dolfin team mailing list archive

[Dag Lindbo <dag@xxxxxxxxxx>]

> > IntersectionDetector::~IntersectionDetector()
> > {
> >   // FIXME: Should delete tree here but need to include GNode properly.
> >   // FIXME: (warning: invalid use of incomplete type 'struct _GNode')
> >
> >   //if (tree)
> >   //  delete (GNode*) tree;
> > }
> >
> > I commented it out since I couldn't get it to compile. (Didn't have
> > time before the release to figure out what goes wrong.)
> >
> > Note that bugs should be assigned to dolfin-dev@xxxxxxxxxx, not
> > dolfin@xxxxxxxxxx (which is an alias for /dev/null).
>
> Well... this is not the entire story. The leaves (pointers to bounding 
> boxes) of the tree must be explicitly freed as well: 
> gts_bb_tree_destroy(tree, 1). This still leaves some kbytes reachable 
> (but not freed though).

After a bit of poking around, it seems like the glib slice allocator is 
not finalizing and freeing all its memory. Setting the environment 
variable G_SLICE=always-malloc reduces the problem so that valgrind 
reports "still reachable: 1,816 bytes" independent of the mesh size. Has 
anyone seen this kind of issue with GSList before? The Glib docs do not 
indicate a way to purge the memory held by the memory manager.

   Dag