.
Thread 3 (process 2986):
#0  0x00cb1416 in __kernel_vsyscall ()
No symbol table info available.
#1  0x00747e96 in *__GI___poll (fds=0x912a4f0, 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 2 (process 2929):
#0  0x00cb1416 in __kernel_vsyscall ()
No symbol table info available.
#1  0x00747e96 in *__GI___poll (fds=0x8b1e6f8, nfds=3, 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 2921):
#0  g_atomic_int_get (atomic=0x10)
    at /build/buildd/glib2.0-2.27.93/glib/gatomic-gcc.c:64
No locals.
#1  0x007fd360 in g_bit_lock (address=0x10, lock_bit=0)
    at /build/buildd/glib2.0-2.27.93/glib/gbitlock.c:215
	class = Unhandled dwarf expression opcode 0x9f