r0 = epoll_create1(0x0)
r1 = epoll_create(0x6)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000200))
r2 = epoll_create1(0x0)
r3 = epoll_create(0x6)
epoll_ctl$EPOLL_CTL_ADD(r3, 0x1, r2, &(0x7f0000000200))
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r3, &(0x7f00000000c0))
epoll_ctl$EPOLL_CTL_ADD(r2, 0x1, r0, &(0x7f0000000080))
r4 = epoll_create(0x86)
epoll_ctl$EPOLL_CTL_ADD(r4, 0x1, r1, &(0x7f0000000380))