socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
sendmmsg(0xffffffffffffffff, &(0x7f000000a7c0)=[{{0x0, 0x0, 0x0}}], 0x1, 0x0)
ioctl$sock_TIOCOUTQ(r0, 0x5411, &(0x7f000000aa00))