Comment 3 for bug 1784163

I attached gdb to the running (hung) process. Here's a backtrace:

(gdb) bt
#0 0x00007f9ee44dcbf9 in __GI___poll (fds=0x7f9e9c001390, nfds=3, timeout=-1)
    at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007f9ee5098439 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007f9ee50987d2 in g_main_loop_run ()
   from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007f9eebad2299 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libgoa-backend-1.0.so.1
#4 0x00007f9eebad2e65 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libgoa-backend-1.0.so.1
#5 0x00007f9eebab52c8 in goa_provider_add_account ()
   from /usr/lib/x86_64-linux-gnu/libgoa-backend-1.0.so.1
#6 0x00005562e6e10d3b in add_ubuntusso_account (page=0x5562e875d610)
    at gis-livepatch-page.c:151
#7 login_and_enable_livepatch (page=page@entry=0x5562e875d610)
    at gis-livepatch-page.c:275
#8 0x00005562e6e116cc in on_livepatch_permission_acquired (
    source=<optimised out>, res=0x5562e901f9f0, data=<optimised out>)
    at gis-livepatch-page.c:317
#9 0x00007f9ee5631026 in g_simple_async_result_complete ()
   from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#10 0x00007f9eec5fcca6 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libpolkit-gobject-1.so.0
#11 0x00007f9ee5631026 in g_simple_async_result_complete ()
---Type <return> to continue, or q <return> to quit---
   from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#12 0x00007f9eec5f408d in ?? ()
   from /usr/lib/x86_64-linux-gnu/libpolkit-gobject-1.so.0
#13 0x00007f9ee5643093 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#14 0x00007f9ee5643ab6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#15 0x00007f9ee56823fb in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#16 0x00007f9ee5643093 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#17 0x00007f9ee5643ab6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#18 0x00007f9ee5676ed2 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#19 0x00007f9ee5643093 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#20 0x00007f9ee56430c9 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#21 0x00007f9ee50980f5 in g_main_context_dispatch ()
   from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f9ee50984c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f9ee509854c in g_main_context_iteration ()
   from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f9ee5658d2d in g_application_run ()
   from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#25 0x00005562e6de801e in main (argc=<optimised out>, argv=<optimised out>)
    at gnome-initial-setup.c:309