.
Thread 7 (Thread 0x7f3d0c86d700 (LWP 18300)):
#0  0x00007f3d1389491d in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f3d14933e66 in g_cond_wait_until () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3d148b83e1 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3d148b8a06 in g_async_queue_timeout_pop () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3d14911909 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3d14911121 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f3d13973669 in start_thread (arg=<optimized out>) at pthread_create.c:479
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139900179896064, 1563023531622281649, 140727008874254, 140727008874255, 140727008874400, 139900179893312, -1456104605406711375, -1456106679760440911}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#7  0x00007f3d1389b2f3 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
.
Thread 6 (Thread 0x7f3cf7a89700 (LWP 16278)):
#0  0x00007f3d1389491d in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f3d14933e66 in g_cond_wait_until () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3d148b83e1 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3d148b8b0b in g_async_queue_timed_pop () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3cf7a902e3 in  () at /usr/lib/x86_64-linux-gnu/nautilus/extensions-3.0/libnautilus-dropbox.so
#5  0x00007f3d14911121 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f3d13973669 in start_thread (arg=<optimized out>) at pthread_create.c:479
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139899829786368, 1563023531622281649, 140727008877390, 140727008877391, 140727008877536, 139899829783616, -1456607921886711375, -1456106679760440911}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#7  0x00007f3d1389b2f3 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
.
Thread 5 (Thread 0x7f3d0f99f700 (LWP 16271)):
#0  0x00007f3d1388ebff in __GI___poll (fds=0x55ae35b54da0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007f3d148e7a4e in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3d148e7b83 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3d148e7bd1 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3d14911121 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3d13973669 in start_thread (arg=<optimized out>) at pthread_create.c:479
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139900231481088, 1563023531622281649, 140727008874478, 140727008874479, 140727008874624, 139900231478336, -1456097897741536847, -1456106679760440911}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#6  0x00007f3d1389b2f3 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
.
Thread 4 (Thread 0x7f3d0e101700 (LWP 16275)):
#0  0x00007f3d1388ebff in __GI___poll (fds=0x55ae35df19a0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007f3d148e7a4e in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3d148e7b83 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3d149d681d in  () at /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
#4  0x00007f3d14911121 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3d13973669 in start_thread (arg=<optimized out>) at pthread_create.c:479
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139900205668096, 1563023531622281649, 140727008875726, 140727008875727, 140727008875872, 139900205665344, -1456098921017495119, -1456106679760440911}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#6  0x00007f3d1389b2f3 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
.
Thread 3 (Thread 0x7f3d0f19e700 (LWP 16272)):
#0  0x00007f3d1388ebff in __GI___poll (fds=0x55ae367be560, nfds=7, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007f3d148e7a4e in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3d148e7dd3 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3d13de350a in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f3d14911121 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3d13973669 in start_thread (arg=<optimized out>) at pthread_create.c:479
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139900223088384, 1563023531622281649, 140727008874894, 140727008874895, 140727008875040, 139900223085632, -1456096797693038159, -1456106679760440911}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#6  0x00007f3d1389b2f3 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
.
Thread 2 (Thread 0x7f3d0e99d700 (LWP 16274)):
#0  0x00007f3d1389491d in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f3d14933d43 in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3d148b83fb in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3d14911837 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3d14911121 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3d13973669 in start_thread (arg=<optimized out>) at pthread_create.c:479
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139900214695680, 1563023531622281649, 140727008877470, 140727008877471, 140727008877616, 139900214692928, -1456100095691050575, -1456106679760440911}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#6  0x00007f3d1389b2f3 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
.
Thread 1 (Thread 0x7f3d0fa1c600 (LWP 16270)):
#0  0x000055ae33b30b2d in nautilus_view_is_searching ()
#1  0x000055ae33b353e9 in  ()
#2  0x00007f3d13c7f6e2 in g_closure_invoke () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#3  0x00007f3d13c93544 in  () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#4  0x00007f3d13c9c327 in g_signal_emit_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#5  0x00007f3d13c9c9b3 in g_signal_emit () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#6  0x00007f3d13daed0d in g_action_change_state () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#7  0x000055ae33b3241a in nautilus_window_slot_handle_event ()
#8  0x000055ae33b376ef in  ()
#9  0x00007f3d1456a16f in  () at /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#10 0x00007f3d13c7f936 in  () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#11 0x00007f3d13c9bdcb in g_signal_emit_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#12 0x00007f3d13c9c9b3 in g_signal_emit () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#13 0x00007f3d145147e3 in  () at /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#14 0x00007f3d143d05af in  () at /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#15 0x00007f3d143d274b in gtk_main_do_event () at /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#16 0x00007f3d140bcf19 in  () at /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
#17 0x00007f3d1411b446 in  () at /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
#18 0x00007f3d148e785d in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f3d148e7ae0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f3d148e7b83 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f3d13da7a75 in g_application_run () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#22 0x000055ae33b1eccb in main ()