.
Thread 3 (process 1518):
#0  0x00159416 in __kernel_vsyscall ()
No symbol table info available.
#1  0x0012122c in __lll_unlock_wake () from /lib/libpthread.so.0
No locals.
#2  0x0011d85b in _L_unlock_692 () from /lib/libpthread.so.0
No locals.
#3  0x0011d78a in __pthread_mutex_unlock_usercnt (mutex=0x8ea7e94, 
    decr=<value optimized out>) at pthread_mutex_unlock.c:267
	type = <value optimized out>
	__PRETTY_FUNCTION__ = "__pthread_mutex_unlock_usercnt"
#4  0x009f6216 in pthread_mutex_unlock (mutex=0x8ea7e94) at forward.c:159
	__p = <value optimized out>
#5  0x007fad6c in g_source_attach (source=0xb6c6c6d0, 
    context=<value optimized out>)
    at /build/buildd/glib2.0-2.27.92/glib/gmain.c:3816
	result = 741
	__PRETTY_FUNCTION__ = "g_source_attach"
#6  0x08ea7e94 in ?? ()
No symbol table info available.
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
.
Thread 2 (process 1524):
#0  0x00159416 in __kernel_vsyscall ()
No symbol table info available.
#1  0x009d9de6 in *__GI___poll (fds=0xb6c01c08, nfds=1, timeout=-1)
    at ../sysdeps/unix/sysv/linux/poll.c:87
	resultvar = <value optimized out>
	oldtype = -516
	result = <value optimized out>
#2  0xffffffff in ?? ()
No symbol table info available.
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
.
Thread 1 (process 1516):
#0  0x00567078 in g_type_check_instance_is_a (type_instance=0x909ecc8, 
    iface_type=150148952)
    at /build/buildd/glib2.0-2.27.92/gobject/gtype.c:1766
	node = (TypeNode *) 0x20090000
	iface = (TypeNode *) 0x8f31758
	check = 0
#1  0x0083cf6c in g_variant_unlock (value=Unhandled dwarf expression opcode 0x9f
)
    at /build/buildd/glib2.0-2.27.92/glib/gvariant-core.c:232
No locals.
Backtrace stopped: previous frame inner to this frame (corrupt stack?)