#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 (format=format@entry=0x42674e "restarting with '%s'...\n") at /build/buildd/glib2.0-2.37.5/./glib/gmessages.c:1473
        args = {{gp_offset = 16, fp_offset = 48, overflow_arg_area = 0x7fa3fdabfaf0, reg_save_area = 0x7fa3fdabfa20}}
        string = 0x7fa3f80068f0 "\357\272\001\370\243\177"
        local_glib_print_func = <optimized out>
        __PRETTY_FUNCTION__ = "g_print"
#6  0x000000000040fc0d in _cairo_dock_intercept_signal (signal=<optimized out>) at /build/buildd/cairo-dock-3.2.1/src/cairo-dock.c:210
        __PRETTY_FUNCTION__ = "_cairo_dock_intercept_signal"
        r = <optimized out>
#7  <signal handler called>
No locals.
#8  0x00007fa432f87f77 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
        resultvar = 0
        pid = 3991
        selftid = 4004
#9  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, 140342312304542, 2, 140343207868628, 1, 140343207879656, 3, 140342312304516, 12, 140343207879660, 2, 140342312305328, 13, 140342312307088}}, sa_flags = 87, sa_restorer = 0x7}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#10 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 = 0x7fa3fdac09a0, reg_save_area = 0x7fa3fdac08b0}}
        ap_copy = {{gp_offset = 16, fp_offset = 48, overflow_arg_area = 0x7fa3fdac09a0, reg_save_area = 0x7fa3fdac08b0}}
        fd = 2
        on_2 = <optimized out>
        list = <optimized out>
        nlist = <optimized out>
        cp = <optimized out>
        written = <optimized out>
#11 0x00007fa432fd1996 in malloc_printerr (ptr=0x7fa3f801ad40, str=0x7fa4330d8868 "double free or corruption (fasttop)", action=3) at malloc.c:4902
        buf = "00007fa3f801ad40"
        cp = <optimized out>
#12 _int_free (av=<optimized out>, p=0x7fa3f801ad30, 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"
#13 0x00007fa432295995 in ?? () from /tmp/apport_sandbox_j8HlwO/lib/x86_64-linux-gnu/libdbus-1.so.3
No symbol table info available.
#14 0x00007fa43481338a in dbus_g_proxy_manager_unregister (manager=0x7fa3f80aea70, proxy=proxy@entry=0x7fa3f80b3870) at dbus-gproxy.c:1087
        link = <optimized out>
        list = 0x7fa3f80aaf80
        priv = 0x7fa3f80b3820
        tri = 0x7fa3f80afa00 "org.freedesktop.UPower"
#15 0x00007fa43481376c in dbus_g_proxy_dispose (object=0x7fa3f80b3870) at dbus-gproxy.c:1546
        proxy = 0x7fa3f80b3870
        priv = 0x7fa3f80b3820
#16 0x00007fa4345c0cdc in g_object_unref (_object=0x7fa3f80b3870) at /build/buildd/glib2.0-2.37.5/./gobject/gobject.c:3157
        weak_locations = 0x0
        object = 0x7fa3f80b3870
        old_ref = <optimized out>
        __PRETTY_FUNCTION__ = "g_object_unref"
        __FUNCTION__ = "g_object_unref"
#17 0x00007fa416d29863 in up_client_finalize (object=0x1d72d90) at up-client.c:1123
        client = 0x1d72d90
        __PRETTY_FUNCTION__ = "up_client_finalize"
#18 0x00007fa4345c0d6a in g_object_unref (_object=0x1d72d90) at /build/buildd/glib2.0-2.37.5/./gobject/gobject.c:3194
        weak_locations = <optimized out>
        object = 0x1d72d90
        old_ref = 1
        __PRETTY_FUNCTION__ = "g_object_unref"
        __FUNCTION__ = "g_object_unref"
#19 0x00007fa416f3a5c3 in _cd_logout_check_capabilities_async (pSharedMemory=0x1d14240) at /build/buildd/cairo-dock-plug-ins-3.2.1/logout/src/applet-logout.c:77
        error = 0x0
        pUPowerClient = 0x1d72d90
        __PRETTY_FUNCTION__ = "_cd_logout_check_capabilities_async"
        pProxy = <optimized out>
        seat = <optimized out>
#20 0x00007fa4333a17d0 in _cairo_dock_threaded_calculation (pTask=0x1d0c930) at /build/buildd/cairo-dock-3.2.1/src/gldit/cairo-dock-task.c:151
No locals.
#21 0x00007fa434318cd5 in g_thread_proxy (data=0x1bfd850) at /build/buildd/glib2.0-2.37.5/./glib/gthread.c:798
        thread = 0x1bfd850
#22 0x00007fa4324c5f6e in start_thread (arg=0x7fa3fdac1700) at pthread_create.c:311
        __res = <optimized out>
        pd = 0x7fa3fdac1700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140342312310528, 318700903163911025, 0, 28605168, 140733922212080, 23, -347978316939109519, -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"
#23 0x00007fa43304ae2d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.