[Release] MuServer multicore processor fix

[Damian]

Hello,

I was trying to start my test server on PC with i7 processor with 12 logical cores and some of the muserver apps were crashing (eg. JoinServer, Gameserver). I did some research and implemented a workaround for this issue.

// dllmain.cpp : Defines the entry point for the DLL application.
#include "stdafx.h"
#include "detours.h"

#pragma comment( lib, "detours.lib" )

void (WINAPI *_getSystemInfo)(LPSYSTEM_INFO) = GetSystemInfo;

void WINAPI _GetSystemInfo(__out LPSYSTEM_INFO lpSystemInfo) {
    _getSystemInfo(lpSystemInfo);

    if (lpSystemInfo->dwNumberOfProcessors > 8) {
        lpSystemInfo->dwNumberOfProcessors = 8;
    }
}

bool APIENTRY DllMain(HINSTANCE hDll, DWORD dwReason, LPVOID lpReserved)
{
    switch(dwReason)
    {
        case DLL_PROCESS_ATTACH:
            DetourTransactionBegin();
            DetourUpdateThread(GetCurrentThread());
            DetourAttach(&(PVOID&)_getSystemInfo, _GetSystemInfo);
            DetourTransactionCommit();
            break;
        case DLL_PROCESS_DETACH:
            DetourTransactionBegin();
            DetourUpdateThread(GetCurrentThread());
            DetourDetach(&(PVOID&)_getSystemInfo, _GetSystemInfo);
            DetourTransactionCommit();
        break;
    }
    return true;
}

The idea is to limit max number of cores to 8. That's necessary because of the limitation of 16 threads in GS and JS.

Use DLib Attacher and attach MaxCpuLimit.dll to JoinServer and GameServer files.

 

[forbannet]

I will try it today, thanks for this fix, since a lot of people are getting CPU's with 8+ cores nowadays. (Please, let's not make the distinction between threads/real cores/logical cores, etc)...


Edit: Tried, worked like a charm, thank you! Cool release, easy to use!

 

[BITO]

Hey m8
First of all thanks for release!!
Can you help me a bit
In Procedure name: what i put? (dlibattacher)

thanks in advance

 

[Damian]

Hey m8
First of all thanks for release!!
Can you help me a bit
In Procedure name: what i put? (dlibattacher)

thanks in advance

Keep it blank.

 

[IsaacSabir]

Thank you for the great tool (DLL)

I tried to attach it to Joinserver and it worked perfectly, but when I try to attach it to Gameserver it's not working.

 

[Damian]

Thank you for the great tool (DLL)

I tried to attach it to Joinserver and it worked perfectly, but when I try to attach it to Gameserver it's not working.

View attachment 5150

View attachment 5151

This is really strange. You can try to hook the dll manually using ollydbg or any other tool. Or you can ask @DarkMaster. He is an expert!

 

[IsaacSabir]

This is really strange. You can try to hook the dll manually using ollydbg or any other tool. Or you can ask @DarkMaster. He is an expert!

Now all is fine I used TLS Callback instead of Entrypoint and it worked, thanks again.

 

[fukulll2007]

thank you for releasing，i will try it

 

[fukulll2007]

I am using 13600KF with 14 cores and 20 threads. How can I increase the limit to 20 threads