[Bug 42732] GL_OUT_OF_MEMORY followed by NULL dereference in FFXIV Heavensward Benchmark

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=42732

--- Comment #13 from Matteo Bruni <matteo.mystral at gmail.com> ---
(In reply to nospam from comment #12)
> What strikes me as odd is in the unpatched case, all the dri/drm maps are
> allocated in the lower 2 GiB of memory (in contrast to the patched case,
> where most of it is in high memory). Isn't the native linux graphics driver
> allocating this memory? Why would it be affected by the address space
> limitations that wine imposes on Windows binaries?

That's because Wine normally reserves most of the high 2GBs of the addressing
space. You can see it from your "unpatched" attachments:

80000000-f7c10000 ---p 00000000 00:00 0

AFAIUI the idea is to try to enforce all memory allocations to go in the lower
half of the addressing space so that the Windows application doesn't ever get
pointers to high addresses (which it generally doesn't expect and might cause
it to break more or less subtly).

If the LARGE_ADDRESS_AWARE flag is set, Wine drops the high memory map during
process initialization and makes the addressing space available for both native
and Win memory allocations.

-- 
Do not reply to this email, post in Bugzilla using the
above URL to reply.
You are receiving this mail because:
You are watching all bug changes.