#9958: Upgrade python to 2.7
---------------------------+------------------------------------------------
Reporter: mhampton | Owner: tbd
Type: enhancement | Status: needs_work
Priority: major | Milestone:
Component: packages | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
---------------------------+------------------------------------------------
Comment(by fbissey):
It looks like the crash problems originates somewhere in libsingular
{{{
sage: f = Zmod(6).cover()
sage: f.kernel()
Principal ideal (6) of Integer Ring
sage: R.<x,y> = PolynomialRing(QQ, 2)
sage: S.<a,b> = R.quo(x^2 + y^2)
sage: phi = S.cover()
sage: phi == loads(dumps(phi))
True
sage: phi == R.quo(x^2 + y^3).cover()
Program received signal SIGSEGV, Segmentation fault.
id_Delete (h=0x50687d8, r=0x0) at ideals.cc:127
127 ideals.cc: No such file or directory.
in ideals.cc
(gdb) bt
#0 id_Delete (h=0x50687d8, r=0x0) at ideals.cc:127
#1 0x00007fffb9670b49 in
__pyx_pf_4sage_4libs_8singular_17groebner_strategy_16GroebnerStrategy_1__dealloc__
(
o=<value optimized out>) at
sage/libs/singular/groebner_strategy.cpp:2570
#2
__pyx_tp_dealloc_4sage_4libs_8singular_17groebner_strategy_GroebnerStrategy
(o=<value optimized out>)
at sage/libs/singular/groebner_strategy.cpp:3190
#3 0x00007ffff7aa98c7 in PyDict_Clear (op=<value optimized out>) at
Objects/dictobject.c:891
#4 0x00007ffff7aa990f in dict_tp_clear (op=<value optimized out>) at
Objects/dictobject.c:2088
#5 0x00007ffff7b32f27 in delete_garbage (generation=0) at
Modules/gcmodule.c:769
#6 collect (generation=0) at Modules/gcmodule.c:930
#7 0x00007ffff7b33616 in collect_generations (basicsize=<value optimized
out>) at Modules/gcmodule.c:996
#8 _PyObject_GC_Malloc (basicsize=<value optimized out>) at
Modules/gcmodule.c:1457
#9 0x00007ffff7ac4a96 in PyType_GenericAlloc (type=0x7ffff7d9ad40,
nitems=0) at Objects/typeobject.c:744
#10 0x00007ffff7a8d256 in BaseException_new (type=<value optimized out>,
args=<value optimized out>, kwds=<value optimized out>)
at Objects/exceptions.c:34
#11 0x00007ffff7ac57b5 in type_call (type=0x7ffff7d9ad40, args=0x4ae46d0,
kwds=0x0) at Objects/typeobject.c:712
#12 0x00007ffff7a77539 in PyObject_Call (func=0x7ffff7d9ad40,
arg=0x4ae46d0, kw=0x0) at Objects/abstract.c:2529
#13 0x00007ffff7b00b45 in PyEval_CallObjectWithKeywords
(func=0x7ffff7d9ad40, arg=0x4ae46d0, kw=0x0) at Python/ceval.c:3881
#14 0x00007ffff7b10443 in PyErr_NormalizeException (exc=0x7fffffffa778,
val=0x7fffffffa770, tb=0x7fffffffa768)
at Python/errors.c:190
#15 0x00007fffe433021c in __Pyx_GetException (type=0x7fffffffa7c0,
value=0x7fffffffa7b8, tb=0x7fffffffa7c8)
at sage/structure/parent.c:20909
#16 0x00007fffe433e4d1 in
__pyx_pf_4sage_9structure_6parent_6Parent_2element_class
(__pyx_v_self=0x4aea500,
unused=<value optimized out>) at sage/structure/parent.c:4251
#17 0x00007ffff7aac1e2 in PyCFunction_Call (func=0x504ebd8,
arg=0x7ffff7f81050, kw=<value optimized out>)
at Objects/methodobject.c:90
#18 0x00007ffff7a77539 in PyObject_Call (func=0x504ebd8,
arg=0x7ffff7f81050, kw=0x0) at Objects/abstract.c:2529
#19 0x00007ffff7b00b45 in PyEval_CallObjectWithKeywords (func=0x504ebd8,
arg=0x7ffff7f81050, kw=0x0) at Python/ceval.c:3881
#20 0x00007ffff7a8b51f in methoddescr_call (descr=<value optimized out>,
args=0x7ffff7f81050, kwds=0x0)
at Objects/descrobject.c:246
#21 0x00007ffff7a77539 in PyObject_Call (func=0x138e950,
arg=0x7ffff7e9c050, kw=0x0) at Objects/abstract.c:2529
#22 0x00007ffff7b05efe in do_call (f=<value optimized out>,
throwflag=<value optimized out>) at Python/ceval.c:4230
#23 call_function (f=<value optimized out>, throwflag=<value optimized
out>) at Python/ceval.c:4035
#24 PyEval_EvalFrameEx (f=<value optimized out>, throwflag=<value
optimized out>) at Python/ceval.c:2665
#25 0x00007ffff7b07b65 in PyEval_EvalCodeEx (co=0x1159e30, globals=<value
optimized out>, locals=<value optimized out>,
args=<value optimized out>, argcount=3, kws=0x0, kwcount=0, defs=0x0,
defcount=0, closure=0x0) at Python/ceval.c:3252
#26 0x00007ffff7a99a97 in function_call (func=0x115d5f0, arg=0xfadeb0,
kw=0x0) at Objects/funcobject.c:526
#27 0x00007ffff7a77539 in PyObject_Call (func=0x115d5f0, arg=0xfadeb0,
kw=0x0) at Objects/abstract.c:2529
#28 0x00007ffff7a77cca in PyObject_CallFunctionObjArgs
(callable=0x115d5f0) at Objects/abstract.c:2760
#29 0x00007ffff7ac8a8e in slot_tp_descr_get (self=0x13179d0,
obj=0x4aea500, type=0x19e91f0) at Objects/typeobject.c:5621
#30 0x00007ffff7aae433 in _PyObject_GenericGetAttrWithDict (obj=0x4aea500,
name=0x13c5a78, dict=0x5068fb0) at Objects/object.c:1432
#31 0x00007ffff7aae4d1 in PyObject_GenericGetAttr (obj=<value optimized
out>, name=<value optimized out>) at Objects/object.c:1454
#32 0x00007fffe434ed62 in
__pyx_tp_getattro_4sage_9structure_6parent_Parent (o=0x4aea500,
n=0x13c5a78)
at sage/structure/parent.c:18702
#33 0x00007ffff7aad8f4 in PyObject_GetAttr (v=0x4aea500, name=<value
optimized out>) at Objects/object.c:1189
#34 0x00007ffff7afdbab in builtin_hasattr (self=<value optimized out>,
args=<value optimized out>) at Python/bltinmodule.c:885
#35 0x00007ffff7aac1a0 in PyCFunction_Call (func=0x7ffff7fae3b0,
arg=0x503d680, kw=<value optimized out>)
at Objects/methodobject.c:81
#36 0x00007ffff7b05ba3 in call_function (f=<value optimized out>,
throwflag=<value optimized out>) at Python/ceval.c:4012
#37 PyEval_EvalFrameEx (f=<value optimized out>, throwflag=<value
optimized out>) at Python/ceval.c:2665
#38 0x00007ffff7b05cfa in fast_function (f=<value optimized out>,
throwflag=<value optimized out>) at Python/ceval.c:4098
#39 call_function (f=<value optimized out>, throwflag=<value optimized
out>) at Python/ceval.c:4033
#40 PyEval_EvalFrameEx (f=<value optimized out>, throwflag=<value
optimized out>) at Python/ceval.c:2665
#41 0x00007ffff7b07b65 in PyEval_EvalCodeEx (co=0x1159e30, globals=<value
optimized out>, locals=<value optimized out>,
args=<value optimized out>, argcount=3, kws=0x0, kwcount=0, defs=0x0,
defcount=0, closure=0x0) at Python/ceval.c:3252
#42 0x00007ffff7a99a97 in function_call (func=0x115d5f0, arg=0xfadbe0,
kw=0x0) at Objects/funcobject.c:526
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9958#comment:19>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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