RollTopBoxBase.stl http://forum.openscad.org/file/n11572/RollTopBoxBase.stl
I'm running under Windows 7 Pro with the latest MS patches. I'm using Slic3r
v1.1.7 (64 bit) which claims to be the latest version according to its
internal update facility. The design that causes the instant crash of Slic3r
is "RollTopBoxBase.stl" which I've attached to this post. Slic3r aborts
within a second of telling it to load that STL. The error popup simply
states "slic3r has stopped working ... Windows is checking for a solution
...". This isn't a problem with the gcode output as it never got that far.

I appreciate your attention on this issue. I'm looking forward to the next
release of OpenSCAD being most feature rich and stable version to date.

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NetFabb shows 3 holes (yellow lines). (I recommend getting the Basic version
here http://www.netfabb.com/downloadcenter.php?basic=1  it's free)

http://forum.openscad.org/file/n11576/tp11262.jpg

If you share your code I can have a look.

Or if you just want a fixed stl, it is attached.
RollTopBoxBase_tp11262_fixed.stl
http://forum.openscad.org/file/n11576/RollTopBoxBase_tp11262_fixed.stl

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RollTopBoxBase.scad
http://forum.openscad.org/file/n11578/RollTopBoxBase.scad
I appreciate the mesh analysis and repair. Here's the scad source. My main
concern at this point is that this file can be output to STL and
subsequently processed into GCODE using Slic3r when the 2014.03 version of
OpenSCAD is used. There seems to be extra accommodation required when
processing using the latest development build of OpenSCAD.

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RollTopBoxBase_tp11262_M.scad
http://forum.openscad.org/file/n11583/RollTopBoxBase_tp11262_M.scad

You had a lot of co-incident faces, I tried to comment, with original
values, where I changed comething.
But there was a lot of trial/error so some may have been missed.

When you see things like the following, it generally indicates something is
wrong.

http://forum.openscad.org/file/n11583/tp11262_throwntogether.jpg
http://forum.openscad.org/file/n11583/tp11262_end_of_bar_prewiew.jpg
http://forum.openscad.org/file/n11583/tp11262_end_of_bar_wireframe.jpg
http://forum.openscad.org/file/n11583/tp11262_corner_wireframe.jpg
http://forum.openscad.org/file/n11583/tp11262_corner_preview.jpg

Particularly any purple showing in Thrown Together view
http://forum.openscad.org/file/n11583/tp11262_corner_throwntogether2.jpg
http://forum.openscad.org/file/n11583/tp11262_bar_throwntogether.jpg

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Thanks Joseph, the above is the fixed version and some pointers for John on
what to look for.

Unless specifically shown otherwise above, my contribution is in the Public Domain; To the extent possible under law, I have waived all copyright and related or neighbouring rights to this work. This work is published globally via the internet. :) Inclusion of works of previous authors is not included in the above.

The TPP is no simple “trade agreement.”  Fight it! http://www.ourfairdeal.org/

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Please follow this issue to keep track of progress: https://github.com/openscad/openscad/issues/1215

If you encounter more similar issue, please post them so we can get them tested as well.
A fix is underway..

-Marius