.
Thread 3 (LWP 2889):
#0  0x00007fa7d14f1f7d in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007fa7d1a316a4 in ?? ()
No symbol table info available.
#2  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 2 (LWP 2888):
#0  0x00007fa7d14f1f7d in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007fa7d1a316a4 in ?? ()
No symbol table info available.
#2  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (LWP 2886):
#0  0x00007fa7d1a383d9 in ?? ()
No symbol table info available.
#1  0x0000000000000020 in ?? ()
No symbol table info available.
#2  0x00000004d5942ac0 in ?? ()
No symbol table info available.
#3  0x00007fa7d1a37b70 in ?? ()
No symbol table info available.
#4  0x0000000000000000 in ?? ()
No symbol table info available.