Something

Thread 1: status = VgTs_Runnable
==12982==    at 0x3414AB04: free (vg_replace_malloc.c:152)
==12982==    by 0x83E130A: MEM_freeN (mallocn.c:374)
==12982==    by 0x83D613C: NURBS_Generate::NURBSBasis(int, double, int, double*, double*, double*, bool) (NURBS_Generate.cpp:639)
==12982==    by 0x83D868C: NURBS_Generate::Surface(Object_NURBS*, int, int, Point3d*, double*, int, bool, bool) (NURBS_Generate.cpp:98)
==12982==    by 0x83D8735: NURBS_Generate::Surface(Object_NURBS*) (NURBS_Generate.cpp:7)
==12982==    by 0x83D5A6F: NRB_GenerateSurface (libNurbana.cpp:399)
==12982==    by 0x83576F1: generateNurb (nurbs.c:255)
==12982==    by 0x832C58C: makeDispListSurf (displist.c:1623)
==12982==    by 0x832D172: makeDispListCurveTypes (displist.c:1652)
==12982==    by 0x835B924: object_handle_update (object.c:1759)
==12982==    by 0x80BF49B: drawview3dspace (drawview.c:2152)
==12982==    by 0x8168081: scrarea_do_windraw (spacetypes.c:113)