.
Thread 4 (Thread 0x7faefffff700 (LWP 17998)):
#0  0x00007faf17b553dd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007faf1b6f85c4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007faf1b6f86cc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007faf1b6f8719 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007faf1b71d275 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007faf17e36f6e in start_thread (arg=0x7faefffff700) at pthread_create.c:311
        __res = <optimized out>
        pd = 0x7faefffff700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140389596002048, -3763933006869262125, 0, 140390118981728, 140734857920064, 4096, 3791517553915891923, 3791464747436511443}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#6  0x00007faf17b61e2d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.
.
Thread 3 (Thread 0x7faf0d279700 (LWP 17997)):
#0  0x00007faf17b553dd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007faf1b6f85c4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007faf1b6f8a2a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007faf169fd956 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#4  0x00007faf1b71d275 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007faf17e36f6e in start_thread (arg=0x7faf0d279700) at pthread_create.c:311
        __res = <optimized out>
        pd = 0x7faf0d279700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140389816702720, -3763933006869262125, 0, 140390118981728, 140389825091680, 4096, 3791406983204081875, 3791464747436511443}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#6  0x00007faf17b61e2d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.
.
Thread 2 (Thread 0x7faf0da7a700 (LWP 17996)):
#0  0x00007faf17b553dd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007faf1b6f85c4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007faf1b6f86cc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007faf0e31ba9d in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
No symbol table info available.
#4  0x00007faf1b71d275 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007faf17e36f6e in start_thread (arg=0x7faf0da7a700) at pthread_create.c:311
        __res = <optimized out>
        pd = 0x7faf0da7a700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140389825095424, -3763933006869262125, 0, 140390118981728, 140734857919696, 4096, 3791408083252580563, 3791464747436511443}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#6  0x00007faf17b61e2d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.
.
Thread 1 (Thread 0x7faf1f27ea00 (LWP 17993)):
#0  0x00007faf1d16fb8d in gtk_widget_set_sensitive () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
No symbol table info available.
#1  0x000000000097b757 in Inkscape::UI::Dialogs::colorItemHandleButtonPress(_GtkWidget*, _GdkEventButton*, void*) ()
No symbol table info available.
#2  0x00007faf1d058645 in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
No symbol table info available.
#3  0x00007faf1b9c12e8 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#4  0x00007faf1b9d375d in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#5  0x00007faf1b9daf27 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#6  0x00007faf1b9dbc22 in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#7  0x00007faf1d1685f4 in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
No symbol table info available.
#8  0x00007faf1d056df4 in gtk_propagate_event () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
No symbol table info available.
#9  0x00007faf1d0571ab in gtk_main_do_event () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
No symbol table info available.
#10 0x00007faf1ccd227c in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
No symbol table info available.
#11 0x00007faf1b6f82d6 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#12 0x00007faf1b6f8628 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#13 0x00007faf1b6f8a2a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#14 0x00007faf1d056277 in gtk_main () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
No symbol table info available.
#15 0x000000000062b3ac in sp_main_gui(int, char const**) ()
No symbol table info available.
#16 0x000000000060edcf in main ()
No symbol table info available.