--- a/testing/mozbase/mozrunner/mozrunner/devices/android_device.py
+++ b/testing/mozbase/mozrunner/mozrunner/devices/android_device.py
@@ -85,27 +85,27 @@ AVD_DICT = {
                    ['-skip-adb-auth', '-verbose', '-show-kernel',
                     '-qemu', '-m', '1024', '-enable-kvm'],
                    True),
     'x86-6.0': AvdInfo('Android 6.0 x86',
                        'mozemulator-x86-6.0',
                        'testing/config/tooltool-manifests/androidx86_6_0/mach-emulator.manifest',
                        ['-skip-adb-auth', '-verbose', '-show-kernel',
                         '-ranchu',
-                        # does not boot if '-engine', 'qemu2',
+                        '-engine', 'qemu2',
                         '-memory', '3072', '-cores', '4',
                         '-qemu', '-enable-kvm'],
                        True),
     'x86-7.0': AvdInfo('Android 7.0 x86',
                        'mozemulator-x86-7.0',
                        'testing/config/tooltool-manifests/androidx86_7_0/mach-emulator.manifest',
                        ['-skip-adb-auth', '-verbose', '-show-kernel',
                         '-ranchu',
+                        '-engine', 'qemu2',
                         '-selinux', 'permissive',
-                        # does not boot if '-engine', 'qemu2',
                         '-memory', '3072', '-cores', '4',
                         '-qemu', '-enable-kvm'],
                        True)
 }
 
 
 def _get_device(substs, device_serial=None):
     global devices
@@ -525,17 +525,17 @@ class AndroidEmulator(object):
         log_path = os.path.join(EMULATOR_HOME_DIR, 'emulator.log')
         self.emulator_log = open(log_path, 'w')
         _log_debug("Starting the emulator with this command: %s" %
                    ' '.join(command))
         _log_debug("Emulator output will be written to '%s'" %
                    log_path)
         self.proc = ProcessHandler(
             command, storeOutput=False, processOutputLine=outputHandler,
-            env=env)
+            env=env, ignore_children=True)
         self.proc.run()
         _log_debug("Emulator started with pid %d" %
                    int(self.proc.proc.pid))
 
     def wait_for_start(self):
         """
            Verify that the emulator is running, the emulator device is visible
            to adb, and Android has booted.