self.seconds = seconds
         self.errmsg = errmsg
     def __enter__(self):
-        if qemu_gdb:
+        if qemu_gdb or qemu_valgrind:
             return self
         signal.signal(signal.SIGALRM, self.timeout)
         signal.setitimer(signal.ITIMER_REAL, self.seconds)
         return self
     def __exit__(self, exc_type, value, traceback):
-        if qemu_gdb:
+        if qemu_gdb or qemu_valgrind:
             return False
         signal.setitimer(signal.ITIMER_REAL, 0)
         return False
 
     def __init__(self, path_suffix=''):
         name = "qemu%s-%d" % (path_suffix, os.getpid())
-        timer = 15.0 if not qemu_gdb else None
+        timer = 15.0 if not (qemu_gdb or qemu_valgrind) else None
         super().__init__(qemu_prog, qemu_opts, wrapper=qemu_gdb,
                          name=name,
                          base_temp_dir=test_dir,