#13731: Fix libsingular memory management
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Reporter: nbruin |
Owner: rlm
Type: defect |
Status: new
Priority: major |
Milestone: sage-5.6
Component: memleak |
Resolution:
Keywords: | Work
issues:
Report Upstream: Reported upstream. Developers acknowledge bug. |
Reviewers:
Authors: | Merged
in:
Dependencies: |
Stopgaps:
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Comment (by SimonKing):
I have backported Singular changeset 15435.
When I put attachment:sage_trac_13731.patch and
attachment:singular_15435.patch into the spkg's patches/ directory and
apply the change to spkg-install mentioned in comment:56, then I get
{{{
simon@linux-sqwp:~/SAGE/debug/sage-5.5.rc0> export MALLOC_CHECK_=3
simon@linux-sqwp:~/SAGE/debug/sage-5.5.rc0> ./sage
...
sage: A.<x,y> = FreeAlgebra(QQ, 2)
sage: P.<x,y> = A.g_algebra({y*x:-x*y})
sage: x._mul_(y)
x*y
}}}
So, indeed the original problem got fixed upstream.
Plans:
* My suggestion is to put the second patch (the backported fix) into our
standard Singular spkg.
* We should of course follow the original plan and see whether we can
find further sloppy allocations in Singular, so that #715 and friends can
be made work in a reliable way.
* Can someone tell me how to tell autoconf that it shall create a
configure script that tells the preprocessor that we are on Darwin and
hence must include malloc/malloc.h in place of malloc.h?
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13731#comment:66>
Sage <http://www.sagemath.org>
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