Would you send the backtrace and line number where the error occurs. 

I wonder if filling in a curved area is overflowing the control point array?  
I'm grasping at straws. 



> On Feb 25, 2015, at 8:40 AM, Phil Rosenberg <p.d.rosenb...@gmail.com> wrote:
> 
> Hi Jim
> I doubt there are very many control points example 13 is just a simple
> pie chart. The crash is immediate, not on a redraw. I wondered if it
> could be related to overflowing some buffer when writing to the
> plbuffer as this writing occurs during plP_fill - it only happens when
> a hatching is used as the fill pattern so I assume there is something
> specific happening related to the fill pattern.
> 
> Another possibility would be that the call to set the fill pattern
> corrupts the memory and it just happens to be in plP_fill that this
> corrupted memry finally causes a segfault - perhaps this is the next
> buffer write or memory allocation after the corruption or something.
> 
> Phil

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