[Bug 43455] New: Jack' s Attic fails to launch due to lack of virtual memory
wine-bugs at winehq.org
wine-bugs at winehq.org
Sat Jul 29 18:29:18 CDT 2017
https://bugs.winehq.org/show_bug.cgi?id=43455
Bug ID: 43455
Summary: Jack's Attic fails to launch due to lack of virtual
memory
Product: Wine
Version: 2.0-rc2
Hardware: x86
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: kernel32
Assignee: wine-bugs at winehq.org
Reporter: z.figura12 at gmail.com
Distribution: ---
Jack's Attic, an old educational game, fails to launch due to a claimed lack of
virtual memory.
The application calls GlobalMemoryStatus, and adds together the reported values
for TotalPageFile and TotalVirtual, then does a signed comparison with 3MB.
However, GlobalMemoryStatus contains code to limit the total virtual memory to
0x7ffdffff, and also contains code to limit the total paged memory to
0x7fffffff *if* the application is detected to be an old binary (just by
comparing version numbers). These, added together, yield 0xfffdfffe, which is
negative and so less than 3MB.
The game works fine on Windows, because the reported virtual memory isn't
limited (and so the addition wraps around and remains positive). This is
Wine-specific code which is included to help other applications work where they
wouldn't on Windows. Unfortunately, it causes this application to fail.
Perhaps a better solution would be to use a registry key?
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