(gdb) bt
#0  __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007f271bd38f62 in _L_lock_1134 () from /lib64/libpthread.so.0
#2  0x00007f271bd38ee0 in __GI___pthread_mutex_lock (mutex=0x1ac3c40) at pthread_mutex_lock.c:104
#3  0x00007f271bff3801 in g_mutex_lock (mutex=0x7f272132a528 <clutter_threads_mutex>) at gthread-posix.c:213
#4  0x00007f272103a5e4 in clutter_threads_impl_lock () at ./clutter-main.c:223
#5  0x00007f272103baa7 in _clutter_threads_acquire_lock () at ./clutter-main.c:1308
#6  0x00007f272103b83d in _clutter_threads_dispatch (data=0x68590c0) at ./clutter-main.c:1063
#7  0x00007f271bfa3947 in g_idle_dispatch (source=0x33e50e0, callback=0x7f272103b81d <_clutter_threads_dispatch>, 
    user_data=0x68590c0) at gmain.c:5250
#8  0x00007f271bfa1124 in g_main_dispatch (context=0x1aca000) at gmain.c:3065
#9  0x00007f271bfa1e89 in g_main_context_dispatch (context=0x1aca000) at gmain.c:3641
#10 0x00007f271bfa2079 in g_main_context_iterate (context=0x1aca000, block=1, dispatch=1, self=0x1b2d760) at gmain.c:3712
#11 0x00007f271bfa24a9 in g_main_loop_run (loop=0x31edaf0) at gmain.c:3906
#12 0x00007f271acca89a in dbind_send_and_allow_reentry (bus=0x1f1d200, message=0x5931890, error=0x7fffeb09dac0) at dbind.c:95
#13 0x00007f271acc4ea5 in _atspi_dbus_call_partial_va (obj=0x3e67820, interface=0x7f271acd0560 "org.a11y.atspi.Accessible", 
    method=0x7f271accf1c0 "GetInterfaces", error=0x0, type=0x7f271accf06b "", args=0x7fffeb09db58) at atspi-misc.c:1191
#14 0x00007f271acc4d65 in _atspi_dbus_call_partial (obj=0x3e67820, interface=0x7f271acd0560 "org.a11y.atspi.Accessible", 
    method=0x7f271accf1c0 "GetInterfaces", error=0x0, type=0x7f271accf06b "") at atspi-misc.c:1159
#15 0x00007f271acbb985 in _atspi_accessible_is_a (accessible=0x3e67820, 
    interface_name=0x7f271acd05c5 "org.a11y.atspi.Component") at atspi-accessible.c:810
#16 0x00007f271acbbeac in atspi_accessible_get_component (obj=0x3e67820) at atspi-accessible.c:1151
#17 0x00007f271c2a4ecc in ffi_call_unix64 () from /usr/lib64/libffi.so.4
#18 0x00007f271c2a495a in ffi_call () from /usr/lib64/libffi.so.4
#19 0x00007f2725a03a08 in gjs_invoke_c_function (context=0x1fde770, function=0x689cde0, obj=0x7f26ce2dafa0, js_argc=0, 
    js_argv=0x7f26fb3fe408, js_rval=0x7fffeb09e480) at gi/function.c:894
#20 0x00007f2725a04824 in function_call (context=0x1fde770, js_argc=0, vp=0x7f26fb3fe3f8) at gi/function.c:1203
#21 0x00007f27254f1f78 in CallJSNative (args=..., native=<optimized out>, cx=0x1fde770)
    at /home/jhbuild/checkout/gnome/js17-17.0.0/js/src/jscntxtinlines.h:372
#22 js::InvokeKernel (cx=cx@entry=0x1fde770, args=..., construct=construct@entry=js::NO_CONSTRUCT)
    at /home/jhbuild/checkout/gnome/js17-17.0.0/js/src/jsinterp.cpp:345
#23 0x00007f27254ebbe1 in js::Interpret (cx=0x1fde770, entryFrame=0x7f26fb3fe378, interpMode=js::JSINTERP_NORMAL)
    at /home/jhbuild/checkout/gnome/js17-17.0.0/js/src/jsinterp.cpp:2414
#24 0x00007f27256e93c7 in UncachedInlineCall (f=..., initial=initial@entry=js::INITIAL_LOWERED, pret=0x7fffeb09ef58, 
    unjittable=0x7fffeb09ef60, argc=argc@entry=2)
    at /home/jhbuild/checkout/gnome/js17-17.0.0/js/src/methodjit/InvokeHelpers.cpp:327
#25 0x00007f27256eb914 in js::mjit::stubs::UncachedCallHelper (f=..., argc=2, lowered=lowered@entry=true, ucr=<optimized out>)
---Type <return> to continue, or q <return> to quit---
    at /home/jhbuild/checkout/gnome/js17-17.0.0/js/src/methodjit/InvokeHelpers.cpp:410
#26 0x00007f27256ebee2 in UncachedLoweredCall (argc=<optimized out>, f=...)
    at /home/jhbuild/checkout/gnome/js17-17.0.0/js/src/methodjit/InvokeHelpers.cpp:375
#27 js::mjit::stubs::CompileFunction (f=..., argc=<optimized out>)
    at /home/jhbuild/checkout/gnome/js17-17.0.0/js/src/methodjit/InvokeHelpers.cpp:239
#28 0x00007f26df869a9b in ?? ()
#29 0x00007f2600000002 in ?? ()
#30 0x000000000000010c in ?? ()
#31 0x00007fffeb09feb0 in ?? ()
#32 0x0000000000000000 in ?? ()
