#0  0xb731ebfb in strlen () from /lib/tls/i686/cmov/libc.so.6
#1  0xb767886e in g_strdup () from /usr/lib/libglib-2.0.so.0
#2  0xb7715a65 in pango_font_description_copy ()
   from /usr/lib/libpango-1.0.so.0
#3  0xb7722493 in pango_layout_set_font_description ()
   from /usr/lib/libpango-1.0.so.0
#4  0x080648e8 in ?? ()
#5  0x08064ac6 in ?? ()
#6  0x0806571d in ?? ()
#7  0x08065c82 in ?? ()
#8  0xb7ebf4b9 in pkgAcquire::Run ()
   from /usr/lib/libapt-pkg-libc6.4-6.so.3.53
#9  0x080b7231 in ?? ()
#10 0x08088836 in ?? ()
#11 0xb76e39d9 in g_cclosure_marshal_VOID__VOID ()
   from /usr/lib/libgobject-2.0.so.0
#12 0xb76d662b in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#13 0xb76e7103 in ?? () from /usr/lib/libgobject-2.0.so.0
#14 0x0831f718 in ?? ()
#15 0x00000000 in ?? ()