.
Thread 4 (LWP 1994):
#0  0x00007f0da74db89c in ?? ()
No symbol table info available.
#1  0x0000000000000065 in ?? ()
No symbol table info available.
#2  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 3 (LWP 1987):
#0  0x00007f0da77d09e3 in ?? ()
No symbol table info available.
#1  0x00000000011610d0 in ?? ()
No symbol table info available.
#2  0x00000000ffffffff in ?? ()
No symbol table info available.
#3  0x0000000000000001 in ?? ()
No symbol table info available.
#4  0x00007f0d9c0008e0 in ?? ()
No symbol table info available.
#5  0x0000000000000001 in ?? ()
No symbol table info available.
#6  0x00007f0da6032d84 in ?? ()
No symbol table info available.
#7  0x00000000011610d0 in ?? ()
No symbol table info available.
#8  0xffffffff7fffffff in ?? ()
No symbol table info available.
#9  0x00007f0da62e0ee0 in ?? ()
No symbol table info available.
#10 0x00000000011610d0 in ?? ()
No symbol table info available.
#11 0x0000000000000001 in ?? ()
No symbol table info available.
#12 0x00007f0da62e0ee0 in ?? ()
No symbol table info available.
#13 0x00007f0da40009c0 in ?? ()
No symbol table info available.
#14 0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 2 (LWP 1993):
#0  0x00007f0da7832f66 in ?? ()
No symbol table info available.
#1  0x00007f0da1dee75d in ?? ()
No symbol table info available.
#2  0x00007f0d94000020 in ?? ()
No symbol table info available.
#3  0x00007f0da1df441e in ?? ()
No symbol table info available.
#4  0x00007f0d94015150 in ?? ()
No symbol table info available.
#5  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (LWP 1985):
#0  0x00007f0d8ae92460 in ?? ()
No symbol table info available.
#1  0x0000000000000000 in ?? ()
No symbol table info available.