Sun Nov 18 09:10:34.674 [initandlisten] db version v2.3.1-pre-, pdfile version 4.5
Sun Nov 18 09:10:34.674 [initandlisten] git version: 88055d1a66ba7daefe681900a79cd9c01896304f

>>> c = pymongo.Connection(port=20000)
>>> db = c.foo
>>> db.system_js.foo = "baz"

>>> db.system_js.foo()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "pymongo/database.py", line 848, in <lambda>
    scope={'name': name}), *args)
  File "pymongo/database.py", line 788, in eval
    result = self.command("$eval", code, args=args)
  File "pymongo/database.py", line 392, in command
    msg, allowable_errors)
  File "pymongo/helpers.py", line 144, in _check_command_response
    raise OperationFailure(msg % details["errmsg"])
pymongo.errors.OperationFailure: command SON([('$eval', Code('function() { return this[name].apply(this, arguments); }', {'name': 'foo'})), ('args', ())]) failed: invoke failed: JS Error: ReferenceError: baz is not defined nofile_a:0

>>> import pymongo
>>> c = pymongo.Connection()
>>> db = c.foo
>>> db.system_js.foo()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "pymongo/database.py", line 848, in <lambda>
    scope={'name': name}), *args)
  File "pymongo/database.py", line 788, in eval
    result = self.command("$eval", code, args=args)
  File "pymongo/database.py", line 392, in command
    msg, allowable_errors)
  File "pymongo/helpers.py", line 144, in _check_command_response
    raise OperationFailure(msg % details["errmsg"])
pymongo.errors.OperationFailure: command SON([('$eval', Code('function() { return this[name].apply(this, arguments); }', {'name': 'foo'})), ('args', ())]) failed: invoke failed: error in invoke: _funcs1:1 TypeError: Cannot call method 'apply' of undefined
_funcs1 = function() { return this[name].apply(this, arguments); }
                                         ^

>>> db.system_js.foo = "baz"
>>> db.system_js.foo()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "pymongo/database.py", line 848, in <lambda>
    scope={'name': name}), *args)
  File "pymongo/database.py", line 788, in eval
    result = self.command("$eval", code, args=args)
  File "pymongo/database.py", line 387, in command
    result = self["$cmd"].find_one(command, **extra_opts)
  File "pymongo/collection.py", line 582, in find_one
    for result in self.find(spec_or_id, *args, **kwargs).limit(-1):
  File "pymongo/cursor.py", line 799, in next
    if len(self.__data) or self._refresh():
  File "pymongo/cursor.py", line 748, in _refresh
    self.__uuid_subtype))
  File "pymongo/cursor.py", line 685, in __send_message
    **kwargs)
  File "pymongo/mongo_client.py", line 917, in _send_message_with_response
    raise AutoReconnect(str(e))
pymongo.errors.AutoReconnect: connection closed

<unknown>:33: Uncaught ReferenceError: baz is not defined
Sun Nov 18 09:45:31.929 Invalid access at address: 0 from thread: conn1

Sun Nov 18 09:45:31.929 Got signal: 11 (Segmentation fault).

Sun Nov 18 09:45:31.938 Backtrace:
0xcd1d31 0x6cdae9 0x6ce072 0x7f403e388b80 0xf81587 0xfe0592 0xe7461d 0xdd3002 0xc7a9fa 0xc64a1e 0xc65bea 0x8aa8f9 0x8ab791 0x882286 0x883593 0x884651 0x9e1ca8 0x9e51e0 0x9567dc 0x959043 
 ./mongod(_ZN5mongo15printStackTraceERSo+0x21) [0xcd1d31]
 ./mongod(_ZN5mongo10abruptQuitEi+0x399) [0x6cdae9]
 ./mongod(_ZN5mongo24abruptQuitWithAddrSignalEiP7siginfoPv+0x262) [0x6ce072]
 /lib64/libpthread.so.0(+0x10b80) [0x7f403e388b80]
 ./mongod(_ZN2v88internal10JSReceiver11SetPropertyENS0_6HandleIS1_EENS2_INS0_6StringEEENS2_INS0_6ObjectEEE18PropertyAttributesNS0_14StrictModeFlagE+0x37) [0xf81587]
 ./mongod(_ZN2v88internal7Runtime17SetObjectPropertyEPNS0_7IsolateENS0_6HandleINS0_6ObjectEEES6_S6_18PropertyAttributesNS0_14StrictModeFlagE+0x492) [0xfe0592]
 ./mongod(_ZN2v88internal11SetPropertyENS0_6HandleINS0_6ObjectEEES3_S3_18PropertyAttributesNS0_14StrictModeFlagE+0x5d) [0xe7461d]
 ./mongod(_ZN2v86Object3SetENS_6HandleINS_5ValueEEES3_NS_17PropertyAttributeE+0xf2) [0xdd3002]
 ./mongod(_ZN5mongo7V8Scope10setElementEPKcRKNS_11BSONElementE+0xba) [0xc7a9fa]
 ./mongod(_ZN5mongo5Scope10loadStoredEb+0x40e) [0xc64a1e]
 ./mongod(_ZN5mongo12ScriptEngine14getPooledScopeERKSs+0xea) [0xc65bea]
 ./mongod(_ZN5mongo6dbEvalERKSsRNS_7BSONObjERNS_14BSONObjBuilderERSs+0xa9) [0x8aa8f9]
 ./mongod(_ZN5mongo7CmdEval3runERKSsRNS_7BSONObjEiRSsRNS_14BSONObjBuilderEb+0x231) [0x8ab791]
 ./mongod(_ZN5mongo12_execCommandEPNS_7CommandERKSsRNS_7BSONObjEiRNS_14BSONObjBuilderEb+0x56) [0x882286]
 ./mongod(_ZN5mongo11execCommandEPNS_7CommandERNS_6ClientEiPKcRNS_7BSONObjERNS_14BSONObjBuilderEb+0xde3) [0x883593]
 ./mongod(_ZN5mongo12_runCommandsEPKcRNS_7BSONObjERNS_11_BufBuilderINS_16TrivialAllocatorEEERNS_14BSONObjBuilderEbi+0x2b1) [0x884651]
 ./mongod(_ZN5mongo11runCommandsEPKcRNS_7BSONObjERNS_5CurOpERNS_11_BufBuilderINS_16TrivialAllocatorEEERNS_14BSONObjBuilderEbi+0x38) [0x9e1ca8]
 ./mongod(_ZN5mongo8runQueryERNS_7MessageERNS_12QueryMessageERNS_5CurOpES1_+0xc70) [0x9e51e0]
 ./mongod() [0x9567dc]
 ./mongod(_ZN5mongo16assembleResponseERNS_7MessageERNS_10DbResponseERKNS_11HostAndPortE+0x3a3) [0x959043]