#8 Velvet core dumps on amd64

[Anonymous]

I was just remembering old times with wrench.flt and when I tried to plot stresses I got this:
___
%uname -a
FreeBSD kakumen.cable.net.co 7.0-RELEASE-p3 FreeBSD 7.0-RELEASE-p3 #0: Fri Aug 8 16:42:27 COT 2008 root@kakumen.cable.net.co:/usr/src/sys/amd64/compile/GENERIC amd64

#0 0x0000000000437c09 in ComputeNaturalSizes ()
[New Thread 0x802901120 (LWP 100120)]
(gdb) bt
#0 0x0000000000437c09 in ComputeNaturalSizes ()
#1 0x0000000000438301 in LayoutGetNaturalSize ()
#2 0x0000000000438826 in LayoutLayout ()
#3 0x000000080122a0b3 in CallChangeManaged () from /usr/local/lib/libXt.so.6
#4 0x000000080122bfd8 in XtRealizeWidget () from /usr/local/lib/libXt.so.6
#5 0x0000000000425a2b in CreateOpenGLShell ()
#6 0x000000000042bc5c in SetupStresses ()
#7 0x00000008012160b8 in XtCallCallbacks () from /usr/local/lib/libXt.so.6
#8 0x000000080124b5d6 in HandleActions () from /usr/local/lib/libXt.so.6
#9 0x000000080124b9e3 in HandleSimpleState () from /usr/local/lib/libXt.so.6
#10 0x000000080124c06a in _XtTranslateEvent () from /usr/local/lib/libXt.so.6
#11 0x000000080122397a in XtDispatchEventToWidget ()
from /usr/local/lib/libXt.so.6
#12 0x0000000801223f96 in _XtDefaultDispatcher ()
from /usr/local/lib/libXt.so.6
#13 0x00000008012230b8 in XtDispatchEvent () from /usr/local/lib/libXt.so.6
#14 0x0000000801223243 in XtAppMainLoop () from /usr/local/lib/libXt.so.6
#15 0x0000000000431a13 in main ()