[SciPy-User] Scipy test failure

John Reid j.reid@mail.cryst.bbk.ac...
Wed Apr 7 09:59:10 CDT 2010



Bruce Southey wrote:
>  From one of Robert's instructions:
> 
> $ gdb python2.5
> ...
> (gdb) run
> Starting program ...
> ... # Possibly another (gdb) prompt:
> (gdb) continue  #<- Type this.
> Python 2.6.2 ...
> 
> 
>>>>>>>  import numpy  #<- Type this and do whatever else is necessary to reproduce the crash.
>>>>        
> ... (gdb) bt # <- Type this. .... # <- Copy-paste these results here.
> 

Here's the stack trace. Since moving to GotoBlas2, the segmentation 
violation seems to be in test_decomp.test_lapack_misaligned(<function 
cholesky at 0xb4a022cc>, ...

Any ideas?

test_decomp.test_lapack_misaligned(<function svd at 0xb4a02224>, 
(array([[ 1.,  0.,  0.,  0.,  0.,  0.,  0.,  0.,  0.,  0.], ... ok
test_decomp.test_lapack_misaligned(<function svd at 0xb4a02224>, 
(array([[ 0,  1,  2,  3,  4,  5,  6,  7,  8,  9], ... ok
test_decomp.test_lapack_misaligned(<function svd at 0xb4a02224>, 
(array([[  1.73394741e-255,   8.18880997e-217,   4.02522535e-178, ... ok
test_decomp.test_lapack_misaligned(<function svdvals at 0xb4a0225c>, 
(array([[  1.73394741e-255,   8.18880997e-217,   4.02522535e-178, ... ok
test_decomp.test_lapack_misaligned(<function svdvals at 0xb4a0225c>, 
(array([[  1.73394741e-255,   8.18880997e-217,   4.02522535e-178, ... ok
test_decomp.test_lapack_misaligned(<function cholesky at 0xb4a022cc>, 
(array([[ 1.,  0.,  0.,  0.,  0.,  0.,  0.,  0.,  0.,  0.], ...
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1209674064 (LWP 20248)]
0xb44167f0 in chroot () from /usr/local/lib/libgoto2_opteronp-r1.13.so
(gdb) bt
#0  0xb44167f0 in chroot () from /usr/local/lib/libgoto2_opteronp-r1.13.so
#1  0xb4887cdc in chroot () from /usr/local/lib/libgoto2_opteronp-r1.13.so
#2  0x00000003 in ?? ()
#3  0x09070f7c in ?? ()
#4  0xb40ec6e3 in ddot_ () from /usr/local/lib/libgoto2_opteronp-r1.13.so
#5  0xb19297f2 in dpotf2_ () from 
/usr/local/lib/python2.5/site-packages/scipy/linalg/flapack.so
#6  0xb192a173 in dpotrf_ () from 
/usr/local/lib/python2.5/site-packages/scipy/linalg/flapack.so
#7  0xb1881338 in f2py_rout_flapack_dpotrf (capi_self=0xb49f24d0, 
capi_args=0xaf2699cc, capi_keywds=0xaf2803e4, f2py_func=0xb1929d70 
<dpotrf_>)
     at 
build/src.linux-i686-2.5/build/src.linux-i686-2.5/scipy/linalg/flapackmodule.c:13235
#8  0xb1899951 in fortran_call (fp=0x2, arg=0xaf2699cc, kw=0xaf2803e4) 
at build/src.linux-i686-2.5/fortranobject.c:346
#9  0x0805a427 in PyObject_Call (func=0x2, arg=0xaf2699cc, 
kw=0xaf2803e4) at Objects/abstract.c:1861
#10 0x080c114a in PyEval_EvalFrameEx (f=0x903879c, throwflag=0) at 
Python/ceval.c:3784
#11 0x080c7265 in PyEval_EvalCodeEx (co=0xb49fc068, globals=0xb49f7f0c, 
locals=0x0, args=0xaf269978, argcount=1, kws=0x9029868, kwcount=1, 
defs=0xb4a005f8, defcount=2,
     closure=0x0) at Python/ceval.c:2836
#12 0x0810e456 in function_call (func=0xb4a022cc, arg=0xaf26996c, 
kw=0xaf28013c) at Objects/funcobject.c:517
#13 0x0805a427 in PyObject_Call (func=0x2, arg=0xaf26996c, 
kw=0xaf28013c) at Objects/abstract.c:1861
#14 0x080c4168 in PyEval_EvalFrameEx (f=0x8ffda8c, throwflag=0) at 
Python/ceval.c:3853
#15 0x080c7265 in PyEval_EvalCodeEx (co=0xaf2999b0, globals=0xafe209bc, 
locals=0x0, args=0xafde1768, argcount=3, kws=0x0, kwcount=0, defs=0x0, 
defcount=0, closure=0x0)
     at Python/ceval.c:2836
#16 0x0810e381 in function_call (func=0xafd5acdc, arg=0xafde175c, 
kw=0x0) at Objects/funcobject.c:517
#17 0x0805a427 in PyObject_Call (func=0x2, arg=0xafde175c, kw=0x0) at 
Objects/abstract.c:1861
#18 0x080c4168 in PyEval_EvalFrameEx (f=0x8d736dc, throwflag=0) at 
Python/ceval.c:3853
#19 0x080c5d9c in PyEval_EvalFrameEx (f=0x8fc187c, throwflag=0) at 
Python/ceval.c:3659
#20 0x080c7265 in PyEval_EvalCodeEx (co=0xb7af8c80, globals=0xb7bbe934, 
locals=0x0, args=0xafd467d8, argcount=2, kws=0x9017618, kwcount=0, 
defs=0xb7b03e18, defcount=1,
     closure=0x0) at Python/ceval.c:2836
#21 0x0810e456 in function_call (func=0xb7afefb4, arg=0xafd467cc, 
kw=0xaf2659bc) at Objects/funcobject.c:517
#22 0x0805a427 in PyObject_Call (func=0x2, arg=0xafd467cc, 
kw=0xaf2659bc) at Objects/abstract.c:1861
#23 0x080c4168 in PyEval_EvalFrameEx (f=0x8fc1714, throwflag=0) at 
Python/ceval.c:3853
#24 0x080c7265 in PyEval_EvalCodeEx (co=0xb7af8cc8, globals=0xb7bbe934, 
locals=0x0, args=0xafd43b98, argcount=2, kws=0x0, kwcount=0, defs=0x0, 
defcount=0, closure=0x0)
     at Python/ceval.c:2836
#25 0x0810e381 in function_call (func=0xb7b0602c, arg=0xafd43b8c, 
kw=0x0) at Objects/funcobject.c:517
#26 0x0805a427 in PyObject_Call (func=0x2, arg=0xafd43b8c, kw=0x0) at 
Objects/abstract.c:1861
#27 0x08060557 in instancemethod_call (func=0xb7b0602c, arg=0xafd43b8c, 
kw=0x0) at Objects/classobject.c:2519
#28 0x0805a427 in PyObject_Call (func=0x2, arg=0xaf26992c, kw=0x0) at 
Objects/abstract.c:1861
#29 0x0809a290 in slot_tp_call (self=0xaf2694ec, args=0xaf26992c, 
kwds=0x0) at Objects/typeobject.c:4714
#30 0x0805a427 in PyObject_Call (func=0x2, arg=0xaf26992c, kw=0x0) at 
Objects/abstract.c:1861
#31 0x080c114a in PyEval_EvalFrameEx (f=0x8fc15ac, throwflag=0) at 
Python/ceval.c:3784
#32 0x080c5d9c in PyEval_EvalFrameEx (f=0x8fc142c, throwflag=0) at 
Python/ceval.c:3659
#33 0x080c7265 in PyEval_EvalCodeEx (co=0xb737cec0, globals=0xb7594934, 
locals=0x0, args=0xafd6bf78, argcount=2, kws=0x8f37308, kwcount=0, 
defs=0x0, defcount=0, closure=0x0)
     at Python/ceval.c:2836
#34 0x0810e456 in function_call (func=0xb751dbfc, arg=0xafd6bf6c, 
kw=0xaf26579c) at Objects/funcobject.c:517
#35 0x0805a427 in PyObject_Call (func=0x2, arg=0xafd6bf6c, 
kw=0xaf26579c) at Objects/abstract.c:1861
#36 0x080c4168 in PyEval_EvalFrameEx (f=0x8fc12c4, throwflag=0) at 
Python/ceval.c:3853
#37 0x080c7265 in PyEval_EvalCodeEx (co=0xb737cb18, globals=0xb7594934, 
locals=0x0, args=0xafddfb78, argcount=2, kws=0x0, kwcount=0, defs=0x0, 
defcount=0, closure=0x0)
     at Python/ceval.c:2836
---Type <return> to continue, or q <return> to quit---
#38 0x0810e381 in function_call (func=0xb751da04, arg=0xafddfb6c, 
kw=0x0) at Objects/funcobject.c:517
#39 0x0805a427 in PyObject_Call (func=0x2, arg=0xafddfb6c, kw=0x0) at 
Objects/abstract.c:1861
#40 0x08060557 in instancemethod_call (func=0xb751da04, arg=0xafddfb6c, 
kw=0x0) at Objects/classobject.c:2519
#41 0x0805a427 in PyObject_Call (func=0x2, arg=0xafe3caec, kw=0x0) at 
Objects/abstract.c:1861
#42 0x0809a290 in slot_tp_call (self=0xaf1dfcac, args=0xafe3caec, 
kwds=0x0) at Objects/typeobject.c:4714
#43 0x0805a427 in PyObject_Call (func=0x2, arg=0xafe3caec, kw=0x0) at 
Objects/abstract.c:1861
#44 0x080c114a in PyEval_EvalFrameEx (f=0x903802c, throwflag=0) at 
Python/ceval.c:3784
#45 0x080c7265 in PyEval_EvalCodeEx (co=0xb75242f0, globals=0xb759468c, 
locals=0x0, args=0xafd46758, argcount=2, kws=0x904a9f0, kwcount=0, 
defs=0x0, defcount=0, closure=0x0)
     at Python/ceval.c:2836
#46 0x0810e456 in function_call (func=0xb752e72c, arg=0xafd4674c, 
kw=0xaf26546c) at Objects/funcobject.c:517
#47 0x0805a427 in PyObject_Call (func=0x2, arg=0xafd4674c, 
kw=0xaf26546c) at Objects/abstract.c:1861
#48 0x080c4168 in PyEval_EvalFrameEx (f=0x90421e4, throwflag=0) at 
Python/ceval.c:3853
#49 0x080c7265 in PyEval_EvalCodeEx (co=0xb75241d0, globals=0xb759468c, 
locals=0x0, args=0xafd3c8f8, argcount=2, kws=0x0, kwcount=0, defs=0x0, 
defcount=0, closure=0x0)
     at Python/ceval.c:2836
#50 0x0810e381 in function_call (func=0xb752e684, arg=0xafd3c8ec, 
kw=0x0) at Objects/funcobject.c:517
#51 0x0805a427 in PyObject_Call (func=0x2, arg=0xafd3c8ec, kw=0x0) at 
Objects/abstract.c:1861
#52 0x08060557 in instancemethod_call (func=0xb752e684, arg=0xafd3c8ec, 
kw=0x0) at Objects/classobject.c:2519
#53 0x0805a427 in PyObject_Call (func=0x2, arg=0xafe2d32c, kw=0x0) at 
Objects/abstract.c:1861
#54 0x0809a290 in slot_tp_call (self=0xafe2dc4c, args=0xafe2d32c, 
kwds=0x0) at Objects/typeobject.c:4714
#55 0x0805a427 in PyObject_Call (func=0x2, arg=0xafe2d32c, kw=0x0) at 
Objects/abstract.c:1861
#56 0x080c114a in PyEval_EvalFrameEx (f=0x8fea97c, throwflag=0) at 
Python/ceval.c:3784
#57 0x080c7265 in PyEval_EvalCodeEx (co=0xb75242f0, globals=0xb759468c, 
locals=0x0, args=0xafddf538, argcount=2, kws=0x8fb9020, kwcount=0, 
defs=0x0, defcount=0, closure=0x0)
     at Python/ceval.c:2836
#58 0x0810e456 in function_call (func=0xb752e72c, arg=0xafddf52c, 
kw=0xafe1ad74) at Objects/funcobject.c:517
#59 0x0805a427 in PyObject_Call (func=0x2, arg=0xafddf52c, 
kw=0xafe1ad74) at Objects/abstract.c:1861
#60 0x080c4168 in PyEval_EvalFrameEx (f=0x8fccd84, throwflag=0) at 
Python/ceval.c:3853
#61 0x080c7265 in PyEval_EvalCodeEx (co=0xb75241d0, globals=0xb759468c, 
locals=0x0, args=0xafd462d8, argcount=2, kws=0x0, kwcount=0, defs=0x0, 
defcount=0, closure=0x0)
     at Python/ceval.c:2836
#62 0x0810e381 in function_call (func=0xb752e684, arg=0xafd462cc, 
kw=0x0) at Objects/funcobject.c:517
#63 0x0805a427 in PyObject_Call (func=0x2, arg=0xafd462cc, kw=0x0) at 
Objects/abstract.c:1861
#64 0x08060557 in instancemethod_call (func=0xb752e684, arg=0xafd462cc, 
kw=0x0) at Objects/classobject.c:2519
#65 0x0805a427 in PyObject_Call (func=0x2, arg=0xafe2d1cc, kw=0x0) at 
Objects/abstract.c:1861
#66 0x0809a290 in slot_tp_call (self=0xafe2dccc, args=0xafe2d1cc, 
kwds=0x0) at Objects/typeobject.c:4714
#67 0x0805a427 in PyObject_Call (func=0x2, arg=0xafe2d1cc, kw=0x0) at 
Objects/abstract.c:1861
#68 0x080c114a in PyEval_EvalFrameEx (f=0x8f8e88c, throwflag=0) at 
Python/ceval.c:3784
#69 0x080c7265 in PyEval_EvalCodeEx (co=0xb75242f0, globals=0xb759468c, 
locals=0x0, args=0xafeaba78, argcount=2, kws=0x8ef0d48, kwcount=0, 
defs=0x0, defcount=0, closure=0x0)
     at Python/ceval.c:2836
#70 0x0810e456 in function_call (func=0xb752e72c, arg=0xafeaba6c, 
kw=0xafe36c64) at Objects/funcobject.c:517
#71 0x0805a427 in PyObject_Call (func=0x2, arg=0xafeaba6c, 
kw=0xafe36c64) at Objects/abstract.c:1861
#72 0x080c4168 in PyEval_EvalFrameEx (f=0x8f4793c, throwflag=0) at 
Python/ceval.c:3853
#73 0x080c7265 in PyEval_EvalCodeEx (co=0xb75241d0, globals=0xb759468c, 
locals=0x0, args=0xafeab438, argcount=2, kws=0x0, kwcount=0, defs=0x0, 
defcount=0, closure=0x0)
     at Python/ceval.c:2836
#74 0x0810e381 in function_call (func=0xb752e684, arg=0xafeab42c, 
kw=0x0) at Objects/funcobject.c:517
#75 0x0805a427 in PyObject_Call (func=0x2, arg=0xafeab42c, kw=0x0) at 
Objects/abstract.c:1861
#76 0x08060557 in instancemethod_call (func=0xb752e684, arg=0xafeab42c, 
kw=0x0) at Objects/classobject.c:2519
---Type <return> to continue, or q <return> to quit---
#77 0x0805a427 in PyObject_Call (func=0x2, arg=0xafeb210c, kw=0x0) at 
Objects/abstract.c:1861
#78 0x0809a290 in slot_tp_call (self=0xb36ab34c, args=0xafeb210c, 
kwds=0x0) at Objects/typeobject.c:4714
#79 0x0805a427 in PyObject_Call (func=0x2, arg=0xafeb210c, kw=0x0) at 
Objects/abstract.c:1861
#80 0x080c114a in PyEval_EvalFrameEx (f=0x8fc6524, throwflag=0) at 
Python/ceval.c:3784
#81 0x080c7265 in PyEval_EvalCodeEx (co=0xb75242f0, globals=0xb759468c, 
locals=0x0, args=0xafe9dad8, argcount=2, kws=0x8c89b38, kwcount=0, 
defs=0x0, defcount=0, closure=0x0)
     at Python/ceval.c:2836
#82 0x0810e456 in function_call (func=0xb752e72c, arg=0xafe9dacc, 
kw=0xafe36acc) at Objects/funcobject.c:517
#83 0x0805a427 in PyObject_Call (func=0x2, arg=0xafe9dacc, 
kw=0xafe36acc) at Objects/abstract.c:1861
#84 0x080c4168 in PyEval_EvalFrameEx (f=0x8fc70cc, throwflag=0) at 
Python/ceval.c:3853
#85 0x080c7265 in PyEval_EvalCodeEx (co=0xb75241d0, globals=0xb759468c, 
locals=0x0, args=0xafe80e58, argcount=2, kws=0x0, kwcount=0, defs=0x0, 
defcount=0, closure=0x0)
     at Python/ceval.c:2836
#86 0x0810e381 in function_call (func=0xb752e684, arg=0xafe80e4c, 
kw=0x0) at Objects/funcobject.c:517
#87 0x0805a427 in PyObject_Call (func=0x2, arg=0xafe80e4c, kw=0x0) at 
Objects/abstract.c:1861
#88 0x08060557 in instancemethod_call (func=0xb752e684, arg=0xafe80e4c, 
kw=0x0) at Objects/classobject.c:2519
#89 0x0805a427 in PyObject_Call (func=0x2, arg=0xafffb36c, kw=0x0) at 
Objects/abstract.c:1861
#90 0x0809a290 in slot_tp_call (self=0xb4a078cc, args=0xafffb36c, 
kwds=0x0) at Objects/typeobject.c:4714
#91 0x0805a427 in PyObject_Call (func=0x2, arg=0xafffb36c, kw=0x0) at 
Objects/abstract.c:1861
#92 0x080c114a in PyEval_EvalFrameEx (f=0x8d4107c, throwflag=0) at 
Python/ceval.c:3784
#93 0x080c7265 in PyEval_EvalCodeEx (co=0xb75242f0, globals=0xb759468c, 
locals=0x0, args=0xafeea838, argcount=2, kws=0x8cbaf00, kwcount=0, 
defs=0x0, defcount=0, closure=0x0)
     at Python/ceval.c:2836
#94 0x0810e456 in function_call (func=0xb752e72c, arg=0xafeea82c, 
kw=0xafe36a44) at Objects/funcobject.c:517
#95 0x0805a427 in PyObject_Call (func=0x2, arg=0xafeea82c, 
kw=0xafe36a44) at Objects/abstract.c:1861
#96 0x080c4168 in PyEval_EvalFrameEx (f=0x8d40f14, throwflag=0) at 
Python/ceval.c:3853
#97 0x080c7265 in PyEval_EvalCodeEx (co=0xb75241d0, globals=0xb759468c, 
locals=0x0, args=0xb00a83f8, argcount=2, kws=0x0, kwcount=0, defs=0x0, 
defcount=0, closure=0x0)
     at Python/ceval.c:2836
#98 0x0810e381 in function_call (func=0xb752e684, arg=0xb00a83ec, 
kw=0x0) at Objects/funcobject.c:517
#99 0x0805a427 in PyObject_Call (func=0x2, arg=0xb00a83ec, kw=0x0) at 
Objects/abstract.c:1861
#100 0x08060557 in instancemethod_call (func=0xb752e684, arg=0xb00a83ec, 
kw=0x0) at Objects/classobject.c:2519
#101 0x0805a427 in PyObject_Call (func=0x2, arg=0xb004224c, kw=0x0) at 
Objects/abstract.c:1861
#102 0x0809a290 in slot_tp_call (self=0xb743d9cc, args=0xb004224c, 
kwds=0x0) at Objects/typeobject.c:4714
#103 0x0805a427 in PyObject_Call (func=0x2, arg=0xb004224c, kw=0x0) at 
Objects/abstract.c:1861
#104 0x080c114a in PyEval_EvalFrameEx (f=0x8d3ff14, throwflag=0) at 
Python/ceval.c:3784
#105 0x080c7265 in PyEval_EvalCodeEx (co=0xb75242f0, globals=0xb759468c, 
locals=0x0, args=0xb0066e38, argcount=2, kws=0x8bab7f0, kwcount=0, 
defs=0x0, defcount=0, closure=0x0)
     at Python/ceval.c:2836
#106 0x0810e456 in function_call (func=0xb752e72c, arg=0xb0066e2c, 
kw=0xafe368ac) at Objects/funcobject.c:517
#107 0x0805a427 in PyObject_Call (func=0x2, arg=0xb0066e2c, 
kw=0xafe368ac) at Objects/abstract.c:1861
#108 0x080c4168 in PyEval_EvalFrameEx (f=0x8c7b174, throwflag=0) at 
Python/ceval.c:3853
#109 0x080c7265 in PyEval_EvalCodeEx (co=0xb75241d0, globals=0xb759468c, 
locals=0x0, args=0xb743b9b8, argcount=2, kws=0x0, kwcount=0, defs=0x0, 
defcount=0, closure=0x0)
     at Python/ceval.c:2836
#110 0x0810e381 in function_call (func=0xb752e684, arg=0xb743b9ac, 
kw=0x0) at Objects/funcobject.c:517
#111 0x0805a427 in PyObject_Call (func=0x2, arg=0xb743b9ac, kw=0x0) at 
Objects/abstract.c:1861
#112 0x08060557 in instancemethod_call (func=0xb752e684, arg=0xb743b9ac, 
kw=0x0) at Objects/classobject.c:2519
#113 0x0805a427 in PyObject_Call (func=0x2, arg=0xb003cd2c, kw=0x0) at 
Objects/abstract.c:1861
#114 0x0809a290 in slot_tp_call (self=0xb743bfcc, args=0xb003cd2c, 
kwds=0x0) at Objects/typeobject.c:4714
#115 0x0805a427 in PyObject_Call (func=0x2, arg=0xb003cd2c, kw=0x0) at 
Objects/abstract.c:1861
---Type <return> to continue, or q <return> to quit---
#116 0x080c114a in PyEval_EvalFrameEx (f=0x8d3e6fc, throwflag=0) at 
Python/ceval.c:3784
#117 0x080c5d9c in PyEval_EvalFrameEx (f=0x85507ec, throwflag=0) at 
Python/ceval.c:3659
#118 0x080c5d9c in PyEval_EvalFrameEx (f=0x852cfbc, throwflag=0) at 
Python/ceval.c:3659
#119 0x080c7265 in PyEval_EvalCodeEx (co=0xb7b01188, globals=0xb7bbe934, 
locals=0x0, args=0xb75061f8, argcount=1, kws=0x850f698, kwcount=5, 
defs=0xb7b051b8, defcount=5,
     closure=0x0) at Python/ceval.c:2836
#120 0x0810e456 in function_call (func=0xb7b06b54, arg=0xb75061ec, 
kw=0xb7436a44) at Objects/funcobject.c:517
#121 0x0805a427 in PyObject_Call (func=0x2, arg=0xb75061ec, 
kw=0xb7436a44) at Objects/abstract.c:1861
#122 0x08060557 in instancemethod_call (func=0xb7b06b54, arg=0xb75061ec, 
kw=0xb7436a44) at Objects/classobject.c:2519
#123 0x0805a427 in PyObject_Call (func=0x2, arg=0xb75061ec, 
kw=0xb7436a44) at Objects/abstract.c:1861
#124 0x080c4168 in PyEval_EvalFrameEx (f=0x84c5db4, throwflag=0) at 
Python/ceval.c:3853
#125 0x080c7265 in PyEval_EvalCodeEx (co=0xb76ac6e0, globals=0xb76b368c, 
locals=0x0, args=0xb7db1ab8, argcount=1, kws=0x8524070, kwcount=3, 
defs=0xb752a350, defcount=11,
     closure=0x0) at Python/ceval.c:2836
#126 0x0810e456 in function_call (func=0xb7531374, arg=0xb7db1aac, 
kw=0xb743679c) at Objects/funcobject.c:517
#127 0x0805a427 in PyObject_Call (func=0x2, arg=0xb7db1aac, 
kw=0xb743679c) at Objects/abstract.c:1861
#128 0x08060557 in instancemethod_call (func=0xb7531374, arg=0xb7db1aac, 
kw=0xb743679c) at Objects/classobject.c:2519
#129 0x0805a427 in PyObject_Call (func=0x2, arg=0xb7e1d02c, 
kw=0xb743679c) at Objects/abstract.c:1861
#130 0x08099f1b in slot_tp_init (self=0xb742c4ec, args=0xb7e1d02c, 
kwds=0xb743679c) at Objects/typeobject.c:4943
#131 0x0809c9a3 in type_call (type=0x85386a4, args=0xb7e1d02c, 
kwds=0xb743679c) at Objects/typeobject.c:436
#132 0x0805a427 in PyObject_Call (func=0x2, arg=0xb7e1d02c, 
kw=0xb743679c) at Objects/abstract.c:1861
#133 0x080c114a in PyEval_EvalFrameEx (f=0x8414e34, throwflag=0) at 
Python/ceval.c:3784
#134 0x080c7265 in PyEval_EvalCodeEx (co=0xb7b13380, globals=0xb7b0868c, 
locals=0x0, args=0x8202b24, argcount=1, kws=0x8202b28, kwcount=1, 
defs=0xb7b15458, defcount=5,
     closure=0x0) at Python/ceval.c:2836
#135 0x080c55f5 in PyEval_EvalFrameEx (f=0x82029ec, throwflag=0) at 
Python/ceval.c:3669
#136 0x080c7265 in PyEval_EvalCodeEx (co=0xb7da86e0, globals=0xb7e36acc, 
locals=0xb7e36acc, args=0x0, argcount=0, kws=0x0, kwcount=0, defs=0x0, 
defcount=0, closure=0x0)
     at Python/ceval.c:2836
#137 0x080c72d7 in PyEval_EvalCode (co=0xb7da86e0, globals=0xb7e36acc, 
locals=0xb7e36acc) at Python/ceval.c:494
#138 0x080e66e3 in PyRun_InteractiveOneFlags (fp=0xb7f7c440, 
filename=0x811edc4 "<stdin>", flags=0xbfad3ea8) at Python/pythonrun.c:1273
#139 0x080e6916 in PyRun_InteractiveLoopFlags (fp=0xb7f7c440, 
filename=0x811edc4 "<stdin>", flags=0xbfad3ea8) at Python/pythonrun.c:723
#140 0x080e6a32 in PyRun_AnyFileExFlags (fp=0xb7f7c440, 
filename=0x811edc4 "<stdin>", closeit=0, flags=0xbfad3ea8) at 
Python/pythonrun.c:692
#141 0x08056e3a in Py_Main (argc=0, argv=0xbfad3f74) at Modules/main.c:523
#142 0x08056382 in main (argc=Cannot access memory at address 0x2
) at ./Modules/python.c:23



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