.
Thread 1 (process 6024):
#0  0x00002b0bae873377 in ?? () from /usr/lib/libpangoft2-1.0.so.0
#1  0x00002b0bad0235fd in ?? () from /usr/lib/libpango-1.0.so.0
#2  0x00002b0bad02397d in pango_itemize_with_base_dir ()
   from /usr/lib/libpango-1.0.so.0
#3  0x00002b0bad02b033 in ?? () from /usr/lib/libpango-1.0.so.0
#4  0x00002b0bad02bbdd in ?? () from /usr/lib/libpango-1.0.so.0
#5  0x00002b0bad02cb70 in pango_layout_get_pixel_extents ()
   from /usr/lib/libpango-1.0.so.0
#6  0x00002b0bad02cbde in pango_layout_get_pixel_size ()
   from /usr/lib/libpango-1.0.so.0
#7  0x000000000041fc28 in ?? ()
#8  0x000000000041fdab in ?? ()
#9  0x0000000000420228 in ?? ()
#10 0x0000000000420786 in ?? ()
#11 0x00002b0baa5f835b in pkgAcquire::Run ()
   from /usr/lib/libapt-pkg-libc6.4-6.so.3.52
#12 0x000000000046d0c1 in ?? ()
#13 0x0000000000441938 in ?? ()
#14 0x000000000041593b in ?? ()
#15 0x00002b0baf3e78e4 in __libc_start_main () from /lib/libc.so.6
#16 0x0000000000413ae9 in ?? ()
#17 0x00007fff0072b0f8 in ?? ()
#18 0x0000000000000000 in ?? ()