#7773: Test failures with Fedora 12 on intel i7 860 processor
----------------------+-----------------------------------------------------
Reporter: jsp | Owner: zimmerma
Type: defect | Status: new
Priority: minor | Milestone: sage-4.3.4
Component: build | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
----------------------+-----------------------------------------------------
Changes (by zimmerma):
* cc: robertwb (added)
Comment:
With sage-4.3.3 I've isolated the problem in
{{{finite_field_morphism.py}}} to:
{{{
----------------------------------------------------------------------
| Sage Version 4.3.3, Release Date: 2010-02-21 |
| Type notebook() for the GUI, and license() for information. |
----------------------------------------------------------------------
sage: H = Hom(GF(32, 'a'), GF(1024, 'b'))
sage: H[1]
Ring morphism:
From: Finite Field in a of size 2^5
To: Finite Field in b of size 2^10
Defn: a |--> b^7 + b^5
sage: quit
Exiting SAGE (CPU time 0m0.54s, Wall time 0m7.06s).
/usr/local/sage-4.3.3/sage/local/bin/sage-sage: line 206: 4274
Segmentation fault (core dumped) sage-ipython "$@" -i
}}}
(Note the problem does not happen during the Sage session, but only when
we quit Sage and it
tries to free the memory.) The run of {{{sage -memcheck}}} with that
session is available on
http://www.loria.fr/~zimmerma/sage-memcheck.4232.
Note: I could not try {{{sage -memcheck}}} on sage.math since it did quit
immediately, with the
following in the sage.memcheck file:
{{{
==29083== FATAL: can't open suppressions file
'/usr/local/sage/local/lib/valgrind/sage.supp'
}}}
It seems the directory {{{/usr/local/sage/local/lib/valgrind}}} is
missing, and the file
{{{sage.supp}}} in it (for my test above on my laptop, I did create an
empty sage.supp file).
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7773#comment:7>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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