I hope this is useful:
Thread 7 (Thread 0x7fffe2824700 (LWP 8297)):
#0 0x00007ffff303bae9 in syscall () at /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007ffff38a4bdf in g_cond_wait (cond=cond@entry=0xd46dc8,
mutex=mutex@entry=0xd46dc0) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gthread-posix.c:1397
#2 0x00007ffff383496b in g_async_queue_pop_intern_unlocked
(queue=0xd46dc0, wait=wait@entry=1, end_time=end_time@entry=-1) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gasyncqueue.c:419
#3 0x00007ffff3834e36 in g_async_queue_pop_unlocked (queue=<optimized
out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gasyncqueue.c:475
#4 0x00007ffff3887565 in g_thread_pool_thread_proxy (pool=0xd46f10) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gthreadpool.c:245
#5 0x00007ffff3887565 in g_thread_pool_thread_proxy (data=<optimized
out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gthreadpool.c:296
#6 0x00007ffff3886b75 in g_thread_proxy (data=0xc57f20) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gthread.c:780
#7 0x00007ffff3302454 in start_thread () at
/lib/x86_64-linux-gnu/libpthread.so.0
#8 0x00007ffff303feed in clone () at /lib/x86_64-linux-gnu/libc.so.6
Thread 6 (Thread 0x7fffe3025700 (LWP 8296)):
#0 0x00007ffff303bae9 in syscall () at /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007ffff38a4bdf in g_cond_wait (cond=cond@entry=0xd46dc8,
mutex=mutex@entry=0xd46dc0) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gthread-posix.c:1397
#2 0x00007ffff383496b in g_async_queue_pop_intern_unlocked
(queue=0xd46dc0, wait=wait@entry=1, end_time=end_time@entry=-1) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gasyncqueue.c:419
#3 0x00007ffff3834e36 in g_async_queue_pop_unlocked (queue=<optimized
out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gasyncqueue.c:475
#4 0x00007ffff3887565 in g_thread_pool_thread_proxy (pool=0xd46f10) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gthreadpool.c:245
#5 0x00007ffff3887565 in g_thread_pool_thread_proxy (data=<optimized
out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gthreadpool.c:296
#6 0x00007ffff3886b75 in g_thread_proxy (data=0xc57ed0) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gthread.c:780
#7 0x00007ffff3302454 in start_thread () at
/lib/x86_64-linux-gnu/libpthread.so.0
#8 0x00007ffff303feed in clone () at /lib/x86_64-linux-gnu/libc.so.6
Thread 5 (Thread 0x7fffe3826700 (LWP 8295)):
#0 0x00007ffff303bae9 in syscall () at /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007ffff38a4bdf in g_cond_wait (cond=cond@entry=0xd46dc8,
mutex=mutex@entry=0xd46dc0) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gthread-posix.c:1397
#2 0x00007ffff383496b in g_async_queue_pop_intern_unlocked
(queue=0xd46dc0, wait=wait@entry=1, end_time=end_time@entry=-1) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gasyncqueue.c:419
#3 0x00007ffff3834e36 in g_async_queue_pop_unlocked (queue=<optimized
out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gasyncqueue.c:475
#4 0x00007ffff3887565 in g_thread_pool_thread_proxy (pool=0xd46f10) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gthreadpool.c:245
#5 0x00007ffff3887565 in g_thread_pool_thread_proxy (data=<optimized
out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gthreadpool.c:296
#6 0x00007ffff3886b75 in g_thread_proxy (data=0xc57e80) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gthread.c:780
#7 0x00007ffff3302454 in start_thread () at
/lib/x86_64-linux-gnu/libpthread.so.0
#8 0x00007ffff303feed in clone () at /lib/x86_64-linux-gnu/libc.so.6
Thread 4 (Thread 0x7fffe4027700 (LWP 8294)):
#0 0x00007ffff303bae9 in syscall () at /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007ffff38a4bdf in g_cond_wait (cond=cond@entry=0xd46dc8,
mutex=mutex@entry=0xd46dc0) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gthread-posix.c:1397
#2 0x00007ffff383496b in g_async_queue_pop_intern_unlocked
(queue=0xd46dc0, wait=wait@entry=1, end_time=end_time@entry=-1) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gasyncqueue.c:419
#3 0x00007ffff3834e36 in g_async_queue_pop_unlocked (queue=<optimized
out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gasyncqueue.c:475
#4 0x00007ffff3887565 in g_thread_pool_thread_proxy (pool=0xd46f10) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gthreadpool.c:245
#5 0x00007ffff3887565 in g_thread_pool_thread_proxy (data=<optimized
out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gthreadpool.c:296
#6 0x00007ffff3886b75 in g_thread_proxy (data=0xc57e30) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gthread.c:780
#7 0x00007ffff3302454 in start_thread () at
/lib/x86_64-linux-gnu/libpthread.so.0
#8 0x00007ffff303feed in clone () at /lib/x86_64-linux-gnu/libc.so.6
Thread 3 (Thread 0x7fffe4828700 (LWP 8293)):
#0 0x00007ffff3036e5d in poll () at /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007ffff386032c in g_main_context_iterate (priority=2147483647,
n_fds=2, fds=0x7fffd40010c0, timeout=<optimized out>, context=0xd21b70)
at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:4135
#2 0x00007ffff386032c in g_main_context_iterate (context=0xd21b70,
block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3835
#3 0x00007ffff38606b2 in g_main_loop_run (loop=0xd21b00) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:4034
#4 0x00007ffff42a5906 in gdbus_shared_thread_func (user_data=0xd21b40)
at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./gio/gdbusprivate.c:246
#5 0x00007ffff3886b75 in g_thread_proxy (data=0xc57cf0) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gthread.c:780
#6 0x00007ffff3302454 in start_thread () at
/lib/x86_64-linux-gnu/libpthread.so.0
#7 0x00007ffff303feed in clone () at /lib/x86_64-linux-gnu/libc.so.6
Thread 2 (Thread 0x7fffe58bc700 (LWP 8292)):
#0 0x00007ffff3036e5d in poll () at /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007ffff386032c in g_main_context_iterate (priority=2147483647,
n_fds=2, fds=0x7fffdc0008e0, timeout=<optimized out>, context=0xd21340)
at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:4135
#2 0x00007ffff386032c in g_main_context_iterate
(context=context@entry=0xd21340, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3835
#3 0x00007ffff386043c in g_main_context_iteration (context=0xd21340,
may_block=may_block@entry=1) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#4 0x00007ffff3860479 in glib_worker_main (data=<optimized out>) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:5672
#5 0x00007ffff3886b75 in g_thread_proxy (data=0xc57ca0) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gthread.c:780
#6 0x00007ffff3302454 in start_thread () at
/lib/x86_64-linux-gnu/libpthread.so.0
#7 0x00007ffff303feed in clone () at /lib/x86_64-linux-gnu/libc.so.6
Thread 1 (Thread 0x7ffff7f27a00 (LWP 8288)):
#0 0x00007ffff751cd09 in remove_capslock_feedback
(entry=0x7fffb00048e0) at
/build/gtk+2.0-bs8YjO/gtk+2.0-2.24.30/gtk/gtkentry.c:10106
#1 0x00007ffff3d391d4 in _g_closure_invoke_va
(closure=closure@entry=0x3bacab0, return_value=return_value@entry=0x0,
instance=instance@entry=0x17b0820, args=args@entry=0x7fffffffdb78,
n_params=<optimized out>, param_types=0x0) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./gobject/gclosure.c:867
#2 0x00007ffff3d539a6 in g_signal_emit_valist
(instance=instance@entry=0x17b0820, signal_id=signal_id@entry=252,
detail=detail@entry=0, var_args=var_args@entry=0x7fffffffdb78) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./gobject/gsignal.c:3294
#3 0x00007ffff3d54555 in g_signal_emit_by_name (instance=0x17b0820,
detailed_signal=detailed_signal@entry=0x7ffff72331dc "state-changed") at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./gobject/gsignal.c:3481
#4 0x00007ffff72021b8 in _gdk_keymap_state_changed
(display=display@entry=0xcae040 [GdkDisplayX11],
xevent=xevent@entry=0x7fffffffde20) at
/build/gtk+2.0-bs8YjO/gtk+2.0-2.24.30/gdk/x11/gdkkeys-x11.c:716
#5 0x00007ffff71fc37e in gdk_event_translate
(display=display@entry=0xcae040 [GdkDisplayX11],
event=event@entry=0x38d2480, xevent=xevent@entry=0x7fffffffde20,
return_exposes=return_exposes@entry=0) at
/build/gtk+2.0-bs8YjO/gtk+2.0-2.24.30/gdk/x11/gdkevents-x11.c:2142
#6 0x00007ffff71fcb86 in _gdk_events_queue
(display=display@entry=0xcae040 [GdkDisplayX11]) at
/build/gtk+2.0-bs8YjO/gtk+2.0-2.24.30/gdk/x11/gdkevents-x11.c:2358
#7 0x00007ffff71fcc2e in gdk_event_dispatch (source=<optimized out>,
callback=<optimized out>, user_data=<optimized out>) at
/build/gtk+2.0-bs8YjO/gtk+2.0-2.24.30/gdk/x11/gdkevents-x11.c:2419
#8 0x00007ffff3860137 in g_main_context_dispatch (context=0xd0faa0) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3154
#9 0x00007ffff3860137 in g_main_context_dispatch
(context=context@entry=0xd0faa0) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3769
#10 0x00007ffff3860390 in g_main_context_iterate (context=0xd0faa0,
block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3840
#11 0x00007ffff38606b2 in g_main_loop_run (loop=0x2942930) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:4034
#12 0x0000000000482921 in app_run (full_prog_name=<optimized out>,
filenames=<optimized out>, alternate_system_gimprc=<optimized out>,
alternate_gimprc=<optimized out>, session_name=<optimized out>,
batch_interpreter=0x0, batch_commands=0x0, as_new=0, no_interface=0,
no_data=0, no_fonts=0, no_splash=0, be_verbose=0, use_shm=1,
use_cpu_accel=1, console_messages=0, use_debug_handler=0,
stack_trace_mode=GIMP_STACK_TRACE_NEVER,
pdb_compat_mode=GIMP_PDB_COMPAT_ON) at
/build/gimp-Y5VB2v/gimp-2.8.16/./app/app.c:263
#13 0x00000000004823e5 in main (argc=<optimized out>, argv=0xc3ed10) at
/build/gimp-Y5VB2v/gimp-2.8.16/./app/main.c:488
