[New-bugs-announce] [issue6937] multiprocessing lock on OS X Snow Leopard dumps core

aaditya sood report at bugs.python.org
Fri Sep 18 07:10:44 CEST 2009


New submission from aaditya sood <aaditya at sood.net.in>:

On a Snow Leopard system, doing this core dumps:

import multiprocessing
lck1=multiprocessing.Lock()

with lck1:
    print "foo"

The stack trace:

Process:         Python [23100]
Path:           
/System/Library/Frameworks/Python.framework/Versions/2.6/Resources/Python.app/Contents/MacOS/Python
Identifier:      Python
Version:         ??? (???)
Code Type:       X86-64 (Native)
Parent Process:  zsh [23055]

Date/Time:       2009-09-18 10:39:39.611 +0530
OS Version:      Mac OS X 10.6.1 (10B504)
Report Version:  6

Interval Since Last Report:          83665 sec
Crashes Since Last Report:           60
Per-App Crashes Since Last Report:   55
Anonymous UUID:                      38A426BB-52F7-4282-9FA8-A04AB8896489

Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x00000043000000ee
Crashed Thread:  0  Dispatch queue: com.apple.main-thread

Thread 0 Crashed:  Dispatch queue: com.apple.main-thread
0   org.python.python             	0x0000000100096763
_PyArg_ParseTupleAndKeywords_SizeT + 113
1   _multiprocessing.so           	0x00000001001fa8c8 sem_timedwait_save
+ 456
2   org.python.python             	0x00000001000891df PyEval_EvalFrameEx
+ 15001
3   org.python.python             	0x000000010008accf PyEval_EvalCodeEx
+ 1803
4   org.python.python             	0x000000010008ad62 PyEval_EvalCode + 54
5   org.python.python             	0x00000001000a265a Py_CompileString + 78
6   org.python.python             	0x00000001000a44dd
PyRun_InteractiveOneFlags + 503
7   org.python.python             	0x00000001000a4615
PyRun_InteractiveLoopFlags + 206
8   org.python.python             	0x00000001000a4685
PyRun_AnyFileExFlags + 76
9   org.python.python             	0x00000001000b0286 Py_Main + 2718
10  org.python.python.app         	0x0000000100000e6c start + 52

Thread 0 crashed with X86 Thread State (64-bit):
  rax: 0x0000004300000043  rbx: 0x0000000100200150  rcx:
0x00000001001fc7f0  rdx: 0x00000001001fb632
  rdi: 0x00000001001af050  rsi: 0x000000010003af24  rbp:
0x00007fff5fbfeff0  rsp: 0x00007fff5fbfef20
   r8: 0x0000000100096748   r9: 0x00007fff5fbff030  r10:
0x0000000000000000  r11: 0x00000001001fa86f
  r12: 0x00000000ffffffff  r13: 0x00000001004a4570  r14:
0x0000000100123100  r15: 0x00000001001af050
  rip: 0x0000000100096763  rfl: 0x0000000000010206  cr2: 0x00000043000000ee

Binary Images:
       0x100000000 -        0x100000ff7  org.python.python.app 2.6 (2.6)
<BDEA119D-4E2F-D97F-07BA-713A6E5A39B6>
/System/Library/Frameworks/Python.framework/Versions/2.6/Resources/Python.app/Contents/MacOS/Python
       0x100004000 -        0x100114ff7  org.python.python 2.6.1 (2.6.1)
<01EBD0D4-F181-045F-C7A8-B7B3C5D4204F>
/System/Library/Frameworks/Python.framework/Versions/2.6/Python
       0x1001f0000 -        0x1001f2ff7  readline.so ??? (???)
<A8236667-A9DD-30A5-6DE8-201C6EF317E6>
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-dynload/readline.so
       0x1001f8000 -        0x1001fbfff  _multiprocessing.so ??? (???)
<03672D74-6FAC-DE76-6DE6-604A8C0F2D50>
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-dynload/_multiprocessing.so
       0x1004b0000 -        0x1004ccff7  libedit.2.dylib ??? (???)
<F9D005F8-74B8-CC05-2697-24C49E0CC1EF> /usr/lib/libedit.2.dylib
       0x1004db000 -        0x1004e0fff  itertools.so ??? (???)
<06555874-952C-C770-64BF-6BC7A2455E10>
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-dynload/itertools.so
       0x1004e8000 -        0x1004f4fff  cPickle.so ??? (???)
<98485D07-D504-74EB-B3A1-4EBB2474BFE6>
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-dynload/cPickle.so
       0x1004fa000 -        0x1004fbfff  cStringIO.so ??? (???)
<7600C3A8-3C81-2A81-0853-B09107768C8C>
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-dynload/cStringIO.so
       0x100540000 -        0x100541ff7  _functools.so ??? (???)
<1CE29F88-7B8C-77CC-5E87-555BA210EA8F>
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-dynload/_functools.so
       0x100545000 -        0x100546ff7  time.so ??? (???)
<5F01F2A9-8557-5DF1-F006-44E02E0469CE>
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-dynload/time.so
       0x10054d000 -        0x100550fff  _collections.so ??? (???)
<1F62A5C3-6E6C-D0BC-7AA6-DA2820B5F157>
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-dynload/_collections.so
       0x100556000 -        0x100559fff  operator.so ??? (???)
<68C1CC88-5F73-E029-5C19-685BBADACFA6>
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-dynload/operator.so
       0x10055f000 -        0x10055ffff  _weakref.so ??? (???)
<89F1302D-1CFA-7B9B-4425-70DA55215DAE>
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-dynload/_weakref.so
       0x1005a3000 -        0x1005a7ff7  _struct.so ??? (???)
<33156F5C-52ED-7167-533F-15D6CF031150>
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-dynload/_struct.so
       0x1005ad000 -        0x1005affe7  binascii.so ??? (???)
<5CFE3DC5-850B-B79D-8310-0BA97540841A>
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-dynload/binascii.so
    0x7fff5fc00000 -     0x7fff5fc3bdef  dyld 132.1 (???)
<B633F790-4DDB-53CD-7ACF-2A3682BCEA9F> /usr/lib/dyld
    0x7fff80bc1000 -     0x7fff80bc5ff7  libmathCommon.A.dylib ??? (???)
<95718673-FEEE-B6ED-B127-BCDBDB60D4E5> /usr/lib/system/libmathCommon.A.dylib
    0x7fff829f4000 -     0x7fff82bb2ff7  libSystem.B.dylib ??? (???)
<66102D4E-6C8B-77D0-6766-2A1788B20C6F> /usr/lib/libSystem.B.dylib
    0x7fff85ebc000 -     0x7fff85efbfef  libncurses.5.4.dylib ??? (???)
<E0A07C12-D912-DF26-9E38-C50484D96EB0> /usr/lib/libncurses.5.4.dylib
    0x7fff85f81000 -     0x7fff85f92fef  libz.1.dylib ??? (???)
<3A7A4C48-A4C8-A78A-8B87-C0DDF6601AC8> /usr/lib/libz.1.dylib
    0x7fffffe00000 -     0x7fffffe01fff  libSystem.B.dylib ??? (???)
<66102D4E-6C8B-77D0-6766-2A1788B20C6F> /usr/lib/libSystem.B.dylib

Model: MacBookPro2,2, BootROM MBP22.00A5.B07, 2 processors, Intel Core 2
Duo, 2.16 GHz, 2 GB, SMC 1.12f5
Graphics: ATI Radeon X1600, ATY,RadeonX1600, PCIe, 128 MB
Memory Module: global_name
AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x87),
Atheros 5416: 2.0.19.4
Bluetooth: Version 2.2.1f7, 2 service, 1 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
Serial ATA Device: Hitachi HTS541612J9SA00, 111.79 GB
Parallel ATA Device: HL-DT-ST DVDRW GWA4080MA
USB Device: Built-in iSight, 0x05ac  (Apple Inc.), 0x8501, 0xfd400000
USB Device: IR Receiver, 0x05ac  (Apple Inc.), 0x8240, 0x5d200000
USB Device: Apple Internal Keyboard / Trackpad, 0x05ac  (Apple Inc.),
0x021a, 0x1d200000
USB Device: Bluetooth USB Host Controller, 0x05ac  (Apple Inc.), 0x8205,
0x7d100000

----------
components: Extension Modules
messages: 92801
nosy: aaditya
severity: normal
status: open
title: multiprocessing lock on OS X Snow Leopard dumps core
versions: Python 2.6

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue6937>
_______________________________________


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