[Bug 35256] New: Skyrim - "Not enough memory to run application" error
wine-bugs at winehq.org
wine-bugs at winehq.org
Sat Dec 28 05:30:00 CST 2013
http://bugs.winehq.org/show_bug.cgi?id=35256
Bug ID: 35256
Summary: Skyrim - "Not enough memory to run application" error
Product: Wine
Version: 1.7.8
Hardware: x86-64
OS: Mac OS X
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: kernel32
Assignee: wine-bugs at winehq.org
Reporter: micferg78 at gmail.com
Classification: Unclassified
Created attachment 47022
--> http://bugs.winehq.org/attachment.cgi?id=47022
Wine identifies 200MB out of 30GB of available userland memory
Occasionally when attempting to run Skyrim (or other memory intensive programs)
through Wine on OS X, a "Memory Error: Not enough memory to run application"
popup will appear and the program will exit.
Simple workarounds: logging out and back in, rebooting.
I believe this is caused by GlobalMemoryStatusEx() in kernel32/heap.c returning
wildly incorrect values (see the attached log for an example from a system with
32GB of memory - most of it available).
On OS X and BSDs, GlobalMemoryStatusEx() still gets the total system memory
(ullTotalPhys) by asking sysctl() for the value of HW_PHYSMEM, which is capped
at 2GB. The available system memory (ullAvailPhys) is determined by asking
sysctl() for HW_USERMEM, which is also apparently 32-bit and overflows
dreadfully. On OS X, Wine temporarily stores both values in an unsigned int.
I recompiled kernel32.dll.so using HW_MEMSIZE in place of HW_PHYSMEM and a
kludged value for ullAvailPhys; Skyrim now runs reliably. The example patch
will also be attached for anyone who can reproduce this issue.
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