#7597: segfault in libsingular
-----------------------------------+----------------------------------------
Reporter: was | Owner: malb
Type: defect | Status: new
Priority: major | Milestone: sage-4.3
Component: commutative algebra | Keywords:
Work_issues: | Author:
Upstream: N/A | Reviewer:
Merged: |
-----------------------------------+----------------------------------------
{{{
F2 = GF(2)
F.<x> = GF(2^8)
R4.<a,b> = PolynomialRing(F)
R.<u,v> = PolynomialRing(F2);
def foo(P, X):
return (P(0,0).polynomial()[0])*X
def bar(X):
P = a
foo(P,X)
return P(a,b)
bar(u)
}}}
BOOM!
{{{
Backtrace from sage 4.1.1, from Mandriva 2010.
Program received signal SIGSEGV, Segmentation fault.
0x00007feb8f08ad04 in naNormalize () from /usr/lib64/libsingular.so
Missing debug package(s), you should install: python-
debug-2.6.4-1mdv2010.0.x86_64
(gdb) bt
#0 0x00007feb8f08ad04 in naNormalize () from /usr/lib64/libsingular.so
#1 0x00007feb8f0b5931 in p_Normalize () from /usr/lib64/libsingular.so
#2 0x00007feb8f4806ed in ?? () from usr/lib64/python2.6/site-packages/
sage/rings/polynomial/multi_polynomial_libsingular.so
#3 0x00007feb8f4aa773 in ?? ()
from /usr/lib64/python2.6/site-packages/sage/rings/polynomial/
multi_polynomial_libsingular.so
#4 0x00007feba7829023 in PyObject_Call () from /usr/lib64/
libpython2.6.so.1.0
#5 0x00007feba78ba312 in PyEval_EvalFrameEx () from /usr/lib64/
libpython2.6.so.1.0
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7597>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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