[Bug 45218] New: Fallout 4 Script Extender fails to allocate trampoline buffers

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=45218

            Bug ID: 45218
           Summary: Fallout 4 Script Extender fails to allocate trampoline
                    buffers
           Product: Wine
           Version: 3.8
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: ntdll
          Assignee: wine-bugs at winehq.org
          Reporter: buggy at ifel.se
      Distribution: ---

Created attachment 61445
  --> https://bugs.winehq.org/attachment.cgi?id=61445
f4se log

f4se will abort initialization and launch Fallout4 without modification when
launching with unpatched wine. It looks for 64K of unreserved memory before the
addresses of Fallout4.exe and whichever f4se dll is being loaded for trampoline
buffers.

I see two issues here. The first is that get_free_mem_state_callback is
returning that a block before the exe base overlaps the exe area (ie if exe
base address is 0x14000000000 it will reject a 64K block starting at
0x13FC0000000 as overlapping).

The other issue is that when the f4se dll is being loaded it's being loaded at
a lower address. The code that looks for trampoline buffer space aborts when it
gets to a lowest acceptable address which is the module address minus
0x78000000. For low addresses this wraps back around to a high address.
Switching to loading dlls from top down stops this from happening but I doubt
that's a good approach.

With the two patches I'm about to attach f4se completes initialization and
everything seems to run fine.

-- 
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.