switchboard bluetooth

(gdb) r bluetooth
Starting program: /usr/local/bin/switchboard bluetooth
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffe59fc700 (LWP 8729)]
[New Thread 0x7fffe4d8d700 (LWP 8730)]
[New Thread 0x7fffdcf58700 (LWP 8731)]
[New Thread 0x7fffd562c700 (LWP 8732)]
[New Thread 0x7fffd4e2b700 (LWP 8733)]
[INFO 14:30:58.827089] Application.vala:155: System Settings version: 2.0
[INFO 14:30:58.827155] Application.vala:157: Kernel version: 4.4.0-16-generic
[New Thread 0x7fffd35bb700 (LWP 8734)]
[New Thread 0x7fffba6b4700 (LWP 8736)]

Thread 1 "switchboard" received signal SIGSEGV, Segmentation fault.
__GI___pthread_mutex_lock (mutex=0x0) at ../nptl/pthread_mutex_lock.c:67
67  ../nptl/pthread_mutex_lock.c: No such file or directory.
(gdb) bt
#0  __GI___pthread_mutex_lock (mutex=0x0) at ../nptl/pthread_mutex_lock.c:67
#1  0x00007ffff36a2bfa in XrmQGetResource (db=0x73cb10, names=names@entry=0x7fffffffa2e0, classes=classes@entry=0x7fffffffa2f0, pType=pType@entry=0x7fffffffa2cc,
    pValue=pValue@entry=0x7fffffffa2d0) at ../../src/Xrm.c:2549
#2  0x00007ffff367ef86 in XGetDefault (dpy=0x649ee0, prog=<optimized out>, name=0x7ffff5055974 "antialias") at ../../src/GetDflt.c:231