.
Thread 4 (LWP 2144):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
No locals.
#1  0x00007f230cde3115 in g_cond_wait_until (cond=cond@entry=0x7f230ffd3398, mutex=mutex@entry=0x7f230ffd3390, end_time=end_time@entry=97479542) at /build/buildd/glib2.0-2.37.3/./glib/gthread-posix.c:868
        ts = {tv_sec = 97, tv_nsec = 479542000}
        status = <optimized out>
#2  0x00007f230cd79ad1 in g_async_queue_pop_intern_unlocked (queue=queue@entry=0x7f230ffd3390, wait=wait@entry=1, end_time=end_time@entry=97479542) at /build/buildd/glib2.0-2.37.3/./glib/gasyncqueue.c:424
        retval = <optimized out>
        __PRETTY_FUNCTION__ = "g_async_queue_pop_intern_unlocked"
#3  0x00007f230cd7a05b in g_async_queue_timeout_pop (queue=0x7f230ffd3390, timeout=timeout@entry=15000000) at /build/buildd/glib2.0-2.37.3/./glib/gasyncqueue.c:545
        end_time = 97479542
        retval = <optimized out>
#4  0x00007f230cdc86b6 in g_thread_pool_wait_for_new_pool () at /build/buildd/glib2.0-2.37.3/./glib/gthreadpool.c:169
        pool = <optimized out>
        local_max_idle_time = 15000
        local_wakeup_thread_serial = <optimized out>
        local_max_unused_threads = 2
        last_wakeup_thread_serial = 0
        have_relayed_thread_marker = <optimized out>
#5  g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.37.3/./glib/gthreadpool.c:366
        free_pool = <optimized out>
        task = 0x2
        pool = <optimized out>
#6  0x00007f230cdc7c25 in g_thread_proxy (data=0x7f230ffb2370) at /build/buildd/glib2.0-2.37.3/./glib/gthread.c:798
        thread = 0x7f230ffb2370
#7  0x00007f230c80af8e in start_thread (arg=0x7f22d4e0b700) at pthread_create.c:311
        __res = <optimized out>
        pd = 0x7f22d4e0b700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139787577112320, -1522061910217777698, 0, 139788548276320, 140735217188496, 4096, 1487635936458120670, 1488041381409529310}, 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"
#8  0x00007f230c534e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.
.
Thread 3 (LWP 2137):
#0  0x00007f230c5283cd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f230cda3394 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f22fc0010e0, timeout=-1, context=0x7f230fb80e00) at /build/buildd/glib2.0-2.37.3/./glib/gmain.c:3999
        poll_func = 0x7f230cdb2030 <g_poll>
#2  g_main_context_iterate (context=context@entry=0x7f230fb80e00, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.37.3/./glib/gmain.c:3700
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 1
        allocated_nfds = 1
        fds = 0x7f22fc0010e0
#3  0x00007f230cda349c in g_main_context_iteration (context=0x7f230fb80e00, may_block=1) at /build/buildd/glib2.0-2.37.3/./glib/gmain.c:3766
        retval = <optimized out>
#4  0x00007f2304bc9a1d in ?? () from /tmp/apport_sandbox_OQZFCR/usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
No symbol table info available.
#5  0x00007f230cdc7c25 in g_thread_proxy (data=0x7f230fb31d40) at /build/buildd/glib2.0-2.37.3/./glib/gthread.c:798
        thread = 0x7f230fb31d40
#6  0x00007f230c80af8e in start_thread (arg=0x7f2304545700) at pthread_create.c:311
        __res = <optimized out>
        pd = 0x7f2304545700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139788373219072, -1522061910217777698, 0, 139788548276320, 140735217191296, 4096, 1488022314937294302, 1488041381409529310}, 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"
#7  0x00007f230c534e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.
.
Thread 2 (LWP 2138):
#0  0x00007f230c5283cd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f230cda3394 in g_main_context_poll (priority=2147483647, n_fds=3, fds=0x7f22f40010c0, timeout=-1, context=0x7f22fc0118b0) at /build/buildd/glib2.0-2.37.3/./glib/gmain.c:3999
        poll_func = 0x7f230cdb2030 <g_poll>
#2  g_main_context_iterate (context=0x7f22fc0118b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.37.3/./glib/gmain.c:3700
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 3
        allocated_nfds = 3
        fds = 0x7f22f40010c0
#3  0x00007f230cda37fa in g_main_loop_run (loop=0x7f22fc011840) at /build/buildd/glib2.0-2.37.3/./glib/gmain.c:3899
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#4  0x00007f230d37e5f6 in gdbus_shared_thread_func (user_data=0x7f22fc011880) at /build/buildd/glib2.0-2.37.3/./gio/gdbusprivate.c:278
        data = 0x7f22fc011880
#5  0x00007f230cdc7c25 in g_thread_proxy (data=0x7f230fb74990) at /build/buildd/glib2.0-2.37.3/./glib/gthread.c:798
        thread = 0x7f230fb74990
#6  0x00007f230c80af8e in start_thread (arg=0x7f2303d44700) at pthread_create.c:311
        __res = <optimized out>
        pd = 0x7f2303d44700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139788364826368, -1522061910217777698, 0, 139788548276320, 139788373215456, 4096, 1488030013129301470, 1488041381409529310}, 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"
#7  0x00007f230c534e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.
.
Thread 1 (LWP 2136):
#0  g_type_check_instance_cast (type_instance=0x7f2310071490, type_instance@entry=<error reading variable: Cannot access memory at address 0x7fff78a0d1c8>, iface_type=139788569127904, iface_type@entry=<error reading variable: Cannot access memory at address 0x7fff78a0d1c8>) at /build/buildd/glib2.0-2.37.3/./gobject/gtype.c:4008
        is_instantiatable = <optimized out>
        check = <optimized out>
Cannot access memory at address 0x7fff78a0d1c8