r0 = socket$unix(0x1, 0x1, 0x0)
r1 = socket$unix(0x1, 0x1, 0x0)
close(r1)
openat$procfs(0xffffffffffffff9c, &(0x7f00000000c0)='/proc/vmstat\x00', 0x0, 0x0)
sendfile(r0, r1, 0x0, 0x5)