Subject: Re: Wine & NetBSD?
To: Chuck Cranor , Chuck Silvers <>
From: Bang Jun-Young <>
List: tech-kern
Date: 11/20/2001 15:38:13
On Tue, Nov 20, 2001 at 03:07:39PM +0900, Bang Jun-Young wrote:
> Because MAP_FIXED may cause Wine to crash. If there were loaded two 
> or more EXE/DLL's that have the same ImageBase (base address) for one
> process and at least two of them were stripped, Wine wouldn't be able
> to handle them properly. I think this is a (very) rare case, but
> that's Wine maintainers are afraid of.

Ooops, I'm sorry. This is plain wrong. Wine wouldn't be able to
handle them regardless of MAP_FIXED in that case. 

The problem occurs, for example, if there's a file (which may be
a DLL or a data) was mmapped at 0x800000 and Wine attempted to mmap
a stripped DLL that has 0x800000 or so as ImageBase with MAP_FIXED. 
New mapping would zap the previous one and this would lead to crash.


Bang Jun-Young <>