#6163: pynac -- segfault probably caused by cmp somehow and using intervals
----------------------+-----------------------------------------------------
Reporter: was | Owner: burcin
Type: defect | Status: new
Priority: major | Milestone: sage-4.0.1
Component: calculus | Keywords:
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This segfaults Sage-4.0:
{{{
sage: theta1,theta2=var('theta1,theta2'); theta1.subs(theta1=1,theta2=0)
}}}
{{{
wst...@sage:~/build/sage-4.0.rc1$ ./sage -gdb
----------------------------------------------------------------------
| Sage Version 4.0.rc1, Release Date: 2009-05-28 |
| Type notebook() for the GUI, and license() for information. |
----------------------------------------------------------------------
/scratch/wstein/build/sage-4.0.rc1/local/bin/sage-ipython
GNU gdb 6.8-debian
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
<http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu"...
[Thread debugging using libthread_db enabled]
Python 2.5.4 (r254:67916, May 29 2009, 07:08:12)
[GCC 4.2.4 (Ubuntu 4.2.4-1ubuntu3)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
[New Thread 0x7fe5414a06e0 (LWP 25611)]
sage: theta1,theta2=var('theta1,theta2'); theta1.subs(theta1=1,theta2=0)
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fe5414a06e0 (LWP 25611)]
import_submodule (mod=0xbbcde0, subname=0x7fff48cb9fbb "sage",
fullname=0x7fff48cb9fb0 "sage.rings.sage") at Python/import.c:2360
2360 Python/import.c: No such file or directory.
in Python/import.c
(gdb) bt
#0 import_submodule (mod=0xbbcde0, subname=0x7fff48cb9fbb "sage",
fullname=0x7fff48cb9fb0 "sage.rings.sage") at Python/import.c:2360
#1 0x00000000004a1a1b in load_next (mod=0xbbcde0, altmod=0x72bdc0,
p_name=<value optimized out>, buf=0x7fff48cb9fb0 "sage.rings.sage",
p_buflen=0x7fff48cb9fa8) at Python/import.c:2220
#2 0x00000000004a1c5a in import_module_level (name=0xb0b679
"rings.qqbar", globals=0x75a010, locals=<value optimized out>,
fromlist=0x4577998, level=<value optimized out>) at
Python/import.c:2001
#3 0x00000000004a2105 in PyImport_ImportModuleLevel (name=0xb0b674
"sage.rings.qqbar", globals=0x1287f80, locals=0x898400,
fromlist=0x4577998, level=-1) at Python/import.c:2072
#4 0x0000000000481849 in builtin___import__ (self=<value optimized out>,
args=<value optimized out>, kwds=<value optimized out>)
at Python/bltinmodule.c:47
#5 0x000000000041abbd in PyObject_CallFunctionObjArgs
(callable=0x7fe54146d5f0) at Objects/abstract.c:1861
#6 0x00007fe52d05bac8 in __Pyx_Import (name=0xb0b650,
from_list=0x4577998) at sage/rings/real_mpfi.c:20944
#7 0x00007fe52d07dfcf in
__pyx_pf_4sage_5rings_9real_mpfi_24RealIntervalFieldElement___init__
(__pyx_v_self=0x26320d8,
__pyx_args=<value optimized out>, __pyx_kwds=<value optimized out>) at
sage/rings/real_mpfi.c:6654
#8 0x000000000045cf81 in type_call (type=0x7fe52d29ed60,
args=0x7fe5413aaf00, kwds=0x0) at Objects/typeobject.c:436
#9 0x0000000000417eb3 in PyObject_Call (func=0xbbcde0,
arg=0x7fff48cb9fbb, kw=0x7fff48cb9fb0) at Objects/abstract.c:1861
#10 0x00007fe52d06e47e in
__pyx_pf_4sage_5rings_9real_mpfi_23RealIntervalField_class___call__
(__pyx_v_self=0x120f450,
__pyx_args=<value optimized out>, __pyx_kwds=0x7fe5413aaf00) at
sage/rings/real_mpfi.c:4323
#11 0x0000000000417eb3 in PyObject_Call (func=0xbbcde0,
arg=0x7fff48cb9fbb, kw=0x7fff48cb9fb0) at Objects/abstract.c:1861
#12 0x00007fe52b7c44ec in
__pyx_pf_4sage_5rings_16complex_interval_27ComplexIntervalFieldElement___init__
(__pyx_v_self=<value optimized out>,
__pyx_args=<value optimized out>, __pyx_kwds=<value optimized out>) at
sage/rings/complex_interval.c:3059
#13 0x000000000045cf81 in type_call (type=0x7fe52b9d3ac0,
args=0x7fe5413aaf50, kwds=0x0) at Objects/typeobject.c:436
#14 0x0000000000417eb3 in PyObject_Call (func=0xbbcde0,
arg=0x7fff48cb9fbb, kw=0x7fff48cb9fb0) at Objects/abstract.c:1861
#15 0x0000000000486592 in PyEval_EvalFrameEx (f=0x18683a0,
throwflag=<value optimized out>) at Python/ceval.c:3823
#16 0x0000000000489fd4 in PyEval_EvalCodeEx (co=0x1366c60, globals=<value
optimized out>, locals=<value optimized out>, args=0x4577728,
argcount=2, kws=0x0, kwcount=0, defs=0x1368b68, defcount=1,
closure=0x0) at Python/ceval.c:2875
#17 0x00000000004d4c0a in function_call (func=0x1369b90, arg=0x4577710,
kw=0x0) at Objects/funcobject.c:517
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6163>
Sage <http://sagemath.org/>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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