r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup/cgroup.procs\x00', 0x0, 0x0)
open_by_handle_at(r0, &(0x7f0000000000)=@shmem={0xc, 0x1, {0x6}}, 0x0)