r0 = openat$procfs(0xffffffffffffff9c, &(0x7f0000000240)='/proc/sysvipc/sem\x00', 0x0, 0x0)
preadv(r0, &(0x7f00000019c0)=[{&(0x7f0000000000)=""/216, 0xd8}], 0x1, 0x0, 0x0)