.
Thread 3 (Thread 0x7f588e18a700 (LWP 3655)):
#0  0x00007f588ffc1bfd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f58904ecfc4 in g_main_context_poll (priority=2147483647, n_fds=2, fds=0x7f58880010e0, timeout=-1, context=0x1e4b380) at /build/buildd/glib2.0-2.41.1/./glib/gmain.c:4028
        poll_func = 0x7f58904fbb00 <g_poll>
#2  g_main_context_iterate (context=0x1e4b380, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.41.1/./glib/gmain.c:3729
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 2
        allocated_nfds = 2
        fds = 0x7f58880010e0
#3  0x00007f58904ed2ea in g_main_loop_run (loop=0x1e4b310) at /build/buildd/glib2.0-2.41.1/./glib/gmain.c:3928
        __FUNCTION__ = "g_main_loop_run"
#4  0x00007f5890cdf0c6 in gdbus_shared_thread_func (user_data=0x1e4b350) at /build/buildd/glib2.0-2.41.1/./gio/gdbusprivate.c:273
        data = 0x1e4b350
#5  0x00007f5890511f65 in g_thread_proxy (data=0x1e4d850) at /build/buildd/glib2.0-2.41.1/./glib/gthread.c:764
        thread = 0x1e4d850
#6  0x00007f588fcbb165 in start_thread (arg=0x7f588e18a700) at pthread_create.c:309
        __res = <optimized out>
        pd = 0x7f588e18a700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140018317829888, -6215169427625903127, 0, 0, 140018317830592, 140018317829888, 6273044121648987113, 6273047825419303913}, 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"
#7  0x00007f588ffcc4dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 2 (Thread 0x7f588d989700 (LWP 4510)):
#0  0x00007f588ffc1bfd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f58904ecfc4 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f58800008c0, timeout=-1, context=0x1e4fc00) at /build/buildd/glib2.0-2.41.1/./glib/gmain.c:4028
        poll_func = 0x7f58904fbb00 <g_poll>
#2  g_main_context_iterate (context=context@entry=0x1e4fc00, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.41.1/./glib/gmain.c:3729
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 1
        allocated_nfds = 1
        fds = 0x7f58800008c0
#3  0x00007f58904ed0cc in g_main_context_iteration (context=0x1e4fc00, may_block=may_block@entry=1) at /build/buildd/glib2.0-2.41.1/./glib/gmain.c:3795
        retval = <optimized out>
#4  0x00007f58904ed109 in glib_worker_main (data=<optimized out>) at /build/buildd/glib2.0-2.41.1/./glib/gmain.c:5541
No locals.
#5  0x00007f5890511f65 in g_thread_proxy (data=0x1e5d050) at /build/buildd/glib2.0-2.41.1/./glib/gthread.c:764
        thread = 0x1e5d050
#6  0x00007f588fcbb165 in start_thread (arg=0x7f588d989700) at pthread_create.c:309
        __res = <optimized out>
        pd = 0x7f588d989700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140018309437184, -6215169427625903127, 0, 0, 140018309437888, 140018309437184, 6273043022674230249, 6273047825419303913}, 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"
#7  0x00007f588ffcc4dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 1 (Thread 0x7f58917f4840 (LWP 3653)):
#0  force_removal (device=device@entry=0x1e37fe0, callback=callback@entry=0x0, user_data=user_data@entry=0x0) at device.c:11982
        d = <optimized out>
#1  0x000000000041db2c in device_removed (device=device@entry=0x1e37fe0) at device.c:5094
        n = <optimized out>
        __FUNCTION__ = "device_removed"
#2  0x000000000040a09f in block_device_remove (d=<optimized out>, daemon=0x1e3a0d0) at daemon.c:1572
        device = 0x1e37fe0
        native_path = 0x1e82960 "/sys/devices/virtual/block/loop0"
#3  device_remove (daemon=0x1e3a0d0, d=<optimized out>) at daemon.c:1589
        subsystem = <optimized out>
#4  0x00007f58907bd138 in g_closure_invoke (closure=0x1e4b8e0, return_value=0x0, n_param_values=3, param_values=0x7fff12210330, invocation_hint=0x7fff122102d0) at /build/buildd/glib2.0-2.41.1/./gobject/gclosure.c:768
        marshal = 0x7f5890a04570 <g_udev_marshal_VOID__STRING_OBJECT>
        marshal_data = 0x0
        in_marshal = 0
        real_closure = 0x1e4b8c0
        __FUNCTION__ = "g_closure_invoke"
#5  0x00007f58907ce5fd in signal_emit_unlocked_R (node=node@entry=0x1e52b00, detail=detail@entry=0, instance=instance@entry=0x1e3c420, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7fff12210330) at /build/buildd/glib2.0-2.41.1/./gobject/gsignal.c:3555
        tmp = <optimized out>
        handler = 0x1e38800
        accumulator = 0x0
        emission = {next = 0x0, instance = 0x1e3c420, ihint = {signal_id = 23, detail = 0, run_type = G_SIGNAL_RUN_FIRST}, state = EMISSION_RUN, chain_type = 4}
        handler_list = 0x1e38800
        return_accu = 0x0
        accu = {g_type = 0, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        signal_id = 23
        max_sequential_handler_number = 80
        return_value_altered = 0
#6  0x00007f58907d62e9 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fff122104e8) at /build/buildd/glib2.0-2.41.1/./gobject/gsignal.c:3311
        instance_and_params = 0x7fff12210330
        signal_return_type = <optimized out>
        param_values = 0x7fff12210348
        i = <optimized out>
        n_params = <optimized out>
        __FUNCTION__ = "g_signal_emit_valist"
#7  0x00007f58907d65a2 in g_signal_emit (instance=instance@entry=0x1e3c420, signal_id=<optimized out>, detail=detail@entry=0) at /build/buildd/glib2.0-2.41.1/./gobject/gsignal.c:3367
        var_args = {{gp_offset = 40, fp_offset = 48, overflow_arg_area = 0x7fff122105c0, reg_save_area = 0x7fff12210500}}
#8  0x00007f5890a019e4 in monitor_event (source=<optimized out>, condition=<optimized out>, data=0x1e3c420) at ../src/gudev/gudevclient.c:103
        client = 0x1e3c420
        device = 0x7f5888004610
        udevice = 0x1e84130
#9  0x00007f58904eccc5 in g_main_dispatch (context=0x1e349a0) at /build/buildd/glib2.0-2.41.1/./glib/gmain.c:3064
        dispatch = 0x7f589052f660 <g_io_unix_dispatch>
        prev_source = 0x0
        was_in_call = 0
        user_data = 0x1e3c420
        callback = 0x7f5890a01990 <monitor_event>
        cb_funcs = 0x7f58907ab920 <g_source_callback_funcs>
        cb_data = 0x1e50220
        need_destroy = <optimized out>
        source = 0x1e52e60
        current = 0x1e45570
        i = 0
#10 g_main_context_dispatch (context=context@entry=0x1e349a0) at /build/buildd/glib2.0-2.41.1/./glib/gmain.c:3663
No locals.
#11 0x00007f58904ed028 in g_main_context_iterate (context=0x1e349a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.41.1/./glib/gmain.c:3734
        max_priority = 2147483647
        timeout = 384195
        some_ready = 1
        nfds = <optimized out>
        allocated_nfds = 11
        fds = 0x1e38090
#12 0x00007f58904ed2ea in g_main_loop_run (loop=0x1e5cc30) at /build/buildd/glib2.0-2.41.1/./glib/gmain.c:3928
        __FUNCTION__ = "g_main_loop_run"
#13 0x0000000000407139 in main (argc=1, argv=0x7fff12210838) at main.c:254
        error = 0x0
        daemon = 0x1e3a0d0
        context = <optimized out>
        system_bus_proxy = <optimized out>
        bus = <optimized out>
        helper_dir = 0x0
        path = <optimized out>
        ret = 1
        replace = 0
        no_debug = 1
        entries = {{long_name = 0x432417 "no-debug", short_name = 110 'n', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x63d448 <no_debug>, description = 0x432420 "Don't print debug information", arg_description = 0x0}, {long_name = 0x43243e "replace", short_name = 114 'r', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x63d438 <replace>, description = 0x432446 "Replace existing daemon", arg_description = 0x0}, {long_name = 0x43245e "helper-dir", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_FILENAME, arg_data = 0x63d440 <helper_dir>, description = 0x432469 "Directory for helper tools", arg_description = 0x0}, {long_name = 0x0, short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x0, description = 0x0, arg_description = 0x0}}