(gdb) bt
#0  active_edges (polygon=0x7fffe654ad50, top=31526, left=0x7fffd0263230) at cairo-polygon-intersect.c:1235
#1  intersection_sweep (polygon=0x7fffe654ad50, num_events=<optimized out>, start_events=<optimized out>) at cairo-polygon-intersect.c:1271
#2  _cairo_polygon_intersect (a=a@entry=0x7fffe654ad50, winding_a=winding_a@entry=0, b=b@entry=0x7fffe654a900, winding_b=<optimized out>)
    at cairo-polygon-intersect.c:1466
#3  0x00007ffff61ce51b in clip_and_composite_polygon (antialias=CAIRO_ANTIALIAS_DEFAULT, fill_rule=CAIRO_FILL_RULE_WINDING, polygon=0x7fffe654ad50, 
    extents=0x7fffe654b180, compositor=0x7ffff6465020 <spans.11803>) at cairo-spans-compositor.c:861
#4  clip_and_composite_polygon (compositor=0x7ffff6465020 <spans.11803>, extents=0x7fffe654b180, polygon=0x7fffe654ad50, fill_rule=
    CAIRO_FILL_RULE_WINDING, antialias=CAIRO_ANTIALIAS_DEFAULT) at cairo-spans-compositor.c:819
#5  0x00007ffff61cef7f in _cairo_spans_compositor_stroke (_compositor=0x7ffff6465020 <spans.11803>, extents=0x7fffe654b180, path=<optimized out>, 
    style=0x7fffe654b570, ctm=0x7fffd0249a00, ctm_inverse=0x7fffd0249a30, tolerance=0.10000000000000001, antialias=CAIRO_ANTIALIAS_DEFAULT)
    at cairo-spans-compositor.c:985
#6  0x00007ffff6192d4e in _cairo_compositor_stroke (compositor=0x7ffff6465020 <spans.11803>, surface=0x7fffd010c310, op=<optimized out>, 
    source=<optimized out>, path=0xb28798, style=0x7fffe654b570, ctm=0x7fffd0249a00, ctm_inverse=ctm_inverse@entry=0x7fffd0249a30, tolerance=
    0.10000000000000001, antialias=antialias@entry=CAIRO_ANTIALIAS_DEFAULT, clip=clip@entry=0xcb3600) at cairo-compositor.c:153
#7  0x00007ffff61a2ee3 in _cairo_image_surface_stroke (abstract_surface=<optimized out>, op=<optimized out>, source=<optimized out>, 
    path=<optimized out>, style=<optimized out>, ctm=<optimized out>, ctm_inverse=0x7fffd0249a30, tolerance=<optimized out>, antialias=
    CAIRO_ANTIALIAS_DEFAULT, clip=0xcb3600) at cairo-image-surface.c:952
#8  0x00007ffff61d216e in _cairo_surface_stroke (clip=0xcb3600, antialias=CAIRO_ANTIALIAS_DEFAULT, tolerance=0.10000000000000001, ctm_inverse=
    0x7fffd0249a30, ctm=0x7fffd0249a00, stroke_style=0x7fffe654b570, path=0xb28798, source=0x7fffe654b5a0, op=CAIRO_OPERATOR_OVER, surface=
    0x7fffd010c310) at cairo-surface.c:2043
#9  _cairo_surface_stroke (surface=0x7fffd010c310, op=CAIRO_OPERATOR_OVER, source=0x7fffe654b5a0, path=0xb28798, stroke_style=0x7fffe654b570, ctm=
    0x7fffd0249a00, ctm_inverse=0x7fffd0249a30, tolerance=0.10000000000000001, antialias=CAIRO_ANTIALIAS_DEFAULT, clip=0xcb3600)
    at cairo-surface.c:2014
#10 0x00007ffff6197c54 in _cairo_gstate_stroke (gstate=0x7fffd0249910, path=0xb28798) at cairo-gstate.c:1171
#11 0x00007ffff619a5f2 in _cairo_gstate_stroke (gstate=<optimized out>, path=path@entry=0xb28798) at cairo-gstate.c:1181
#12 0x00007ffff6194804 in _cairo_default_context_stroke (abstract_cr=0xb28430) at cairo-default-context.c:965
#13 0x00007ffff618dc55 in INT_cairo_stroke (cr=0xb28430) at cairo.c:2146
#14 0x00007fffe590b601 in CairoOutputDev::stroke (this=0x7fffd005a400, state=0x7fffd015b970) at CairoOutputDev.cc:752
#15 0x00007fffe5587df3 in Gfx::opStroke (this=0x7fffd024b110, args=<optimized out>, numArgs=<optimized out>) at Gfx.cc:1800
#16 0x00007fffe5583854 in Gfx::go (this=this@entry=0x7fffd024b110, topLevel=topLevel@entry=true) at Gfx.cc:716
#17 0x00007fffe5583cc0 in Gfx::display (this=0x7fffd024b110, obj=<optimized out>, topLevel=true) at Gfx.cc:682
#18 0x00007fffe55c3dd4 in Page::displaySlice (this=0x7fffd0044690, out=0x7fffd005a400, hDPI=<optimized out>, vDPI=<optimized out>, rotate=0, 
    useMediaBox=16, crop=<optimized out>, sliceX=-1, sliceY=-1, sliceW=-1, sliceH=-1, printing=false, abortCheckCbk=0x0, abortCheckCbkData=0x0, 
    annotDisplayDecideCbk=0x0, annotDisplayDecideCbkData=0x0) at Page.cc:519
#19 0x00007fffe58fff99 in _poppler_page_render (page=0x7fffd0261980, cairo=0xb28430, printing=<optimized out>, print_flags=<optimized out>)
    at poppler-page.cc:358
#20 0x00007fffe5b44aa0 in pdf_page_render (page=page@entry=0x7fffd0261980, width=width@entry=100, height=height@entry=141, rc=rc@entry=0x7fffd0001470)
    at ev-poppler.cc:359
#21 0x00007fffe5b45132 in make_thumbnail_for_page (height=141, width=100, rc=0x7fffd0001470, poppler_page=0x7fffd0261980) at ev-poppler.cc:405
#22 pdf_document_get_thumbnail (document=<optimized out>, rc=0x7fffd0001470) at ev-poppler.cc:465
#23 0x00007ffff75580b9 in ?? () from /usr/lib64/libevview3.so.3
#24 0x00007ffff7559232 in ?? () from /usr/lib64/libevview3.so.3
#25 0x00007ffff53e50e5 in ?? () from /usr/lib64/libglib-2.0.so.0
#26 0x00007ffff4e6ce0e in start_thread () from /lib64/libpthread.so.0
#27 0x00007ffff4ba42cd in clone () from /lib64/libc.so.6