# Buggy code
def call_highstate(
    self, exclude=None, cache=None, cache_name="highstate", force=False, whitelist=None
):
    """
    Run the sequence to execute the salt highstate for this minion
    """
    # Check that top file exists
    tag_name = "no_|-states_|-states_|-None"
    ret = {
        tag_name: {
            "result": False,
            "comment": "No states found for this minion",
            "name": "No States",
            "changes": {},
            "__run_num__": 0,
        }
    }
    cfn = os.path.join(self.opts["cachedir"], "{0}.cache.p".format(cache_name))

    if cache:
        if os.path.isfile(cfn):
            with salt.utils.fopen(cfn, "rb") as fp_:
                high = self.serial.load(fp_)
                return self.state.call_high(high)
    # File exists so continue
    err = []
    try:
        top = self.get_top()
    except SaltRenderError as err:
        ret[tag_name]["comment"] = "Unable to render top file: "
        ret[tag_name]["comment"] += err.error
        return ret
    except Exception:
        trb = traceback.format_exc()
        err.append(trb)
        return err
    err += self.verify_tops(top)
    matches = self.top_matches(top)
    if not matches:
        msg = "No Top file or external nodes data matches found"
        ret[tag_name]["comment"] = msg
        return ret
    matches = self.matches_whitelist(matches, whitelist)
    self.load_dynamic(matches)
    if not self._check_pillar(force):
        err += ["Pillar failed to render with the following messages:"]
        err += self.state.opts["pillar"]["_errors"]
    else:
        high, errors = self.render_highstate(matches)
        if exclude:
            if isinstance(exclude, str):
                exclude = exclude.split(",")
            if "__exclude__" in high:
                high["__exclude__"].extend(exclude)
            else:
                high["__exclude__"] = exclude
        err += errors
    if err:
        return err
    if not high:
        return ret
    cumask = os.umask(0o77)
    try:
        if salt.utils.is_windows():
            # Make sure cache file isn't read-only
            self.state.functions["cmd.run"](
                'attrib -R "{0}"'.format(cfn), output_loglevel="quiet"
            )
        with salt.utils.fopen(cfn, "w+b") as fp_:
            try:
                self.serial.dump(high, fp_)
            except TypeError:
                # Can't serialize pydsl
                pass
    except (IOError, OSError):
        msg = 'Unable to write to "state.highstate" cache file {0}'
        log.error(msg.format(cfn))

    os.umask(cumask)
    return self.state.call_high(high)


# Traceback (TypeError)
Passed invalid arguments: can't serialize ConstructorError()
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/salt/cli/caller.py", line 129, in call
ret['return'] = func(*args, **kwargs)
File "/usr/lib/python2.7/dist-packages/salt/modules/state.py", line 343, in highstate
serial.dump(ret, fp_)
File "/usr/lib/python2.7/dist-packages/salt/payload.py", line 149, in dump
fn_.write(self.dumps(msg))
File "/usr/lib/python2.7/dist-packages/salt/payload.py", line 115, in dumps
return msgpack.dumps(msg)
File "_packer.pyx", line 259, in msgpack._packer.packb (msgpack/_packer.cpp:259)
File "_packer.pyx", line 184, in msgpack._packer.Packer.pack (msgpack/_packer.cpp:184)
File "_packer.pyx", line 159, in msgpack._packer.Packer._pack (msgpack/_packer.cpp:159)
File "_packer.pyx", line 159, in msgpack._packer.Packer._pack (msgpack/_packer.cpp:159)
File "_packer.pyx", line 179, in msgpack._packer.Packer._pack (msgpack/_packer.cpp:179)
TypeError: can't serialize ConstructorError()

# Fixed code
def call_highstate(
    self, exclude=None, cache=None, cache_name="highstate", force=False, whitelist=None
):
    """
    Run the sequence to execute the salt highstate for this minion
    """
    # Check that top file exists
    tag_name = "no_|-states_|-states_|-None"
    ret = {
        tag_name: {
            "result": False,
            "comment": "No states found for this minion",
            "name": "No States",
            "changes": {},
            "__run_num__": 0,
        }
    }
    cfn = os.path.join(self.opts["cachedir"], "{0}.cache.p".format(cache_name))

    if cache:
        if os.path.isfile(cfn):
            with salt.utils.fopen(cfn, "rb") as fp_:
                high = self.serial.load(fp_)
                return self.state.call_high(high)
    # File exists so continue
    err = []
    try:
        top = self.get_top()
    except SaltRenderError as err:
        ret[tag_name]["comment"] = "Unable to render top file: "
        ret[tag_name]["comment"] += str(err.error)
        return ret
    except Exception:
        trb = traceback.format_exc()
        err.append(trb)
        return err
    err += self.verify_tops(top)
    matches = self.top_matches(top)
    if not matches:
        msg = "No Top file or external nodes data matches found."
        ret[tag_name]["comment"] = msg
        return ret
    matches = self.matches_whitelist(matches, whitelist)
    self.load_dynamic(matches)
    if not self._check_pillar(force):
        err += ["Pillar failed to render with the following messages:"]
        err += self.state.opts["pillar"]["_errors"]
    else:
        high, errors = self.render_highstate(matches)
        if exclude:
            if isinstance(exclude, str):
                exclude = exclude.split(",")
            if "__exclude__" in high:
                high["__exclude__"].extend(exclude)
            else:
                high["__exclude__"] = exclude
        err += errors
    if err:
        return err
    if not high:
        return ret
    cumask = os.umask(0o77)
    try:
        if salt.utils.is_windows():
            # Make sure cache file isn't read-only
            self.state.functions["cmd.run"](
                'attrib -R "{0}"'.format(cfn), output_loglevel="quiet"
            )
        with salt.utils.fopen(cfn, "w+b") as fp_:
            try:
                self.serial.dump(high, fp_)
            except TypeError:
                # Can't serialize pydsl
                pass
    except (IOError, OSError):
        msg = 'Unable to write to "state.highstate" cache file {0}'
        log.error(msg.format(cfn))

    os.umask(cumask)
    return self.state.call_high(high)