#8756: random segfault in planarity.pyx test
----------------------------+-----------------------------------------------
Reporter: was | Owner: jason, ncohen, rlm
Type: defect | Status: new
Priority: blocker | Milestone: sage-4.4
Component: graph theory | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
----------------------------+-----------------------------------------------
{{{
wst...@ubuntu32:/tmp/wstein/farm/sage-4.4.rc0$ grep "long"
"devel/sage/sage/graphs/planarity.pyx"
sage: import networkx.generators.atlas # long time
sage: atlas_graphs = [Graph(i) for i in
networkx.generators.atlas.graph_atlas_g()] # long time
sage: a = [i for i in [1..1252] if atlas_graphs[i].is_planar()] #
long time
sage: b = [i for i in [1..1252] if atlas_graphs[i].is_planar()] #
long time
sage: a == b # long time
wst...@ubuntu32:/tmp/wstein/farm/sage-4.4.rc0$ grep "long"
"devel/sage/sage/graphs/planarity.pyx" | ./sage
----------------------------------------------------------------------
| Sage Version 4.4.rc0, Release Date: 2010-04-23 |
| Type notebook() for the GUI, and license() for information. |
----------------------------------------------------------------------
**********************************************************************
* *
* Warning: this is a prerelease version, and it may be unstable. *
* *
**********************************************************************
------------------------------------------------------------
Unhandled SIGSEGV: A segmentation fault occured in Sage.
This probably occured because a *compiled* component
of Sage has a bug in it (typically accessing invalid memory)
or is not properly wrapped with _sig_on, _sig_off.
You might want to run Sage under gdb with 'sage -gdb' to debug this.
Sage will now terminate (sorry).
------------------------------------------------------------
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8756>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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