#0  <signal handler called>
#1  0x00007f690a51f53b in __GI_epoll_create1 () at ../sysdeps/unix/syscall-template.S:120
  [Error: syscall-template.S was not found in source tree]
#2  0x00007f690a9528d7 in _g_fd_is_pollable (fd=13) at ../../../gio/giounix-private.c:85
  [Error: giounix-private.c was not found in source tree]
#3  0x00007f690a95c5e2 in g_unix_input_stream_set_property (object=0x7f68c4002600, prop_id=<optimized out>, value=0x7f68dfffde80, pspec=0x5569ff51b860) at ../../../gio/gunixinputstream.c:189
  [Error: gunixinputstream.c was not found in source tree]
#4  0x00007f690a84714c in object_set_property (object=object@entry=0x7f68c4002600, pspec=0x5569ff51b860, value=0x7f68dfffde80, nqueue=nqueue@entry=0x0) at ../../../gobject/gobject.c:1792
  [Error: gobject.c was not found in source tree]
#5  0x00007f690a84797a in g_object_new_internal (class=class@entry=0x5569ff52dca0, params=params@entry=0x7f68dfffdd80, n_params=n_params@entry=2) at ../../../gobject/gobject.c:2269
  [Error: gobject.c was not found in source tree]
#6  0x00007f690a849843 in g_object_new_valist (object_type=<optimized out>, first_property_name=first_property_name@entry=0x7f690a9e74e9 "fd", var_args=var_args@entry=0x7f68dfffe050) at ../../../gobject/gobject.c:2563
  [Error: gobject.c was not found in source tree]
#7  0x00007f690a849e9d in g_object_new (object_type=<optimized out>, first_property_name=first_property_name@entry=0x7f690a9e74e9 "fd") at ../../../gobject/gobject.c:2038
  [Error: gobject.c was not found in source tree]
#8  0x00007f690a95ca58 in g_unix_input_stream_new (fd=fd@entry=13, close_fd=close_fd@entry=1) at ../../../gio/gunixinputstream.c:251
  [Error: gunixinputstream.c was not found in source tree]
#9  0x00007f690a7bfaef in create_pipe_for_read (istream=istream@entry=0x7f68dfffe1d8, fd_list=fd_list@entry=0x7f68dfffe1e0, fd_idx=fd_idx@entry=0x7f68dfffe1cc, error=error@entry=0x7f68dfffe1d0) at ../src/libtracker-sparql/bus/tracker-bus.c:625
  [Error: tracker-bus.c was not found in source tree]
#10 0x00007f690a7bffbe in tracker_bus_connection_perform_query_async (bus=0x5569ff7b8480, sparql=0x5569ff9bf000 "SELECT ?id ?uri { VALUES ?id { ~arg1 ~arg2 ~arg3 ~arg4 ~arg5 ~arg6 ~arg7 ~arg8 ~arg9 ~arg10 ~arg11 ~arg12 ~arg13 ~arg14 ~arg15 ~arg16 ~arg17 ~arg18 ~arg19 ~arg20 ~arg21 ~arg22 ~arg23 ~arg24 ~arg25 ~ar"..., arguments=0x7f68f8044760, cancellable=0x7f68f8005320, callback=<optimized out>, user_data=<optimized out>) at ../src/libtracker-sparql/bus/tracker-bus.c:1555
  [Error: tracker-bus.c was not found in source tree]
#11 0x00007f690a77c359 in tracker_notifier_query_extra_info (notifier=notifier@entry=0x5569ff9eafa0, cache=cache@entry=0x5569ff60a880) at ../src/libtracker-sparql/tracker-notifier.c:620
  [Error: tracker-notifier.c was not found in source tree]
#12 0x00007f690a77c5f3 in handle_cursor (task=0x5569ff9cc3d0, source_object=0x5569ff51bce0, task_data=0x5569ff60a880, cancellable=<optimized out>) at ../src/libtracker-sparql/tracker-notifier.c:512
  [Error: tracker-notifier.c was not found in source tree]
#13 0x00007f690a9368a7 in g_task_thread_pool_thread (thread_data=0x5569ff9cc3d0, pool_data=<optimized out>) at ../../../gio/gtask.c:1454
  [Error: gtask.c was not found in source tree]
#14 0x00007f690aae4122 in g_thread_pool_thread_proxy (data=<optimized out>) at ../../../glib/gthreadpool.c:352
  [Error: gthreadpool.c was not found in source tree]
#15 0x00007f690aae1301 in g_thread_proxy (data=0x7f68d401a860) at ../../../glib/gthread.c:831
  [Error: gthread.c was not found in source tree]
#16 0x00007f690a4902e2 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
  [Error: pthread_create.c was not found in source tree]
#17 0x00007f690a51f240 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
  [Error: clone3.S was not found in source tree]