Re: how can I allocate memory in address 0x4800 0000 (virtual)

It's strange: when I allocate a memory of size 0x3456790(PAGE_NOACCESS)
at this address, it's successful; but when I allocate the same size of
memory at 0x2000 0000, it fails.

Why?

K. S. Huang wrote:
Do you mean you want to allocate some memory in Shared Memory Range?
If you call VirtualAlloc with dwSize >= 2 MB, flAllocationType set to
MEM_RESERVE, and flProtect set to PAGE_NOACCESS, it automatically reserves
memory at the shared memory region. This preserves per-process virtual
memory.


<yuanfei.work@xxxxxxxxx>
???????:1167127457.777869.137920@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
It looks malloc did not allocate memory in that adressrange.

thanks


.

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