.
Thread 5 (Thread 0x7f0ecfa47700 (LWP 1656)):
#0  0x00007f0ecede8866 in ?? () from /usr/lib/x86_64-linux-gnu/libjpeg.so.8
No symbol table info available.
#1  0x00007f0ecede5459 in ?? () from /usr/lib/x86_64-linux-gnu/libjpeg.so.8
No symbol table info available.
#2  0x00007f0ecede9dc2 in ?? () from /usr/lib/x86_64-linux-gnu/libjpeg.so.8
No symbol table info available.
#3  0x00007f0ecede4490 in jpeg_read_scanlines () from /usr/lib/x86_64-linux-gnu/libjpeg.so.8
No symbol table info available.
#4  0x00007f0ecf043159 in ?? () from /usr/lib/x86_64-linux-gnu/gdk-pixbuf-2.0/2.10.0/loaders/libpixbufloader-jpeg.so
No symbol table info available.
#5  0x00007f0eef8925a5 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk_pixbuf-2.0.so.0
No symbol table info available.
#6  0x00007f0eef89280c in gdk_pixbuf_new_from_file () from /usr/lib/x86_64-linux-gnu/libgdk_pixbuf-2.0.so.0
No symbol table info available.
#7  0x000000000040df34 in ?? ()
No symbol table info available.
#8  0x00007f0eef156c25 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#9  0x00007f0eee16df8e in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#10 0x00007f0eede97e1d in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
.
Thread 4 (Thread 0x7f0ee580a700 (LWP 1507)):
#0  0x00007f0eee17205e in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#1  0x00007f0eef172115 in g_cond_wait_until () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f0eef108ad1 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f0eef1575b8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f0eef156c25 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f0eee16df8e in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#6  0x00007f0eede97e1d in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
.
Thread 3 (Thread 0x7f0ee6c1d700 (LWP 1490)):
#0  0x00007f0eede8b3cd in poll () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007f0eef132394 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f0eef1327fa in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f0eefd865f6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#4  0x00007f0eef156c25 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f0eee16df8e in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#6  0x00007f0eede97e1d in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
.
Thread 2 (Thread 0x7f0ee600b700 (LWP 1503)):
#0  0x00007f0eede8b3cd in poll () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007f0eef132394 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f0eef13249c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f0ee6012a1d in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
No symbol table info available.
#4  0x00007f0eef156c25 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f0eee16df8e in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#6  0x00007f0eede97e1d in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
.
Thread 1 (Thread 0x7f0ef0f9c980 (LWP 1476)):
#0  0x00007f0eeeedf926 in lightdm_layout_get_description () from /usr/lib/liblightdm-gobject-1.so.0
No symbol table info available.
#1  0x000000000041dde8 in ?? ()
No symbol table info available.
#2  0x00007f0eef12e189 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x000000000041f7b4 in ?? ()
No symbol table info available.
#4  0x00000000004317c7 in ?? ()
No symbol table info available.
#5  0x00007f0eef3fa497 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#6  0x00007f0eef4142bc in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#7  0x00007f0eef4150c2 in g_signal_emit_by_name () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#8  0x000000000041a615 in ?? ()
No symbol table info available.
#9  0x00007f0eef3fccae in g_cclosure_marshal_VOID__DOUBLEv () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#10 0x00007f0eef3fa497 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#11 0x00007f0eef4142bc in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#12 0x00007f0eef4150c2 in g_signal_emit_by_name () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#13 0x000000000040d606 in ?? ()
No symbol table info available.
#14 0x00007f0eef132c03 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#15 0x00007f0eef1320a6 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#16 0x00007f0eef1323f8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#17 0x00007f0eef1327fa in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#18 0x00007f0ef0660505 in gtk_main () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
No symbol table info available.
#19 0x000000000042d834 in ?? ()
No symbol table info available.
#20 0x00007f0eeddbfea5 in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#21 0x000000000040d2a9 in ?? ()
No symbol table info available.