Hi,

In the ltp madvise03 case, it will allocate a share memory
whose size is equal to the max share memory value.
The max share memory value can be changed to a bigger one
through change /proc/sys/kernel/shmmax.
then the 0x22000000 is not a invalid address.
So change the address to NULL to let the system choose a valid address.

Thanks,

Lina