.
Thread 5 (Thread 0x7fa4067d1700 (LWP 4000)):
#0  0x00007fa43303e3dd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007fa4342f4454 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007fa4342f455c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007fa4342f45a9 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007fa434318cd5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007fa4324c5f6e in start_thread (arg=0x7fa4067d1700) at pthread_create.c:311
        __res = <optimized out>
        pd = 0x7fa4067d1700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140342460225280, 318700903163911025, 0, 26369360, 140733922212400, 23, -350071091293693071, -350114941442696335}, 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  0x00007fa43304ae2d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.
.
Thread 4 (Thread 0x7fa424abc700 (LWP 3993)):
#0  0x00007fa43303e3dd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007fa4342f4454 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007fa4342f48ba in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007fa432ab1776 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#4  0x00007fa434318cd5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007fa4324c5f6e in start_thread (arg=0x7fa424abc700) at pthread_create.c:311
        __res = <optimized out>
        pd = 0x7fa424abc700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140342966601472, 318700903163911025, 0, 140343238889568, 140733922210736, 4096, -350144292031931535, -350114941442696335}, 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  0x00007fa43304ae2d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.
.
Thread 3 (Thread 0x7fa42593a700 (LWP 3992)):
#0  0x00007fa43303e3dd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007fa4342f4454 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007fa4342f455c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007fa425941a9d in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
No symbol table info available.
#4  0x00007fa434318cd5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007fa4324c5f6e in start_thread (arg=0x7fa42593a700) at pthread_create.c:311
        __res = <optimized out>
        pd = 0x7fa42593a700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140342981797632, 318700903163911025, 0, 140343238889568, 140733922211088, 4096, -350141748337550479, -350114941442696335}, 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  0x00007fa43304ae2d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.
.
Thread 2 (Thread 0x7fa434e1da00 (LWP 3991)):
#0  0x00007fa43303e3dd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007fa4342f4454 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007fa4342f48ba in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007fa4339fc365 in gtk_main () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
No symbol table info available.
#4  0x000000000040ebb1 in main ()
No symbol table info available.
.
Thread 1 (Thread 0x7fa3fdac1700 (LWP 4004)):
#0  0x00007fa432f87f77 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
        resultvar = 0
        pid = 3991
        selftid = 4004
#1  0x00007fa432f8b5e8 in __GI_abort () at abort.c:90
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x7fa432f633e4, sa_sigaction = 0x7fa432f633e4}, sa_mask = {__val = {5, 140343207872925, 3, 140342312300350, 2, 140343207868628, 1, 140343207879656, 3, 140342312300324, 12, 140343207879660, 2, 140342312301136, 20, 140342312302896}}, sa_flags = 80, sa_restorer = 0x7}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007fa432fc54fb in __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x7fa4330d86a0 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:199
        ap = {{gp_offset = 40, fp_offset = 48, overflow_arg_area = 0x7fa3fdabf940, reg_save_area = 0x7fa3fdabf850}}
        ap_copy = {{gp_offset = 16, fp_offset = 48, overflow_arg_area = 0x7fa3fdabf940, reg_save_area = 0x7fa3fdabf850}}
        fd = 2
        on_2 = <optimized out>
        list = <optimized out>
        nlist = <optimized out>
        cp = <optimized out>
        written = <optimized out>
#3  0x00007fa432fd1996 in malloc_printerr (ptr=0x7fa3f80068f0, str=0x7fa4330d4692 "invalid fastbin entry (free)", action=3) at malloc.c:4902
        buf = "00007fa3f80068f0"
        cp = <optimized out>
#4  _int_free (av=<optimized out>, p=0x7fa3f80068e0, have_lock=0) at malloc.c:3758
        size = <optimized out>
        fb = <optimized out>
        nextchunk = <optimized out>
        nextsize = <optimized out>
        nextinuse = <optimized out>
        prevsize = <optimized out>
        bck = <optimized out>
        fwd = <optimized out>
        errstr = <optimized out>
        locked = <optimized out>
        __func__ = "_int_free"
#5  0x00007fa4342fb969 in g_print () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#6  0x000000000040fc0d in _start ()
No symbol table info available.