pipe(&(0x7f00000003c0)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
r1 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
splice(r1, 0x0, r0, 0x0, 0x5cb, 0x0)