Memory Usage explosion (16gb) with not-so-large (248k) SVG

[luispedro]

On Inkscape 0.91 r13725 (ubuntu packaged), the attached SVG (which was originally created with matplotlib) causes inkscape to explode in memory usage, eventually thrashing so much that I have to kill the process (I have seen it go up to 16gb). If I limit inkscape to only 6GB, then it will eventually just crash.

[su_v (suv-lp)]

Thank you for taking the time to file this report.

Based on the default style in the provided SVG test case:

  <defs
     id="defs4">
    <style
       type="text/css"
       id="style6">
*{stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:100000;}
  </style>
  </defs>

this is a known issue reported before and already tracked in
* Bug #1533058 “Fills >8G of RAM opening a small SVG file”
  https://bugs.launchpad.net/inkscape/+bug/1533058

The trigger is the very high miter limit set by latest matplotlib as_default_ style for all stroked paths.