 0883424..16b1613 100644

--- a/src/main.cpp

+++ b/src/main.cpp

@@ -28,6 +28,7 @@

  *	Arjan van de Ven <arjan@linux.intel.com>

  */

 #include <iostream>

+#include <fstream>

 #include <stdlib.h>

 #include <stdio.h>

 #include <time.h>

@@ -36,6 +37,7 @@

 #include <getopt.h>

 #include <unistd.h>

 #include <locale.h>

+#include <sys/resource.h>

 #include "cpu/cpu.h"

 #include "process/process.h"

@@ -60,6 +62,8 @@

 #define DEBUGFS_MAGIC          0x64626720

+#define NR_OPEN_DEF 1024 * 1024

+

 int debug_learning = 0;

 unsigned time_out = 20;

 int leave_powertop = 0;

@@ -278,16 +282,35 @@ static void checkroot() {

 }

+static int get_nr_open(void) {

+	int nr_open = NR_OPEN_DEF;

+	ifstream file;

+

+	file.open("/proc/sys/fs/nr_open", ios::in);

+	if (file) {

+		file >> nr_open;

+		if (!file)

+			nr_open = NR_OPEN_DEF;

+		file.close();

+	}

+	return nr_open;

+}

+

 static void powertop_init(void)

 {

 	static char initialized = 0;

 	int ret;

 	struct statfs st_fs;

+	struct rlimit rlmt;

 	if (initialized)

 		return;

 	checkroot();

+

+	rlmt.rlim_cur = rlmt.rlim_max = get_nr_open();

+	setrlimit (RLIMIT_NOFILE, &rlmt;;

+

 	ret = system("/sbin/modprobe cpufreq_stats > /dev/null 2>&1");

 	ret = system("/sbin/modprobe msr > /dev/null 2>&1");

 	statfs("/sys/kernel/debug", &st_fs);