.
Thread 7 (Thread 0x7fc486ffc700 (LWP 27948)):
#0  0x00007fc4b54353b0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fc4a78ac660 in PR_WaitCondVar () at /usr/lib/x86_64-linux-gnu/libnspr4.so
#2  0x00007fc4b0f76c76 in  () at /usr/lib/x86_64-linux-gnu/libmozjs-24.so.0
#3  0x00007fc4a78b1fe8 in  () at /usr/lib/x86_64-linux-gnu/libnspr4.so
#4  0x00007fc4b542f6fa in start_thread (arg=0x7fc486ffc700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7fc486ffc700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140482055227136, 7525828922714499302, 0, 140727619548559, 140482055227840, 1, -7496223474642179866, -7496110677883868954}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#5  0x00007fc4b51652dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
.
Thread 6 (Thread 0x7fc4877fd700 (LWP 27947)):
#0  0x00007fc4b54353b0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fc4a78ac660 in PR_WaitCondVar () at /usr/lib/x86_64-linux-gnu/libnspr4.so
#2  0x00007fc4b0f0391e in  () at /usr/lib/x86_64-linux-gnu/libmozjs-24.so.0
#3  0x00007fc4a78b1fe8 in  () at /usr/lib/x86_64-linux-gnu/libnspr4.so
#4  0x00007fc4b542f6fa in start_thread (arg=0x7fc4877fd700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7fc4877fd700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140482063619840, 7525828922714499302, 0, 140727619548527, 140482063620544, 1, -7496220175570425626, -7496110677883868954}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#5  0x00007fc4b51652dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
.
Thread 5 (Thread 0x7fc487ffe700 (LWP 27946)):
#0  0x00007fc4b51595ad in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fc4b14e28a1 in  () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#2  0x00007fc4b14d3e51 in pa_mainloop_poll () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007fc4b14d44ee in pa_mainloop_iterate () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007fc4b14d45a0 in pa_mainloop_run () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007fc4b14e27e9 in  () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007fc4a7d24178 in  () at /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-8.0.so
#7  0x00007fc4b542f6fa in start_thread (arg=0x7fc487ffe700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7fc487ffe700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140482072012544, 7525828922714499302, 0, 140727619549727, 140482072013248, 140727619550720, -7496221274545182490, -7496110677883868954}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#8  0x00007fc4b51652dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
.
Thread 4 (Thread 0x7fc49a046700 (LWP 27937)):
#0  0x00007fc4b51595ad in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fc4b568f31c in g_main_context_iterate (priority=2147483647, n_fds=4, fds=0x7fc4940152a0, timeout=<optimized out>, context=0x19fb5b0) at /build/glib2.0-SNH0tt/glib2.0-2.47.6/./glib/gmain.c:4135
        poll_func = 0x7fc4b569e230 <g_poll>
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 4
        allocated_nfds = 4
        fds = 0x7fc4940152a0
#2  0x00007fc4b568f31c in g_main_context_iterate (context=0x19fb5b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-SNH0tt/glib2.0-2.47.6/./glib/gmain.c:3835
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 4
        allocated_nfds = 4
        fds = 0x7fc4940152a0
#3  0x00007fc4b568f6a2 in g_main_loop_run (loop=0x19fd500) at /build/glib2.0-SNH0tt/glib2.0-2.47.6/./glib/gmain.c:4034
        __func__ = "g_main_loop_run"
#4  0x00007fc4b5e9a816 in gdbus_shared_thread_func (user_data=0x19fb580) at /build/glib2.0-SNH0tt/glib2.0-2.47.6/./gio/gdbusprivate.c:246
        data = 0x19fb580
#5  0x00007fc4b56b5b65 in g_thread_proxy (data=0x17c6940) at /build/glib2.0-SNH0tt/glib2.0-2.47.6/./glib/gthread.c:780
        thread = 0x17c6940
#6  0x00007fc4b542f6fa in start_thread (arg=0x7fc49a046700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7fc49a046700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140482374297344, 7525828922714499302, 0, 140727619547327, 140482374298048, 27243904, -7496195947123037978, -7496110677883868954}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007fc4b51652dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
.
Thread 3 (Thread 0x7fc498e37700 (LWP 27943)):
#0  0x00007fc4b51595ad in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fc4b568f31c in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7fc4900010c0, timeout=<optimized out>, context=0x1a11740) at /build/glib2.0-SNH0tt/glib2.0-2.47.6/./glib/gmain.c:4135
        poll_func = 0x7fc4b569e230 <g_poll>
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 1
        allocated_nfds = 1
        fds = 0x7fc4900010c0
#2  0x00007fc4b568f31c in g_main_context_iterate (context=context@entry=0x1a11740, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-SNH0tt/glib2.0-2.47.6/./glib/gmain.c:3835
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 1
        allocated_nfds = 1
        fds = 0x7fc4900010c0
#3  0x00007fc4b568f42c in g_main_context_iteration (context=0x1a11740, may_block=1) at /build/glib2.0-SNH0tt/glib2.0-2.47.6/./glib/gmain.c:3901
        retval = <optimized out>
#4  0x00007fc498e3f28d in  () at /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
#5  0x00007fc4b56b5b65 in g_thread_proxy (data=0x7fc4940045e0) at /build/glib2.0-SNH0tt/glib2.0-2.47.6/./glib/gthread.c:780
        thread = 0x7fc4940045e0
#6  0x00007fc4b542f6fa in start_thread (arg=0x7fc498e37700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7fc498e37700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140482355361536, 7525828922714499302, 0, 140727619548271, 140482355362240, 27334464, -7496192862799648538, -7496110677883868954}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007fc4b51652dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
.
Thread 2 (Thread 0x7fc4a0854700 (LWP 27934)):
#0  0x00007fc4b51595ad in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fc4b568f31c in g_main_context_iterate (priority=2147483647, n_fds=2, fds=0x7fc49c0008e0, timeout=<optimized out>, context=0x17c65c0) at /build/glib2.0-SNH0tt/glib2.0-2.47.6/./glib/gmain.c:4135
        poll_func = 0x7fc4b569e230 <g_poll>
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 2
        allocated_nfds = 2
        fds = 0x7fc49c0008e0
#2  0x00007fc4b568f31c in g_main_context_iterate (context=context@entry=0x17c65c0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-SNH0tt/glib2.0-2.47.6/./glib/gmain.c:3835
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 2
        allocated_nfds = 2
        fds = 0x7fc49c0008e0
#3  0x00007fc4b568f42c in g_main_context_iteration (context=0x17c65c0, may_block=may_block@entry=1) at /build/glib2.0-SNH0tt/glib2.0-2.47.6/./glib/gmain.c:3901
        retval = <optimized out>
#4  0x00007fc4b568f469 in glib_worker_main (data=<optimized out>) at /build/glib2.0-SNH0tt/glib2.0-2.47.6/./glib/gmain.c:5672
#5  0x00007fc4b56b5b65 in g_thread_proxy (data=0x17c6800) at /build/glib2.0-SNH0tt/glib2.0-2.47.6/./glib/gthread.c:780
        thread = 0x17c6800
#6  0x00007fc4b542f6fa in start_thread (arg=0x7fc4a0854700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7fc4a0854700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140482483406592, 7525828922714499302, 0, 140727619549839, 140482483407296, 0, -7496139864513828634, -7496110677883868954}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007fc4b51652dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
.
Thread 1 (Thread 0x7fc4b858ca80 (LWP 27931)):
#0  0x00007fc4b70505c0 in meta_window_appears_focused () at /usr/lib/libmutter.so.0
#1  0x00007fc4b702f891 in  () at /usr/lib/libmutter.so.0
#2  0x00007fc4b6395f8a in  () at /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
#3  0x00007fc4b63c0095 in  () at /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
#4  0x00007fc4b6395f8a in  () at /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
#5  0x00007fc4b63a9414 in  () at /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
#6  0x00007fc4b63f53ce in  () at /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
#7  0x00007fc4b63df199 in  () at /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
#8  0x00007fc4b568f127 in g_main_context_dispatch (context=0x17c62d0) at /build/glib2.0-SNH0tt/glib2.0-2.47.6/./glib/gmain.c:3154
        dispatch = 0x7fc4b63df030
        prev_source = 0x0
        was_in_call = 0
        user_data = 0x0
        callback = 0x0
        cb_funcs = <optimized out>
        cb_data = <optimized out>
        need_destroy = <optimized out>
        source = 0x1e88700
        current = 0x19f43b0
        i = 0
#9  0x00007fc4b568f127 in g_main_context_dispatch (context=context@entry=0x17c62d0) at /build/glib2.0-SNH0tt/glib2.0-2.47.6/./glib/gmain.c:3769
#10 0x00007fc4b568f380 in g_main_context_iterate (context=0x17c62d0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-SNH0tt/glib2.0-2.47.6/./glib/gmain.c:3840
        max_priority = 150
        timeout = 0
        some_ready = 1
        nfds = <optimized out>
        allocated_nfds = 12
        fds = 0x2789010
#11 0x00007fc4b568f6a2 in g_main_loop_run (loop=0x1a116b0) at /build/glib2.0-SNH0tt/glib2.0-2.47.6/./glib/gmain.c:4034
        __func__ = "g_main_loop_run"
#12 0x00007fc4b704069c in meta_run () at /usr/lib/libmutter.so.0
#13 0x0000000000402197 in main ()