Thread 1 (Thread 0xb6d12740 (LWP 7998)):
#0  0xb6f44613 in strlen () from /lib/tls/i686/cmov/libc.so.6
#1  0xb6f44345 in strdup () from /lib/tls/i686/cmov/libc.so.6
#2  0xb7517ac3 in _cairo_truetype_subset_init (truetype_subset=0xbfaae488, font_subset=0xbfaae590) at cairo-truetype-subset.c:1070
#3  0xb7539ab8 in _cairo_pdf_surface_emit_unscaled_font_subset (font_subset=0xbfaae590, closure=0xa136a08) at cairo-pdf-surface.c:4156
#4  0xb7514d27 in _cairo_scaled_font_subsets_foreach_internal (font_subsets=<value optimized out>, 
    font_subset_callback=0xb7539800 <_cairo_pdf_surface_emit_unscaled_font_subset>, closure=0xa136a08, type=CAIRO_SUBSETS_FOREACH_UNSCALED)
    at cairo-scaled-font-subsets.c:589
#5  0xb753a68f in _cairo_pdf_surface_finish (abstract_surface=0xa136a08) at cairo-pdf-surface.c:4622
#6  0xb750326e in *INT_cairo_surface_finish (surface=0xa136a08) at cairo-surface.c:652
#7  0xb74ec426 in _cairo_paginated_surface_finish (abstract_surface=0xa148228) at cairo-paginated-surface.c:168
#8  0xb750326e in *INT_cairo_surface_finish (surface=0xa148228) at cairo-surface.c:652
#9  0xb7e3311e in unix_end_run (op=0x9eb7678, wait=0, cancelled=0) at gtkprintoperation-unix.c:334
#10 0xb7cb19a2 in print_pages_idle (user_data=0xa0b3f20) at gtkprintoperation.c:2787
#11 0xb76ccf5b in gdk_threads_dispatch (data=0xa0a4620) at gdk.c:506
#12 0xb71e7611 in g_idle_dispatch (source=0x9efda78, callback=0x48, user_data=0xa0a4620) at gmain.c:4065
#13 0xb71e9448 in IA__g_main_context_dispatch (context=0x9c41458) at gmain.c:1960
#14 0xb71ecca3 in g_main_context_iterate (context=0x9c41458, block=1, dispatch=1, self=0x9c295a0) at gmain.c:2591
#15 0xb71ed17a in IA__g_main_loop_run (loop=0x9c2b688) at gmain.c:2799
#16 0xb7c706b9 in IA__gtk_main () at gtkmain.c:1205
#17 0x08080ffa in main (argc=762016871, argv=0x632d6d69) at main.c:497