.
Thread 3 (LWP 3317):
#0  0x00007f45ffe751f3 in ?? ()
No symbol table info available.
#1  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 2 (LWP 3319):
#0  0x00007f4601168414 in ?? ()
No symbol table info available.
#1  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (LWP 3316):
#0  0x00007f45ffdb0f39 in ?? ()
No symbol table info available.
#1  0x00007f45ffdb4348 in ?? ()
No symbol table info available.
#2  0x0000000000000020 in ?? ()
No symbol table info available.
#3  0x0000000000000000 in ?? ()
No symbol table info available.