Kernel32: 3GB UserSpace boot option

[Stefan Reimer]

> "Stefan Reimer" <lists at startux.de> writes:
>
>> compiling binaries with the LARGE_ADDRESS_AWARE flag set is not enough
>> to
>> be able to use more than 2GB user space.
>> To behave like WindowsXP booted with the /3GB option, at least the
>> lpMaximumApplicationAddress in GetSystemInfo has to be changed to
>> 0xBFFEFFFF and the virtual user space has to be reserved in mmap_init in
>> mmap.c up to that address.
>
> The only thing that needs to be changed is the limit reported in
> GetSystemInfo, everything else is implemented already. Apps built with
> LARGE_ADDRESS_AWARE always get 3Gb of space on Wine.
>
> --
> Alexandre Julliard
> julliard at winehq.org
>

I reverted my changes to mmap.c mmap_init back to
char *user_space_limit = (char *)0x7ffe0000;
but keeping the 0xBFFEFFFF in GetSystemInfo.

Everquest2 crashes after some minutes. I got following errors in log:
err:d3d:CreateIndexBufferVBO Failed to initialize the index buffer with
error GL_OUT_OF_MEMORY (0x505)
...
and about 100000 of
err:syslevel:_EnterSysLevel (0x7ecf9ea0, level 2): Holding 0x7ebda060,
level 3. Expect deadlock!
before crashing.

Using char *user_space_limit = (char *)0xbffe0000;
Everquest2 runs rock stable and uses up to 2.8GB...

So there seems to be an issue either in Everquest2 handling memory or in
wine if it comes to using more than 2GB and OpenGL for example.

Any idea how to go from here ?
Stefan