.
Thread 4 (LWP 4560):
#0  0x00007f7fbb9d783d in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f7fbbf0e33c in g_main_context_iterate.isra () from /tmp/apport_sandbox_6hSrlB/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f7fbbf0e6c2 in g_main_loop_run () from /tmp/apport_sandbox_6hSrlB/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f7fbb1f9816 in gdbus_shared_thread_func () from /tmp/apport_sandbox_6hSrlB/usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#4  0x00007f7fbbf34b95 in g_thread_proxy () from /tmp/apport_sandbox_6hSrlB/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f7fbbcad66a in start_thread (arg=0x7f7fb6629700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7f7fb6629700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140186497488640, -6695228570374221559, 0, 140737198056655, 140186497489344, 34172848, 6767408116197511433, 6767417666334773513}, 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"
#6  0x00007f7fbb9e2e4d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
No locals.
.
Thread 3 (LWP 4561):
#0  0x00007f7fbb9d783d in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f7fbbf0e33c in g_main_context_iterate.isra () from /tmp/apport_sandbox_6hSrlB/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f7fbbf0e44c in g_main_context_iteration () from /tmp/apport_sandbox_6hSrlB/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f7fb728b28d in ?? () from /tmp/apport_sandbox_6hSrlB/usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
No symbol table info available.
#4  0x00007f7fbbf34b95 in g_thread_proxy () from /tmp/apport_sandbox_6hSrlB/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f7fbbcad66a in start_thread (arg=0x7f7fb5bf6700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7f7fb5bf6700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140186486793984, -6695228570374221559, 0, 140737198057855, 140186486794688, 34207152, 6767413152583536905, 6767417666334773513}, 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"
#6  0x00007f7fbb9e2e4d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
No locals.
.
Thread 2 (LWP 4559):
#0  0x00007f7fbb9d783d in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f7fbbf0e33c in g_main_context_iterate.isra () from /tmp/apport_sandbox_6hSrlB/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f7fbbf0e44c in g_main_context_iteration () from /tmp/apport_sandbox_6hSrlB/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f7fbbf0e489 in glib_worker_main () from /tmp/apport_sandbox_6hSrlB/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f7fbbf34b95 in g_thread_proxy () from /tmp/apport_sandbox_6hSrlB/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f7fbbcad66a in start_thread (arg=0x7f7fb6e2a700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7f7fb6e2a700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140186505881344, -6695228570374221559, 0, 140737198056303, 140186505882048, 0, 6767407017222754569, 6767417666334773513}, 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"
#6  0x00007f7fbb9e2e4d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
No locals.
.
Thread 1 (LWP 4556):
#0  0x00007f7fbb1b3300 in g_desktop_app_info_get_is_hidden () from /tmp/apport_sandbox_6hSrlB/usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#1  0x00007f7fb48d67d3 in process_layout () from /tmp/apport_sandbox_6hSrlB/usr/lib/x86_64-linux-gnu/libgnome-menu-3.so.0
No symbol table info available.
#2  0x00007f7fb48d6a90 in process_layout () from /tmp/apport_sandbox_6hSrlB/usr/lib/x86_64-linux-gnu/libgnome-menu-3.so.0
No symbol table info available.
#3  0x00007f7fb48da12a in gmenu_tree_load_sync () from /tmp/apport_sandbox_6hSrlB/usr/lib/x86_64-linux-gnu/libgnome-menu-3.so.0
No symbol table info available.
#4  0x00007f7fb51bb738 in unity_applications_lens_applications_scope_build_app_menu_index (self=0x20a1190) at daemon.c:3615
        _tmp0_ = <optimized out>
        _tmp6_ = 0x0
        _tmp7_ = 0x0
        _inner_error_ = 0x0
        __func__ = "unity_applications_lens_applications_scope_build_app_menu_index"
#5  0x00007f7fb51bcb2e in block2_data_unref (_userdata_=0x0) at daemon.c:3272
        self = 0x2ad92b0
        _userdata_ = 0x20a1190
        _data2_ = 0x0
#6  0x0000000000000000 in ?? ()
No symbol table info available.