r0 = openat$procfs(0xffffffffffffff9c, &(0x7f0000000000)='/proc/sysvipc/shm\x00', 0x0, 0x0)
preadv(r0, &(0x7f00000001c0)=[{&(0x7f00000002c0)=""/4119, 0x1017}], 0x1, 0x0, 0x0)