> On 12 May 2016, at 17:09, Daniel Jour <daniel.oert...@gmail.com> wrote:
>
> Martin wrote:
>> # define TRY_EMPTY_VM_SPACE 0xb0000000
>
> Using this address actually works :) So I guess for some reason I cannot
> mmap addresses as high up as 0x4000000000000 ... the questions is:
> Why, when it seems to be unmapped?
sys_mmap() found in sys/uvm/uvm_mmap.c tests FIXED maps for (values for
amd64 in parentheses) for
addr >= VM_MIN_ADDRESS (0)
and
addr+size <= VM_MAXUSER_ADDRESS (0x00007f8000000000)
You try a value above VM_MAXUSER_ADDRESS:
0x0004000000000000 > 0x00007f8000000000
--
J. Hannken-Illjes - hann...@eis.cs.tu-bs.de - TU Braunschweig (Germany)
