#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):
Replying to [comment:79 malb]:
> Simon, {{{configure}}} is generated from {{{configure.in}}} using
{{{autoconf}}}. However, Singular requires a special autoconf version (I
think it is a particularly old one) which makes fixing things in its
configure script tricky. I think this should go on [libsingular-devel].
Hans can help, I think.
I am not subscribed to libsingular-devel. Can you provide a link?
FYI:
I think this ticket has two purposes.
1. Create a Singular spkg that builds both on linux and osx and replaces
omalloc by malloc, so that it is easier to track down memory corruptions
in Singular that became apparent by #715 and friends. It is just a tool to
analyse things - in fact, it wouldn't even yield a working Singular
executable.
2. The study of memory corruptions should help to fix them - and the
fixes should not only be upstream, but should be backported to a new patch
level of our Singular 3-1-5 spkg.
The problem with src/omalloc/configure ''only'' concerns purpose 1. Hence,
if directly editing src/omalloc/configure is dirty but works, then I
wouldn't mind to do it, just so that it builds on osx.
Fortunately, the fixes in purpose 2. would probably not involve the
configuration scripts.
The purpose of this ticket is to create a singular spkg that replaces
omalloc with malloc that works on linux and osx. It is not necessarily
supposed to yield a working Singular executable. The spkg shall be applied
to help analyse the Heisenbugs from #715 and friends.
In particular, the primary purpose is ''not'' to provide a new standard
singular spkg. Hence, for now, I guess I should just directly change
src/omalloc/configure, rather than learning how the non-standard autoconf
works.
The secondary purpose is to get certain
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13731#comment:80>
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