.
Thread 4 (Thread 0x7f31d0aa5700 (LWP 2259)):
#0  0x00007f31e180cddd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f31e26b6fe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f31e26b70ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f31e26b7129 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f31e26dbf15 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f31e1aed182 in start_thread (arg=0x7f31d0aa5700) at pthread_create.c:312
        __res = <optimized out>
        pd = 0x7f31d0aa5700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139851930949376, -6359715350053546804, 0, 0, 139851930950080, 139851930949376, 6475720796025492684, 6475617472638588108}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#6  0x00007f31e181a12d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 3 (Thread 0x7f31da830700 (LWP 2183)):
#0  0x00007f31e180cddd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f31e26b6fe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f31e26b730a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f31e2c9e226 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#4  0x00007f31e26dbf15 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f31e1aed182 in start_thread (arg=0x7f31da830700) at pthread_create.c:312
        __res = <optimized out>
        pd = 0x7f31da830700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139852096145152, -6359715350053546804, 0, 0, 139852096145856, 139852096145152, 6475742577415263436, 6475617472638588108}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#6  0x00007f31e181a12d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 2 (Thread 0x7f31db031700 (LWP 2182)):
#0  0x00007f31e180cddd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f31e26b6fe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f31e26b70ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f31db03918d in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
No symbol table info available.
#4  0x00007f31e26dbf15 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f31e1aed182 in start_thread (arg=0x7f31db031700) at pthread_create.c:312
        __res = <optimized out>
        pd = 0x7f31db031700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139852104537856, -6359715350053546804, 0, 0, 139852104538560, 139852104537856, 6475743690348664012, 6475617472638588108}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#6  0x00007f31e181a12d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 1 (Thread 0x7f31e51caa00 (LWP 2180)):
#0  0x00007f31e26bdc13 in g_logv () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#1  0x00007f31e26bdd72 in g_log () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f31e3f722e0 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
No symbol table info available.
#3  0x00007f31e3f7aa01 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
No symbol table info available.
#4  0x00007f31e1d4154b in _XError () from /usr/lib/x86_64-linux-gnu/libX11.so.6
No symbol table info available.
#5  0x00007f31e1d3e5e7 in ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
No symbol table info available.
#6  0x00007f31e1d3e695 in ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
No symbol table info available.
#7  0x00007f31e1d3f578 in _XReply () from /usr/lib/x86_64-linux-gnu/libX11.so.6
No symbol table info available.
#8  0x00007f31e1d3b0cd in XSync () from /usr/lib/x86_64-linux-gnu/libX11.so.6
No symbol table info available.
#9  0x00007f31e362b0ef in ?? () from /usr/lib/x86_64-linux-gnu/libcairo.so.2
No symbol table info available.
#10 0x00007f31e362bd90 in ?? () from /usr/lib/x86_64-linux-gnu/libcairo.so.2
No symbol table info available.
#11 0x00007f31e3628e6a in ?? () from /usr/lib/x86_64-linux-gnu/libcairo.so.2
No symbol table info available.
#12 0x00007f31e35faeaf in ?? () from /usr/lib/x86_64-linux-gnu/libcairo.so.2
No symbol table info available.
#13 0x00007f31e35c6348 in ?? () from /usr/lib/x86_64-linux-gnu/libcairo.so.2
No symbol table info available.
#14 0x00007f31e35c6bfa in ?? () from /usr/lib/x86_64-linux-gnu/libcairo.so.2
No symbol table info available.
#15 0x00007f31e35f7c48 in ?? () from /usr/lib/x86_64-linux-gnu/libcairo.so.2
No symbol table info available.
#16 0x00007f31e35f809e in ?? () from /usr/lib/x86_64-linux-gnu/libcairo.so.2
No symbol table info available.
#17 0x00007f31e35f8116 in ?? () from /usr/lib/x86_64-linux-gnu/libcairo.so.2
No symbol table info available.
#18 0x00007f31e35b6929 in ?? () from /usr/lib/x86_64-linux-gnu/libcairo.so.2
No symbol table info available.
#19 0x00007f31e35fb30c in ?? () from /usr/lib/x86_64-linux-gnu/libcairo.so.2
No symbol table info available.
#20 0x00007f31e35bdf94 in ?? () from /usr/lib/x86_64-linux-gnu/libcairo.so.2
No symbol table info available.
#21 0x00007f31e35b18e1 in cairo_mask () from /usr/lib/x86_64-linux-gnu/libcairo.so.2
No symbol table info available.
#22 0x00007f31e35b1966 in cairo_mask_surface () from /usr/lib/x86_64-linux-gnu/libcairo.so.2
No symbol table info available.
#23 0x00007f31c7bda55f in ?? () from /usr/lib/x86_64-linux-gnu/libwnck-3.so.0
No symbol table info available.
#24 0x00007f31c7bdb91e in ?? () from /usr/lib/x86_64-linux-gnu/libwnck-3.so.0
No symbol table info available.
#25 0x00007f31c7bd15a4 in ?? () from /usr/lib/x86_64-linux-gnu/libwnck-3.so.0
No symbol table info available.
#26 0x00007f31c7bd2149 in ?? () from /usr/lib/x86_64-linux-gnu/libwnck-3.so.0
No symbol table info available.
#27 0x00007f31c7bd3395 in ?? () from /usr/lib/x86_64-linux-gnu/libwnck-3.so.0
No symbol table info available.
#28 0x00007f31c7bc6bee in ?? () from /usr/lib/x86_64-linux-gnu/libwnck-3.so.0
No symbol table info available.
#29 0x00007f31c7bc72c4 in ?? () from /usr/lib/x86_64-linux-gnu/libwnck-3.so.0
No symbol table info available.
#30 0x00007f31e26b6ce5 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#31 0x00007f31e26b7048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#32 0x00007f31e26b730a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#33 0x00007f31e4372b35 in gtk_main () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
No symbol table info available.
#34 0x00000000004224cf in main ()
No symbol table info available.