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Crash when calling reset_traits on specific properties. #67

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cfarrow opened this issue Jul 5, 2013 · 5 comments
Closed

Crash when calling reset_traits on specific properties. #67

cfarrow opened this issue Jul 5, 2013 · 5 comments
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type: bug

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@cfarrow
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cfarrow commented Jul 5, 2013

Here's an example script that crashes an interpreter. I have not dug in to determine the nature of the crash.

from traits.api import HasTraits, Int, Property


class CrashMe(HasTraits):
    """ Crashes when reset_traits(['a']) is called.

    This works with Float, Int, Str.
    Not with Any.

    """
    a = Property(Int)

    def crash(self):
        self.reset_traits(['a'])


CrashMe().crash()
print "Hey, I didn't crash!"
@cfarrow
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cfarrow commented Jul 5, 2013

This was on 32-bit windows XP.

@cfarrow
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cfarrow commented Jul 5, 2013

This is what I get from Python 2.7.3 |EPD 7.3-2 (32-bit).

Process:         Python [7504]
Path:            /Users/cfarrow/Library/EPD/7.3-i386/Resources/Python.app/Contents/MacOS/Python
Identifier:      Python
Version:         ??? (???)
Code Type:       X86 (Native)
Parent Process:  zsh [353]

Date/Time:       2013-07-05 09:59:41.331 -0500
OS Version:      Mac OS X 10.6.8 (10K549)
Report Version:  6

Interval Since Last Report:          21126021 sec
Crashes Since Last Report:           379
Per-App Crashes Since Last Report:   254
Anonymous UUID:                      818A55FB-66E4-406C-818D-023E46FA3885

Exception Type:  EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000000
Crashed Thread:  0  Dispatch queue: com.apple.main-thread

Thread 0 Crashed:  Dispatch queue: com.apple.main-thread
0   ctraits.so                      0x016e8d8e setattr_validate3 + 62 (ctraits.c:2919)
1   ctraits.so                      0x016e87ad setattr_validate_property + 45 (ctraits.c:2847)
2   ctraits.so                      0x016f14dc has_traits_setattro + 284 (ctraits.c:867)
3   org.python.python               0x0005f327 PyObject_SetAttr + 151
4   org.python.python               0x000c0d96 builtin_delattr + 102
5   org.python.python               0x000cb2d1 PyEval_EvalFrameEx + 21649
6   org.python.python               0x000cd02a PyEval_EvalCodeEx + 2042
7   org.python.python               0x000cb253 PyEval_EvalFrameEx + 21523
8   org.python.python               0x000cc053 PyEval_EvalFrameEx + 25107
9   org.python.python               0x000cd02a PyEval_EvalCodeEx + 2042
10  org.python.python               0x000cb9db PyEval_EvalFrameEx + 23451
11  org.python.python               0x000cd02a PyEval_EvalCodeEx + 2042
12  org.python.python               0x000cb253 PyEval_EvalFrameEx + 21523
13  org.python.python               0x000cd02a PyEval_EvalCodeEx + 2042
14  org.python.python               0x000cb253 PyEval_EvalFrameEx + 21523
15  org.python.python               0x000cd02a PyEval_EvalCodeEx + 2042
16  org.python.python               0x000cb253 PyEval_EvalFrameEx + 21523
17  org.python.python               0x000cc053 PyEval_EvalFrameEx + 25107
18  org.python.python               0x000cd02a PyEval_EvalCodeEx + 2042
19  org.python.python               0x000cb253 PyEval_EvalFrameEx + 21523
20  org.python.python               0x000cd02a PyEval_EvalCodeEx + 2042
21  org.python.python               0x000cb253 PyEval_EvalFrameEx + 21523
22  org.python.python               0x000cd02a PyEval_EvalCodeEx + 2042
23  org.python.python               0x000cb9db PyEval_EvalFrameEx + 23451
24  org.python.python               0x000cd02a PyEval_EvalCodeEx + 2042
25  org.python.python               0x000cb253 PyEval_EvalFrameEx + 21523
26  org.python.python               0x000cd02a PyEval_EvalCodeEx + 2042
27  org.python.python               0x000cb253 PyEval_EvalFrameEx + 21523
28  org.python.python               0x000cd02a PyEval_EvalCodeEx + 2042
29  org.python.python               0x000cb253 PyEval_EvalFrameEx + 21523
30  org.python.python               0x000cd02a PyEval_EvalCodeEx + 2042
31  org.python.python               0x000cb253 PyEval_EvalFrameEx + 21523
32  org.python.python               0x000cd02a PyEval_EvalCodeEx + 2042
33  org.python.python               0x000cb253 PyEval_EvalFrameEx + 21523
34  org.python.python               0x000cd02a PyEval_EvalCodeEx + 2042
35  org.python.python               0x000cb253 PyEval_EvalFrameEx + 21523
36  org.python.python               0x000cd02a PyEval_EvalCodeEx + 2042
37  org.python.python               0x000cb253 PyEval_EvalFrameEx + 21523
38  org.python.python               0x000cd02a PyEval_EvalCodeEx + 2042
39  org.python.python               0x000cd1b7 PyEval_EvalCode + 87
40  org.python.python               0x000f1898 PyRun_FileExFlags + 168
41  org.python.python               0x000f27c3 PyRun_SimpleFileExFlags + 867
42  org.python.python               0x0010ba58 Py_Main + 3560
43  org.python.python               0x00001fb6 0x1000 + 4022

Thread 1:
0   libSystem.B.dylib               0x953bdaa2 __semwait_signal + 10
1   libSystem.B.dylib               0x953bd75e _pthread_cond_wait + 1191
2   libSystem.B.dylib               0x953bf3f8 pthread_cond_wait$UNIX2003 + 73
3   org.python.python               0x0010882c PyThread_acquire_lock + 172
4   org.python.python               0x0010d7e3 lock_PyThread_acquire_lock + 83
5   org.python.python               0x000cb2d1 PyEval_EvalFrameEx + 21649
6   org.python.python               0x000cd02a PyEval_EvalCodeEx + 2042
7   org.python.python               0x000cb253 PyEval_EvalFrameEx + 21523
8   org.python.python               0x000cd02a PyEval_EvalCodeEx + 2042
9   org.python.python               0x000cb253 PyEval_EvalFrameEx + 21523
10  org.python.python               0x000cd02a PyEval_EvalCodeEx + 2042
11  org.python.python               0x00042282 function_call + 162
12  org.python.python               0x0000f635 PyObject_Call + 85
13  org.python.python               0x000c889b PyEval_EvalFrameEx + 10843
14  org.python.python               0x000cd02a PyEval_EvalCodeEx + 2042
15  org.python.python               0x000cb253 PyEval_EvalFrameEx + 21523
16  org.python.python               0x000cc053 PyEval_EvalFrameEx + 25107
17  org.python.python               0x000cc053 PyEval_EvalFrameEx + 25107
18  org.python.python               0x000cd02a PyEval_EvalCodeEx + 2042
19  org.python.python               0x00042282 function_call + 162
20  org.python.python               0x0000f635 PyObject_Call + 85
21  org.python.python               0x00021fe6 instancemethod_call + 422
22  org.python.python               0x0000f635 PyObject_Call + 85
23  org.python.python               0x000c4eae PyEval_CallObjectWithKeywords + 78
24  org.python.python               0x0010e18c t_bootstrap + 76
25  libSystem.B.dylib               0x953bd259 _pthread_start + 345
26  libSystem.B.dylib               0x953bd0de thread_start + 34

Thread 0 crashed with X86 Thread State (32-bit):
  eax: 0x00000000  ebx: 0x05faedc8  ecx: 0x0637482c  edx: 0x0016e200
  edi: 0x00220b00  esi: 0x0633ca50  ebp: 0xbfffbe18  esp: 0xbfffbde0
   ss: 0x00000023  efl: 0x00010202  eip: 0x016e8d8e   cs: 0x0000001b
   ds: 0x00000023   es: 0x00000023   fs: 0x00000000   gs: 0x0000000f
  cr2: 0x00000000

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0x96aea000 - 0x96b27ff7  com.apple.SystemConfiguration 1.10.9 (1.10.2) <5C0F72C2-177E-675A-8677-9BC4205B4A98> /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/SystemConfiguration
0x98ae7000 - 0x98b2dff7  libauto.dylib ??? (???) <7CB1AB76-50A2-8E56-66E4-CF51CA75B177> /usr/lib/libauto.dylib
0x99495000 - 0x994cdfe7  libncurses.5.4.dylib 5.4.0 (compatibility 5.4.0) <12EF33B7-083C-1E28-D846-69DC55287E0D> /usr/lib/libncurses.5.4.dylib
0x994ce000 - 0x99650fe7  libicucore.A.dylib 40.0.0 (compatibility 1.0.0) <60FF302E-5FAE-749B-BC70-0496DC2FBF2D> /usr/lib/libicucore.A.dylib
0x99ffd000 - 0x9a000fe7  libmathCommon.A.dylib 315.0.0 (compatibility 1.0.0) <1622A54F-1A98-2CBE-B6A4-2122981A500E> /usr/lib/system/libmathCommon.A.dylib
0xffff0000 - 0xffff1fff  libSystem.B.dylib ??? (???) <2DCD13E3-1BD1-6F25-119A-3863A3848B90> /usr/lib/libSystem.B.dylib

Model: MacBookPro8,2, BootROM MBP81.0047.B27, 4 processors, Intel Core i7, 2.3 GHz, 8 GB, SMC 1.69f4
Graphics: AMD Radeon HD 6750M, AMD Radeon HD 6750M, PCIe, 1024 MB
Graphics: Intel HD Graphics 3000, Intel HD Graphics 3000, Built-In, 512 MB
Memory Module: global_name
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD6), Broadcom BCM43xx 1.0 5.100.198.104.5)
Bluetooth: Version 2.4.5f3, 2 service, 19 devices, 1 incoming serial ports
Network Service: Ethernet, Ethernet, en0
Network Service: AirPort, AirPort, en1
Serial ATA Device: APPLE SSD TS256C, 233.76 GB
Serial ATA Device: MATSHITADVD-R   UJ-8A8
USB Device: FaceTime HD Camera (Built-in), 0x05ac  (Apple Inc.), 0x8509, 0xfa200000 / 3
USB Device: Hub, 0x0424  (SMSC), 0x2513, 0xfa100000 / 2
USB Device: DASAN, 0x074d  (Micronas GmbH), 0x3556, 0xfa130000 / 6
USB Device: Apple Internal Keyboard / Trackpad, 0x05ac  (Apple Inc.), 0x0245, 0xfa120000 / 5
USB Device: BRCM2070 Hub, 0x0a5c  (Broadcom Corp.), 0x4500, 0xfa110000 / 4
USB Device: Bluetooth USB Host Controller, 0x05ac  (Apple Inc.), 0x821a, 0xfa113000 / 8
USB Device: Hub, 0x0424  (SMSC), 0x2513, 0xfd100000 / 2
USB Device: Hub, 0x05ac  (Apple Inc.), 0x9126, 0xfd120000 / 4
USB Device: Keyboard Hub, 0x05ac  (Apple Inc.), 0x1006, 0xfd121000 / 8
USB Device: Apple Keyboard, 0x05ac  (Apple Inc.), 0x0220, 0xfd121200 / 9
USB Device: Apple LED Cinema Display, 0x05ac  (Apple Inc.), 0x9226, 0xfd126000 / 6
USB Device: Display Audio, 0x05ac  (Apple Inc.), 0x1105, 0xfd124000 / 7
USB Device: Display iSight, 0x05ac  (Apple Inc.), 0x8508, 0xfd125000 / 5
USB Device: IR Receiver, 0x05ac  (Apple Inc.), 0x8242, 0xfd110000 / 3
FireWire Device: GoFlex Mac, Seagate, Up to 800 Mb/sec

@pankajp
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pankajp commented Jul 5, 2013

A bit more informative trace on linux:

Program received signal SIGSEGV, Segmentation fault.
setattr_validate3 (trait=0x86a1b0, obj=0x7ffff7af9290, name='a', value=0x0)
at traits/ctraits.c:2919
2919        Py_INCREF( value );
(gdb) bt
#0  setattr_validate3 (trait=0x86a1b0, obj=0x7ffff7af9290, name='a',
value=0x0) at traits/ctraits.c:2919
#1  0x00007ffff12a22d8 in setattr_validate_property (traito=0x86a1b0,
traitd=0x86a1b0, obj=0x7ffff7af9290, name='a', value=<optimized out>) at
traits/ctraits.c:2847
#2  0x00007ffff7ccfb54 in PyObject_SetAttr (v=<CrashMe at remote
0x7ffff7af9290>, name='a', value=0x0) at Objects/object.c:1245
#3  0x00007ffff7d1e1c5 in builtin_delattr (self=<optimized out>,
args=<optimized out>) at Python/bltinmodule.c:1155
#4  0x00007ffff7d29d51 in call_function (oparg=<optimized out>,
pp_stack=<optimized out>) at Python/ceval.c:4013
#5  PyEval_EvalFrameEx (f=Frame 0x6e3050, for file
/home/pankaj/work/enthought/ETS/traits/traits/has_traits.py, line 1836, in
reset_traits (self=<CrashMe at remote 0x7ffff7af9290>, traits=['a'],
metadata={}, unresetable=[], name='a'),
    throwflag=<optimized out>) at Python/ceval.c:2666
#6  0x00007ffff7d2a722 in PyEval_EvalCodeEx (co=0x7ffff12827b0,
globals=<optimized out>, locals=<optimized out>, args=0x6e3010, argcount=2,
kws=0x6e3020, kwcount=0, defs=0x7fffeecca6e8, defcount=1, closure=0x0) at
Python/ceval.c:3253
#7  0x00007ffff7d286b6 in call_function (oparg=<optimized out>,
pp_stack=<optimized out>) at Python/ceval.c:4109
#8  PyEval_EvalFrameEx (f=Frame 0x6e2e90, for file trait_reset_crash.py,
line 15, in crash (self=<CrashMe at remote 0x7ffff7af9290>),
throwflag=<optimized out>) at Python/ceval.c:2666
#9  0x00007ffff7d29093 in call_function (oparg=<optimized out>,
pp_stack=<optimized out>) at Python/ceval.c:4099
#10 PyEval_EvalFrameEx (f=Frame 0x6ddce0, for file trait_reset_crash.py,
line 18, in <module> (), throwflag=<optimized out>) at Python/ceval.c:2666
#11 0x00007ffff7d2a722 in PyEval_EvalCodeEx (co=0x7ffff7b0b6b0,
globals=<optimized out>, locals=<optimized out>, args=0x0, argcount=0,
kws=0x0, kwcount=0, defs=0x0, defcount=0, closure=0x0) at
Python/ceval.c:3253
#12 0x00007ffff7d2a772 in PyEval_EvalCode (co=0x3, globals=(<CrashMe at
remote 0x7ffff7af9290>, 'a', 0x0), locals=0x0) at Python/ceval.c:667
#13 0x00007ffff7d44432 in run_mod (mod=<optimized out>, filename=<optimized
out>, globals=
    {'__builtins__': <module at remote 0x7ffff7bddad0>, '__file__':
'trait_reset_crash.py', '__package__': None, 'Int': <type at remote
0x7833e0>, 'HasTraits': <MetaHasTraits(_add_trait_category=<classmethod at
remote 0x7fffeeccb280>, _init_trait_property_listener=<function at remote
0x7fffeecd1e60>, class_trait_view=<classmethod at remote 0x7fffeeccb1a0>,
__prefix_traits__={'': <CTrait(type='python') at remote 0x7fffeeccd7e0>,
'*': ['_traits_cache_', ''], '_traits_cache_': <CTrait(transient=True,
type='trait', private=True) at remote 0x7fffeeccd520>},
reset_traits=<function at remote 0x7fffeecce578>, __getstate__=<function at
remote 0x7fffeecce2a8>, sync_trait=<function at remote 0x7fffeecd1050>,
_get_sync_trait_info=<function at remote 0x7fffeecd10c8>,
_list_items_changed_handler=<function at remote 0x7fffeecd1b90>,
trait_subclasses=<classmethod at remote 0x7fffeeccba98>,
trait_view_elements=<function at remote 0x7fffeeccec08>,
__weakref__=<getset_descriptor at remote 0x7fffeecd3170>,
_is_list_trait=<function a...(truncated), locals=
    {'__builtins__': <module at remote 0x7ffff7bddad0>, '__file__':
'trait_reset_crash.py', '__package__': None, 'Int': <type at remote
0x7833e0>, 'HasTraits': <MetaHasTraits(_add_trait_category=<classmethod at
remote 0x7fffeeccb280>, _init_trait_property_listener=<function at remote
0x7fffeecd1e60>, class_trait_view=<classmethod at remote 0x7fffeeccb1a0>,
__prefix_traits__={'': <CTrait(type='python') at remote 0x7fffeeccd7e0>,
'*': ['_traits_cache_', ''], '_traits_cache_': <CTrait(transient=True,
type='trait', private=True) at remote 0x7fffeeccd520>},
reset_traits=<function at remote 0x7fffeecce578>, __getstate__=<function at
remote 0x7fffeecce2a8>, sync_trait=<function at remote 0x7fffeecd1050>,
_get_sync_trait_info=<function at remote 0x7fffeecd10c8>,
_list_items_changed_handler=<function at remote 0x7fffeecd1b90>,
trait_subclasses=<classmethod at remote 0x7fffeeccba98>,
trait_view_elements=<function at remote 0x7fffeeccec08>,
__weakref__=<getset_descriptor at remote 0x7fffeecd3170>,
_is_list_trait=<function a...(truncated), flags=<optimized out>,
arena=<optimized out>) at Python/pythonrun.c:1346
#14 0x00007ffff7d44506 in PyRun_FileExFlags (fp=0x6cbb60,
filename=0x7fffffffe086 "trait_reset_crash.py", start=257, globals=
    {'__builtins__': <module at remote 0x7ffff7bddad0>, '__file__':
'trait_reset_crash.py', '__package__': None, 'Int': <type at remote
0x7833e0>, 'HasTraits': <MetaHasTraits(_add_trait_category=<classmethod at
remote 0x7fffeeccb280>, _init_trait_property_listener=<function at remote
0x7fffeecd1e60>, class_trait_view=<classmethod at remote 0x7fffeeccb1a0>,
__prefix_traits__={'': <CTrait(type='python') at remote 0x7fffeeccd7e0>,
'*': ['_traits_cache_', ''], '_traits_cache_': <CTrait(transient=True,
type='trait', private=True) at remote 0x7fffeeccd520>},
reset_traits=<function at remote 0x7fffeecce578>, __getstate__=<function at
remote 0x7fffeecce2a8>, sync_trait=<function at remote 0x7fffeecd1050>,
_get_sync_trait_info=<function at remote 0x7fffeecd10c8>,
_list_items_changed_handler=<function at remote 0x7fffeecd1b90>,
trait_subclasses=<classmethod at remote 0x7fffeeccba98>,
trait_view_elements=<function at remote 0x7fffeeccec08>,
__weakref__=<getset_descriptor at remote 0x7fffeecd3170>,
_is_list_trait=<function a...(truncated), locals=
    {'__builtins__': <module at remote 0x7ffff7bddad0>, '__file__':
'trait_reset_crash.py', '__package__': None, 'Int': <type at remote
0x7833e0>, 'HasTraits': <MetaHasTraits(_add_trait_category=<classmethod at
remote 0x7fffeeccb280>, _init_trait_property_listener=<function at remote
0x7fffeecd1e60>, class_trait_view=<classmethod at remote 0x7fffeeccb1a0>,
__prefix_traits__={'': <CTrait(type='python') at remote 0x7fffeeccd7e0>,
'*': ['_traits_cache_', ''], '_traits_cache_': <CTrait(transient=True,
type='trait', private=True) at remote 0x7fffeeccd520>},
reset_traits=<function at remote 0x7fffeecce578>, __getstate__=<function at
remote 0x7fffeecce2a8>, sync_trait=<function at remote 0x7fffeecd1050>,
_get_sync_trait_info=<function at remote 0x7fffeecd10c8>,
_list_items_changed_handler=<function at remote 0x7fffeecd1b90>,
trait_subclasses=<classmethod at remote 0x7fffeeccba98>,
trait_view_elements=<function at remote 0x7fffeeccec08>,
__weakref__=<getset_descriptor at remote 0x7fffeecd3170>,
_is_list_trait=<function a...(truncated), closeit=1, flags=0x7fffffffdba0)
at Python/pythonrun.c:1332
#15 0x00007ffff7d45a67 in PyRun_SimpleFileExFlags (fp=<optimized out>,
filename=0x7fffffffe086 "trait_reset_crash.py", closeit=1,
flags=0x7fffffffdba0) at Python/pythonrun.c:936
#16 0x00007ffff7d561e2 in Py_Main (argc=1, argv=0x7fffffffdcc8) at
Modules/main.c:689
#17 0x0000003a82821a05 in __libc_start_main (main=0x4007b0 <main>, argc=2,
ubp_av=0x7fffffffdcc8, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7fffffffdcb8) at libc-start.c:225
#18 0x00000000004006f9 in _start ()

On Fri, Jul 5, 2013 at 8:30 PM, Chris Farrow notifications@github.comwrote:

This is what I get from Python 2.7.3 |EPD 7.3-2 (32-bit).

Process: Python [7504]
Path: /Users/cfarrow/Library/EPD/7.3-i386/Resources/Python.app/Contents/MacOS/Python
Identifier: Python
Version: ??? (???)
Code Type: X86 (Native)
Parent Process: zsh [353]

Date/Time: 2013-07-05 09:59:41.331 -0500
OS Version: Mac OS X 10.6.8 (10K549)
Report Version: 6

Interval Since Last Report: 21126021 sec
Crashes Since Last Report: 379
Per-App Crashes Since Last Report: 254
Anonymous UUID: 818A55FB-66E4-406C-818D-023E46FA3885

Exception Type: EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000000
Crashed Thread: 0 Dispatch queue: com.apple.main-thread

Thread 0 Crashed: Dispatch queue: com.apple.main-thread
0 ctraits.so 0x016e8d8e setattr_validate3 + 62 (ctraits.c:2919)
1 ctraits.so 0x016e87ad setattr_validate_property + 45 (ctraits.c:2847)
2 ctraits.so 0x016f14dc has_traits_setattro + 284 (ctraits.c:867)
3 org.python.python 0x0005f327 PyObject_SetAttr + 151
4 org.python.python 0x000c0d96 builtin_delattr + 102
5 org.python.python 0x000cb2d1 PyEval_EvalFrameEx + 21649
6 org.python.python 0x000cd02a PyEval_EvalCodeEx + 2042
7 org.python.python 0x000cb253 PyEval_EvalFrameEx + 21523
8 org.python.python 0x000cc053 PyEval_EvalFrameEx + 25107
9 org.python.python 0x000cd02a PyEval_EvalCodeEx + 2042
10 org.python.python 0x000cb9db PyEval_EvalFrameEx + 23451
11 org.python.python 0x000cd02a PyEval_EvalCodeEx + 2042
12 org.python.python 0x000cb253 PyEval_EvalFrameEx + 21523
13 org.python.python 0x000cd02a PyEval_EvalCodeEx + 2042
14 org.python.python 0x000cb253 PyEval_EvalFrameEx + 21523
15 org.python.python 0x000cd02a PyEval_EvalCodeEx + 2042
16 org.python.python 0x000cb253 PyEval_EvalFrameEx + 21523
17 org.python.python 0x000cc053 PyEval_EvalFrameEx + 25107
18 org.python.python 0x000cd02a PyEval_EvalCodeEx + 2042
19 org.python.python 0x000cb253 PyEval_EvalFrameEx + 21523
20 org.python.python 0x000cd02a PyEval_EvalCodeEx + 2042
21 org.python.python 0x000cb253 PyEval_EvalFrameEx + 21523
22 org.python.python 0x000cd02a PyEval_EvalCodeEx + 2042
23 org.python.python 0x000cb9db PyEval_EvalFrameEx + 23451
24 org.python.python 0x000cd02a PyEval_EvalCodeEx + 2042
25 org.python.python 0x000cb253 PyEval_EvalFrameEx + 21523
26 org.python.python 0x000cd02a PyEval_EvalCodeEx + 2042
27 org.python.python 0x000cb253 PyEval_EvalFrameEx + 21523
28 org.python.python 0x000cd02a PyEval_EvalCodeEx + 2042
29 org.python.python 0x000cb253 PyEval_EvalFrameEx + 21523
30 org.python.python 0x000cd02a PyEval_EvalCodeEx + 2042
31 org.python.python 0x000cb253 PyEval_EvalFrameEx + 21523
32 org.python.python 0x000cd02a PyEval_EvalCodeEx + 2042
33 org.python.python 0x000cb253 PyEval_EvalFrameEx + 21523
34 org.python.python 0x000cd02a PyEval_EvalCodeEx + 2042
35 org.python.python 0x000cb253 PyEval_EvalFrameEx + 21523
36 org.python.python 0x000cd02a PyEval_EvalCodeEx + 2042
37 org.python.python 0x000cb253 PyEval_EvalFrameEx + 21523
38 org.python.python 0x000cd02a PyEval_EvalCodeEx + 2042
39 org.python.python 0x000cd1b7 PyEval_EvalCode + 87
40 org.python.python 0x000f1898 PyRun_FileExFlags + 168
41 org.python.python 0x000f27c3 PyRun_SimpleFileExFlags + 867
42 org.python.python 0x0010ba58 Py_Main + 3560
43 org.python.python 0x00001fb6 0x1000 + 4022

Thread 1:
0 libSystem.B.dylib 0x953bdaa2 __semwait_signal + 10
1 libSystem.B.dylib 0x953bd75e _pthread_cond_wait + 1191
2 libSystem.B.dylib 0x953bf3f8 pthread_cond_wait$UNIX2003 + 73
3 org.python.python 0x0010882c PyThread_acquire_lock + 172
4 org.python.python 0x0010d7e3 lock_PyThread_acquire_lock + 83
5 org.python.python 0x000cb2d1 PyEval_EvalFrameEx + 21649
6 org.python.python 0x000cd02a PyEval_EvalCodeEx + 2042
7 org.python.python 0x000cb253 PyEval_EvalFrameEx + 21523
8 org.python.python 0x000cd02a PyEval_EvalCodeEx + 2042
9 org.python.python 0x000cb253 PyEval_EvalFrameEx + 21523
10 org.python.python 0x000cd02a PyEval_EvalCodeEx + 2042
11 org.python.python 0x00042282 function_call + 162
12 org.python.python 0x0000f635 PyObject_Call + 85
13 org.python.python 0x000c889b PyEval_EvalFrameEx + 10843
14 org.python.python 0x000cd02a PyEval_EvalCodeEx + 2042
15 org.python.python 0x000cb253 PyEval_EvalFrameEx + 21523
16 org.python.python 0x000cc053 PyEval_EvalFrameEx + 25107
17 org.python.python 0x000cc053 PyEval_EvalFrameEx + 25107
18 org.python.python 0x000cd02a PyEval_EvalCodeEx + 2042
19 org.python.python 0x00042282 function_call + 162
20 org.python.python 0x0000f635 PyObject_Call + 85
21 org.python.python 0x00021fe6 instancemethod_call + 422
22 org.python.python 0x0000f635 PyObject_Call + 85
23 org.python.python 0x000c4eae PyEval_CallObjectWithKeywords + 78
24 org.python.python 0x0010e18c t_bootstrap + 76
25 libSystem.B.dylib 0x953bd259 _pthread_start + 345
26 libSystem.B.dylib 0x953bd0de thread_start + 34

Thread 0 crashed with X86 Thread State (32-bit):
eax: 0x00000000 ebx: 0x05faedc8 ecx: 0x0637482c edx: 0x0016e200
edi: 0x00220b00 esi: 0x0633ca50 ebp: 0xbfffbe18 esp: 0xbfffbde0
ss: 0x00000023 efl: 0x00010202 eip: 0x016e8d8e cs: 0x0000001b
ds: 0x00000023 es: 0x00000023 fs: 0x00000000 gs: 0x0000000f
cr2: 0x00000000

Binary Images:
0x1000 - 0x1ff8 +org.python.python 2.7.3 (2.7.3) /Users/cfarrow/Library/EPD/7.3-i386/Resources/Python.app/Contents/MacOS/Python
0x5000 - 0x144fe3 +org.python.python 2.7.3, (c) 2004-2012 Python Software Foundation. (2.7.3) <119EA2B3-75A7-46DD-2E4A-1EA3E4BB97AA> /Users/cfarrow/Library/EPD/7.3-i386/Python
0x2de000 - 0x2dffff +time.so ??? (???) /Users/cfarrow/Library/EPD/7.3-i386/lib/python2.7/lib-dynload/time.so
0x2e6000 - 0x2e9ff3 +_collections.so ??? (???) <00C78753-80C8-D87D-4AEE-2C07926734D6> /Users/cfarrow/Library/EPD/7.3-i386/lib/python2.7/lib-dynload/_collections.so
0x2ef000 - 0x2f2ff7 +operator.so ??? (???) <57A3BC94-2264-3534-B786-3323BFE1B930> /Users/cfarrow/Library/EPD/7.3-i386/lib/python2.7/lib-dynload/operator.so
0x2f9000 - 0x2f9ff5 +_bisect.so ??? (???) /Users/cfarrow/Library/EPD/7.3-i386/lib/python2.7/lib-dynload/_bisect.so
0x440000 - 0x445ff6 +itertools.so ??? (???) /Users/cfarrow/Library/EPD/7.3-i386/lib/python2.7/lib-dynload/itertools.so
0x44e000 - 0x44fff9 +_heapq.so ??? (???) <97BC59E6-31E3-3AB4-8EF8-1404A287E48B> /Users/cfarrow/Library/EPD/7.3-i386/lib/python2.7/lib-dynload/_heapq.so
0x454000 - 0x457fff +strop.so ??? (???) /Users/cfarrow/Library/EPD/7.3-i386/lib/python2.7/lib-dynload/strop.so
0x49d000 - 0x49fff2 +binascii.so ??? (???) <3ADAB0FD-B3C7-E1EB-2374-4D41DE22934A> /Users/cfarrow/Library/EPD/7.3-i386/lib/python2.7/lib-dynload/binascii.so
0x4a4000 - 0x4b0fff +datetime.so ??? (???) <73B65845-1148-6BEB-252F-DF77EC8E983A> /Users/cfarrow/Library/EPD/7.3-i386/lib/python2.7/lib-dynload/datetime.so
0x4bb000 - 0x4bcfff +cStringIO.so ??? (???) <523543A0-B849-C675-34FC-31BC1A1F5ABD> /Users/cfarrow/Library/EPD/7.3-i386/lib/python2.7/lib-dynload/cStringIO.so
0x4c1000 - 0x4f0fe7 +pyexpat.so ??? (???) <00104B2B-EE2C-A2B7-8657-63A4A6B984CB> /Users/cfarrow/Library/EPD/7.3-i386/lib/python2.7/lib-dynload/pyexpat.so
0x5a0000 - 0x5a1ff3 +_functools.so ??? (???) <33CA429F-D239-3953-D75C-CE5D65602447> /Users/cfarrow/Library/EPD/7.3-i386/lib/python2.7/lib-dynload/_functools.so
0x5a5000 - 0x5a6ff4 +_locale.so ??? (???) <5BB18782-353E-A0B0-1844-AF15DBC5DDD6> /Users/cfarrow/Library/EPD/7.3-i386/lib/python2.7/lib-dynload/_locale.so
0x5aa000 - 0x5adfff +_struct.so ??? (???) <55AAC0F0-39BB-822C-B47F-02992084B2AC> /Users/cfarrow/Library/EPD/7.3-i386/lib/python2.7/lib-dynload/_struct.so
0x5b4000 - 0x5b8fef +math.so ??? (???) <2741353A-0668-C3A5-8B2B-54CA3DF85BEF> /Users/cfarrow/Library/EPD/7.3-i386/lib/python2.7/lib-dynload/math.so
0x5be000 - 0x5befff +_hashlib.so ??? (???) <03DCF7A6-6241-6D7C-9C12-4DB417AE4B72> /Users/cfarrow/Library/EPD/7.3-i386/lib/python2.7/lib-dynload/_hashlib.so
0x5c2000 - 0x5e8fff libssl.0.9.7.dylib 0.9.7 (compatibility 0.9.7) <1C17D1BE-1E54-70CF-07B2-86E5DA647C81> /usr/lib/libssl.0.9.7.dylib
0x5f7000 - 0x6acfe7 libcrypto.0.9.7.dylib 0.9.7 (compatibility 0.9.7) <78B6EEB6-50D9-4479-D1A5-B4C381A07E4D> /usr/lib/libcrypto.0.9.7.dylib
0x6f2000 - 0x6f5ffe +_sha256.so ??? (???) /Users/cfarrow/Library/EPD/7.3-i386/lib/python2.7/lib-dynload/_sha256.so
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Reply to this email directly or view it on GitHubhttps://github.com//issues/67#issuecomment-20523184
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@jvkersch
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The problem is that reset_traits calls delete on the trait, which sets the trait to (PyObject *)NULL, and setattr_validate_property doesn't check for that. The solution seems to be to have a check for that case, and call set_delete_property_error before doing validation. I have a small PR to illustrate this.

@jvkersch jvkersch mentioned this issue Feb 13, 2014
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mdickinson added a commit that referenced this issue Feb 25, 2014
@mdickinson
Merge pull request #138 from enthought/fix-issue-67-ctraits
3144ea6 
Check for property deletion (#67)
@cfarrow
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cfarrow commented Apr 15, 2014

This was fixed in #138.

@cfarrow cfarrow closed this as completed Apr 15, 2014
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