#9583: Unhandled SIGSEGV with 4.5.2.alpha0 on t2
-----------------------+----------------------------------------------------
Reporter: mpatel | Owner: drkirkby
Type: defect | Status: new
Priority: blocker | Milestone: sage-4.5.2
Component: solaris | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
-----------------------+----------------------------------------------------
Comment(by drkirkby):
I got the same problem on a SPARC of mine, but managed to quite easily
find the problem running
{{{
sage -gdb
}}}
Here we can see what line causes the problem, though I expect it is auto
generated by Cython, so knowing which line of python it is might be more
difficult.
{{{
drkir...@redstart:~/32/sage-4.5.2.alpha0$ ./sage -gdb
----------------------------------------------------------------------
| Sage Version 4.5.2.alpha0, Release Date: 2010-07-21 |
| Type notebook() for the GUI, and license() for information. |
----------------------------------------------------------------------
**********************************************************************
* *
* Warning: this is a prerelease version, and it may be unstable. *
* *
**********************************************************************
/export/home/drkirkby/32/sage-4.5.2.alpha0/local/bin/sage-ipython
GNU gdb (GDB) 7.0.1
Copyright (C) 2009 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 "sparc-sun-solaris2.10".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from
/export/home/drkirkby/32/sage-4.5.2.alpha0/local/bin/python...done.
[Thread debugging using libthread_db enabled]
[New Thread 1 (LWP 1)]
Python 2.6.4 (r264:75706, Jul 23 2010, 17:40:08)
[GCC 4.4.3] on sunos5
Type "help", "copyright", "credits" or "license" for more information.
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1 (LWP 1)]
0xfa660a74 in
__pyx_pf_4sage_4libs_8singular_6option_27LibSingularOptions_abstract_load
(__pyx_v_self=0x1f2b8f0,
__pyx_args=0x1e58310, __pyx_kwds=<value optimized out>) at
sage/libs/singular/option.cpp:1800
1800 Kstd1_mu = __pyx_t_5;
Current language: auto
The current source language is "auto; currently c++".
(gdb) br
__pyx_pf_4sage_4libs_8singular_6option_27LibSingularOptions_abstract_load
Breakpoint 1 at 0xfa6606d8: file sage/libs/singular/option.cpp, line 1679.
(gdb) run
The program being debugged has been started already.
Start it from the beginning? (y or n) y
Starting program:
/export/home/drkirkby/32/sage-4.5.2.alpha0/local/bin/python -i
[Thread debugging using libthread_db enabled]
[New Thread 1 (LWP 1)]
Python 2.6.4 (r264:75706, Jul 23 2010, 17:40:08)
[GCC 4.4.3] on sunos5
Type "help", "copyright", "credits" or "license" for more information.
[Switching to Thread 1 (LWP 1)]
Breakpoint 1,
__pyx_pf_4sage_4libs_8singular_6option_27LibSingularOptions_abstract_load
(__pyx_v_self=0x1f2b8f0,
__pyx_args=0x1e58310, __pyx_kwds=0x0) at
sage/libs/singular/option.cpp:1679
1679 if (unlikely(__pyx_kwds)) {
(gdb) s
1669 static PyObject
*__pyx_pf_4sage_4libs_8singular_6option_27LibSingularOptions_abstract_load(PyObject
*__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
(gdb) n
0xfa6532d8 in call_frame_dummy ()
from /export/home/drkirkby/32/sage-4.5.2.alpha0/local/lib/python2.6
/site-packages/sage/libs/singular/option.so
(gdb) n
Single stepping until exit from function call_frame_dummy,
which has no line number information.
__pyx_pf_4sage_4libs_8singular_6option_27LibSingularOptions_abstract_load
(__pyx_v_self=0x1f2b8f0, __pyx_args=0x1e58310,
__pyx_kwds=0x0) at sage/libs/singular/option.cpp:1679
1679 if (unlikely(__pyx_kwds)) {
(gdb) n
1701 switch (PyTuple_GET_SIZE(__pyx_args)) {
(gdb) n
1702 case 1: __pyx_v_value = PyTuple_GET_ITEM(__pyx_args, 0);
(gdb) n
1714 __Pyx_INCREF((PyObject *)__pyx_v_self);
(gdb)
1715 __Pyx_INCREF(__pyx_v_value);
(gdb)
1724 __pyx_t_1 = PyObject_RichCompare(__pyx_v_value, Py_None, Py_EQ);
if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno =
280; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
(gdb)
1715 __Pyx_INCREF(__pyx_v_value);
(gdb)
1724 __pyx_t_1 = PyObject_RichCompare(__pyx_v_value, Py_None, Py_EQ);
if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno =
280; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
(gdb)
1726 __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_t_1); if
(unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno =
280; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
(gdb)
1727 __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
(gdb)
1728 if (__pyx_t_2) {
(gdb)
1762 __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_value, 0, sizeof(long),
PyInt_FromLong); if (!__pyx_t_1) {__pyx_filename = __pyx_f[0];
__pyx_lineno = 282; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
(gdb)
1764 __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3))
{__pyx_filename = __pyx_f[0]; __pyx_lineno = 282; __pyx_clineno =
__LINE__; goto __pyx_L1_error;}
(gdb)
1769 __pyx_t_1 = PyObject_Call(((PyObject
*)((PyObject*)&PyInt_Type)), __pyx_t_3, NULL); if (unlikely(!__pyx_t_1))
{__pyx_filename = __pyx_f[0]; __pyx_lineno = 282; __pyx_clineno =
__LINE__; goto __pyx_L1_error;}
(gdb)
1766 PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_1);
(gdb)
1769 __pyx_t_1 = PyObject_Call(((PyObject
*)((PyObject*)&PyInt_Type)), __pyx_t_3, NULL); if (unlikely(!__pyx_t_1))
{__pyx_filename = __pyx_f[0]; __pyx_lineno = 282; __pyx_clineno =
__LINE__; goto __pyx_L1_error;}
(gdb)
1771 __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
(gdb)
5168 if (likely(PyInt_Check(x))) {
(gdb)
1773 __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
(gdb)
1774 (((struct
__pyx_obj_4sage_4libs_8singular_6option_LibSingularOptions_abstract
*)__pyx_v_self)->global_options[0]) = __pyx_t_4;
(gdb)
1783 __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_value, 1, sizeof(long),
PyInt_FromLong); if (!__pyx_t_1) {__pyx_filename = __pyx_f[0];
__pyx_lineno = 285; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
(gdb)
1785 __pyx_t_5 = __Pyx_PyInt_AsInt(__pyx_t_1); if
(unlikely((__pyx_t_5 == (int)-1) && PyErr_Occurred())) {__pyx_filename =
__pyx_f[0]; __pyx_lineno = 285; __pyx_clineno = __LINE__; goto
__pyx_L1_error;}
(gdb)
1786 __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
(gdb)
1787 Kstd1_deg = __pyx_t_5;
(gdb)
1796 __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_value, 2, sizeof(long),
PyInt_FromLong); if (!__pyx_t_1) {__pyx_filename = __pyx_f[0];
__pyx_lineno = 286; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
(gdb)
1798 __pyx_t_5 = __Pyx_PyInt_AsInt(__pyx_t_1); if
(unlikely((__pyx_t_5 == (int)-1) && PyErr_Occurred())) {__pyx_filename =
__pyx_f[0]; __pyx_lineno = 286; __pyx_clineno = __LINE__; goto
__pyx_L1_error;}
(gdb)
1799 __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
(gdb)
1802 __pyx_r = Py_None; __Pyx_INCREF(Py_None);
(gdb)
1800 Kstd1_mu = __pyx_t_5;
(gdb)
Program received signal SIGSEGV, Segmentation fault.
0xfa660a74 in
__pyx_pf_4sage_4libs_8singular_6option_27LibSingularOptions_abstract_load
(__pyx_v_self=0x1f2b8f0,
__pyx_args=0x1e58310, __pyx_kwds=<value optimized out>) at
sage/libs/singular/option.cpp:1800
1800 Kstd1_mu = __pyx_t_5;
(gdb)
}}}
Dave
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9583#comment:5>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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