Hi Jorge- Disclaimer: I know only enough about Python to be rather dangerous. Recently I noticed that nfstest_lock has started failing. FAIL: Traceback (most recent call last): File "/data/nfstest/test/./nfstest_lock", line 1344, in <module> x.lock_setup(nfiles=1) ~~~~~~~~~~~~^^^^^^^^^^ File "/data/nfstest/test/./nfstest_lock", line 397, in lock_setup self.create_proc_info(nfsopt_item) ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^ File "/data/nfstest/test/./nfstest_lock", line 445, in create_proc_info pinfo = self.start_rexec(clientobj) File "/data/nfstest/test/./nfstest_lock", line 424, in start_rexec execobj.rimport("fcntl", ["fcntl", "F_SETLK"]) ~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/data/nfstest/nfstest/rexec.py", line 449, in rimport self.rexec("globals()['%s']=locals()['%s']" % (item, item)) ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/data/nfstest/nfstest/rexec.py", line 413, in rexec return self._send_cmd("exec", expr) ~~~~~~~~~~~~~~^^^^^^^^^^^^^^ File "/data/nfstest/nfstest/rexec.py", line 350, in _send_cmd return self.results() ~~~~~~~~~~~~^^ File "/data/nfstest/nfstest/rexec.py", line 401, in results raise out KeyError: 'fcntl' The code in question is: def start_rexec(self, clientobj): """Start remote procedure server locally or on the host given by the client object. Set up the remote server with helper functions to lock and unlock a file. clientobj: Client object where the remote procedure server will be started """ # Start remote procedure server on given client execobj = self.create_rexec(clientobj.host) # Setup function to lock and unlock a file execobj.rimport("fcntl", ["fcntl", "F_SETLK"]) execobj.rimport("struct") execobj.rimport("signal") execobj.rcode(getlock) # Set SIGALRM handler to do nothing but not ignoring the signal # just to interrupt a blocked lock execobj.reval("signal.signal(signal.SIGALRM, lambda signum,frame:None)") return ProcInfo(clientobj, execobj) Some brief web searching suggests that create_rexec might come from the deprecated Python 2 module "rexec". This failure was observed on a Fedora 41 system, it has no Python 2 installed. Have we hit the end of life for the rexec module? -- Chuck Lever