.
Thread 4 (Thread 0x7f9ca0f86700 (LWP 31030)):
#0  __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
No locals.
#1  0x00007f9cacddc660 in _L_lock_1087 () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#2  0x00007f9cacddc5d9 in __GI___pthread_mutex_lock (mutex=0x1a18800) at ../nptl/pthread_mutex_lock.c:134
        max_cnt = -1
        __PRETTY_FUNCTION__ = "__pthread_mutex_lock"
        type = 0
#3  0x00007f9cacb53817 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f9cacb37871 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f9cacb36f65 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#6  0x00007f9cacdda165 in start_thread (arg=0x7f9ca0f86700) at pthread_create.c:309
        __res = <optimised out>
        pd = 0x7f9ca0f86700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140310692259584, -8904283976755848936, 0, 0, 140310692260288, 140310692259584, 8886975452829440280, 8887002143208888600}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007f9cab80a4dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 3 (Thread 0x7f9c9bfff700 (LWP 31031)):
#0  0x00007f9cacb009fa in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#1  0x00007f9cacb00f94 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f9cacb01097 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f9cac51fd14 in g_param_spec_pool_insert () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#4  0x00007f9cac519f5e in g_object_class_install_property () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#5  0x00007f9cac7cc81b in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#6  0x00007f9cac531dce in g_type_class_ref () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#7  0x00007f9cac51ae59 in g_object_newv () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#8  0x00007f9cac51b5bc in g_object_new () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#9  0x00007f9cac810784 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#10 0x00007f9cac810e1b in g_dbus_address_get_stream_sync () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#11 0x00007f9cac820f5e in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#12 0x00007f9cac78a301 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#13 0x00007f9cac7d60d5 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#14 0x00007f9cacb378ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#15 0x00007f9cacb36f65 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#16 0x00007f9cacdda165 in start_thread (arg=0x7f9c9bfff700) at pthread_create.c:309
        __res = <optimised out>
        pd = 0x7f9c9bfff700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140310608869120, -8904283976755848936, 0, 0, 140310608869824, 140310608869120, 8886894101317015832, 8887002143208888600}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#17 0x00007f9cab80a4dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 2 (Thread 0x7f9ca9787700 (LWP 31029)):
#0  __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
No locals.
#1  0x00007f9cacddc660 in _L_lock_1087 () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#2  0x00007f9cacddc5d9 in __GI___pthread_mutex_lock (mutex=0x1a18800) at ../nptl/pthread_mutex_lock.c:134
        max_cnt = -1
        __PRETTY_FUNCTION__ = "__pthread_mutex_lock"
        type = 4294966784
#3  0x00007f9cacb53817 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f9cacb37871 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f9cacb36f65 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#6  0x00007f9cacdda165 in start_thread (arg=0x7f9ca9787700) at pthread_create.c:309
        __res = <optimised out>
        pd = 0x7f9ca9787700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140310834870016, -8904283976755848936, 0, 0, 140310834870720, 140310834870016, 8886994143990241560, 8887002143208888600}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007f9cab80a4dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 1 (Thread 0x7f9cad1e0880 (LWP 31027)):
#0  0x00007f9cab746117 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
        resultvar = 0
        pid = 31027
        selftid = 31027
#1  0x00007f9cab747808 in __GI_abort () at abort.c:89
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x0, sa_sigaction = 0x0}, sa_mask = {__val = {0, 0, 140310894081447, 5, 0, 140310868437344, 140310867959080, 0, 0, 4227360, 140310894110085, 74, 61, 74, 140310871869952, 140735398037680}}, sa_flags = 1768300655, sa_restorer = 0x6f6320656c75646f}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007f9cac2fea9f in ?? ()
No symbol table info available.
#3  0x00007f9cac2f66f6 in ?? () from /usr/lib/x86_64-linux-gnu/libubuntu_application_api.so.2
No symbol table info available.
#4  0x00007f9cac2fa0c0 in ua_sensors_proximity_new () from /usr/lib/x86_64-linux-gnu/libubuntu_application_api.so.2
No symbol table info available.
#5  0x000000000040da63 in powerd_sensors_init() ()
No symbol table info available.
#6  0x0000000000409197 in main ()
No symbol table info available.