[dts] [PATCH V2] disable ASLR for multi process test

[xu,huilong]

Signed-off-by: xu,huilong <huilongx.xu at intel.com>
---
 tests/TestSuite_multiprocess.py   | 8 +++++++-
 tests/TestSuite_unit_tests_eal.py | 7 +++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/tests/TestSuite_multiprocess.py b/tests/TestSuite_multiprocess.py
index b305437..00e8e27 100644
--- a/tests/TestSuite_multiprocess.py
+++ b/tests/TestSuite_multiprocess.py
@@ -57,7 +57,12 @@ class TestMultiprocess(TestCase, IxiaPacketGenerator):
 
         self.verify(len(self.dut.get_all_cores()) >= 4, "Not enough Cores")
         self.tester.extend_external_packet_generator(TestMultiprocess, self)
-
+        try:
+            self.aslr_flag = int(self.dut.send_expect("cat /proc/sys/kernel/randomize_va_space", "# "))
+            if self.aslr_flag:
+                self.dut.send_expect("echo 0 > /proc/sys/kernel/randomize_va_space", "# ")
+        except:
+            print "This machine not support disable ASLR, maybe multi process will failed" 
         out = self.dut.build_dpdk_apps("./examples/multi_process/")
         self.verify('Error' not in out, "Compilation failed")
 
@@ -274,6 +279,7 @@ class TestMultiprocess(TestCase, IxiaPacketGenerator):
         Run after each test suite.
         """
         self.dut.kill_all()
+        self.dut.send_expect("echo %d > /proc/sys/kernel/randomize_va_space" % self.aslr_flag, "# ")
         self.dut.close_session(self.session_secondary)
 
         pass
diff --git a/tests/TestSuite_unit_tests_eal.py b/tests/TestSuite_unit_tests_eal.py
index d27ba39..e5c0384 100644
--- a/tests/TestSuite_unit_tests_eal.py
+++ b/tests/TestSuite_unit_tests_eal.py
@@ -332,11 +332,18 @@ class TestUnitTestsEal(TestCase):
         """
         Run multiprocess autotest.
         """
+        try:
+            aslr_flag = int(self.dut.send_expect("cat /proc/sys/kernel/randomize_va_space", "# "))
+            if aslr_flag:
+                self.dut.send_expect("echo 0 > /proc/sys/kernel/randomize_va_space", "# ")
+        except:
+            print "This machine not support disable ASLR, maybe multi process will failed"
 
         self.dut.send_expect(self.test_app_cmdline + ' -m 64', "R.*T.*E.*>.*>", self.start_test_time)
         out = self.dut.send_expect("multiprocess_autotest", "RTE>>", self.run_cmd_time)
         self.dut.send_expect("quit", "# ")
         self.verify("Test OK" in out, "Test failed")
+        self.dut.send_expect("echo %d > /proc/sys/kernel/randomize_va_space" % aslr_flag, "# ")
 
     def test_string(self):
         """
-- 
1.9.3