pipe(&(0x7f0000000040)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
write(r1, &(0x7f0000000140)='x', 0x1)
r2 = epoll_create1(0x0)
epoll_ctl$EPOLL_CTL_ADD(r2, 0x1, r1, &(0x7f0000000000))
vmsplice(r0, &(0x7f00000000c0)=[{&(0x7f0000000180)='w', 0x1}], 0x1, 0x0)