#18210: Symbolic computation of Gamma related function crashes Sage
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Reporter: VivianePons | Owner:
Type: PLEASE CHANGE | Status: new
Priority: major | Milestone: sage-6.7
Component: symbolics | Resolution:
Keywords: sd67 | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by nbruin):
This is recent because on 6.5beta1 the error doesn't occur.
It looks like some infinite recursion in ginac. Excerpt from traceback
obtained from `sage -gdb` after segv has occurred:
{{{
...
#12573 0x00007fffc8185e3d in GiNaC::mul::eval(int) const ()
from /usr/local/sage/sage-git/local/lib/libpynac.so.1
#12574 0x00007fffc80f170b in GiNaC::ex::construct_from_basic(GiNaC::basic
const&) () from /usr/local/sage/sage-git/local/lib/libpynac.so.1
#12575 0x00007fffc80acb59 in GiNaC::ex::ex(GiNaC::basic const&) ()
from /usr/local/sage/sage-git/local/lib/libpynac.so.1
#12576 0x00007fffc8185e3d in GiNaC::mul::eval(int) const ()
from /usr/local/sage/sage-git/local/lib/libpynac.so.1
#12577 0x00007fffc80f170b in GiNaC::ex::construct_from_basic(GiNaC::basic
const&) () from /usr/local/sage/sage-git/local/lib/libpynac.so.1
#12578 0x00007fffc80acb59 in GiNaC::ex::ex(GiNaC::basic const&) ()
from /usr/local/sage/sage-git/local/lib/libpynac.so.1
...
}}}
--
Ticket URL: <http://trac.sagemath.org/ticket/18210#comment:2>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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