open.mp forum - Questions and Suggestions

backtrace

Mon, 09 Mar 2026 06:32:49 +0000

Code:
[2026-03-09T13:23:01+0700] [Info] [debug] Long callback execution detected (hang or performance issue)

[2026-03-09T13:23:01+0700] [Info] [debug] AMX backtrace:

[2026-03-09T13:23:01+0700] [Info] [debug] #0 00005f70 in ?? (0, 21, 3243208, 1598650688) in 

[2026-03-09T13:23:01+0700] [Info] [debug] #1 00006058 in ?? (0, 0, 3243240, 1598650688) in 

[2026-03-09T13:23:01+0700] [Info] [debug] #2 00009370 in ?? () in 

[2026-03-09T13:23:01+0700] [Info] [debug] #3 00002de8 in public OnRuntimeError () in

Quote:Please help me this callback is not in my gm, the problem appears when I want to install crashdetect

IPv6 support

Sun, 01 Feb 2026 19:01:33 +0000

Ahoy, hope you doing fine.
Many folks are only capable of having public facing IPv6 prefixes due to CGNAT, or any other kind of NATting in private address space.
Therefore IPv6 support would be a nice thing to have, due to increasing use of IPv6 for services.

BR,

The size of the output amx file

Mon, 01 Dec 2025 19:07:38 +0000

Hello everyone. I've encountered a situation where, when compiling an empty mod (containing only #include and main(){}) using qawno and a custom bat file, the output amx files have different sizes.

bat.amx - 1389 bytes
qawno.amx - 1420 bytes

Is this difference normal, or have I made a mistake in configuring the compiler command for the bat file?

bat:

Code:
compiler\pawncc.exe -;+ -(+ -\ -Z- "-isource/%name%" "-rsource/%name%" "-icompiler/include" -d3 -t4 "-orelease/gamemodes/%name%" "source/%name%.pwn"

qawno:

Code:
./pawncc -;+ -(+ -\ -Z- "-i%p/%o" "-r%p/%o" "-i%q/include" -d3 -t4 "-o%p/%o" "%p/%i"

May the experts forgive me, because this question may be very easy, but I'm new to this and I want to understand everything.
Thank you.

samp-cef

Wed, 18 Jun 2025 11:36:13 +0000

Hello everyone. I have some difficulties with rendering a web page via CEF inside the game. The thing is that I use white colors in the interfaces, but do not use the background (transparent). And from somewhere artifacts appear in the form of a black outline (1-3 pixels) around white elements. What could this be connected with? With the layout or the CEF plugin?

Manual sorting of servers in the launcher.

Sun, 11 May 2025 10:21:55 +0000

When you have too many servers in your server list, it becomes inconvenient to search for the server you want. It would be nice to have a manual sorting that would allow you to put frequently visited servers at the top of the list.

Bahnhof internet services should sponsor open-mp

Sat, 10 May 2025 18:29:39 +0000

https://bahnhof.se/ is a swedish internet company, they might want to sponsor sa-mp or open-mp with some servers.
They sponsor some other sites as well, they might gain customers if they sponsor some gaming servers for open-mp and the site.

I think y-less should talk to some other companies as well that has money, since GTA SA still active with open-mp :)

Sponsors and Donations

Sun, 20 Apr 2025 05:48:26 +0000

Open multiplayer needs sponsors for the website servers, the forums and donations so the project can succeed.

Y-less should talk to people so they can sponsor him with servers and donations on the main page, since Open multiplayer will replace sa-mp soon, and might need lots of donations and servers so you can host websites and servers so the game gets more attention :)

GTA San andreas is awesome, in the future there should be updates to the graphics as well ingame, dunno if Open MP, can improve the graphics on the game as well, so we gain more users, everyone care for gaming in todays era.

I know Kalcor left the building but

Wed, 16 Apr 2025 09:25:16 +0000

But when will sa-mp update it's client? I know open-mp is backwards compitable and such, but this site is not registered by kalcor:

https://www.sa-mp.mp/

There needs to be more updates and such every year or so.

Website too damn slow!

Tue, 18 Feb 2025 16:38:38 +0000

Why?
https://www.open.mp/docs/ literally loads after 10-15 seconds after some time (on random moments). Is this noted or no one noticed yet?

HWID BAN

Fri, 07 Feb 2025 18:23:20 +0000

I'm writing to inquire about the possibility of implementing a Hardware ID (HWID) based ban system on the open.mp platform. Many players, including myself, have expressed concerns about the prevalence of cheating in GTA San Andreas multiplayer.

HWID bans have proven effective in other online games to combat cheaters who bypass traditional IP or account bans. Are there any plans to introduce such a system in the future to enhance the integrity of the game and create a fairer environment for all players?

Is it possible in open.mp?

Tue, 04 Feb 2025 09:17:51 +0000

Is it possible in open.mp?to make all skins with the same skin rotation? You know, skins like 1, 269,270,271 have a better[faster] rotation and in DM these skins are better for players.

Help please

Wed, 29 Jan 2025 21:35:08 +0000

Good afternoon, friends, there was a problem, I decided to build an omp server on my own and ran into this problem.
CMAKE - 3.31
Conan - 1.57.0
Python - 3.13.1

Error's

Code:
cmake .. -A Win32 -T ClangCL

-- Building for: NMake Makefiles

CMake Error at CMakeLists.txt:4 (project):

  Generator

    NMake Makefiles

  does not support platform specification, but platform

    Win32

  was specified.

-- Configuring incomplete, errors occurred!

Code:
---

events:

  -

    kind: "message-v1"

    backtrace:

      - "C:/Program Files/CMake/share/cmake-3.31/Modules/CMakeDetermineSystem.cmake:205 (message)"

      - "CMakeLists.txt:4 (project)"

    message: |

      The system is: Windows - 10.0.19045 - AMD64

...

0.3.7 and 0.3DL

Sun, 26 Jan 2025 18:46:45 +0000

If I'm correct, open.mp launcher supports connecting to both 0.3DL and 0.3.7 servers. Do you need both versions installed into separate GTA San Andreas folders for this to work properly? Do you need SAMP installed at all for the open.mp launcher to do its thing?

connection logging

Sat, 25 Jan 2025 02:05:54 +0000

Hello everyone!
config.json - "logging":

Code:
"log_connection_messages": false

Why do I still get these messages in the console?

Code:
[connection] incoming connection: 127.0.0.1:54447 id: 0

[join] Player has joined the server (0:127.0.0.1)

[part] Player has left the server (0:1)

How do I turn them off?

Toggleable HUD / Underground MP changes

Wed, 01 Jan 2025 21:52:11 +0000

So, my main suggestion was that it would be very nice to be able to toggle the HUD (cash, health, weapon, minimap, etc). Underground Multiplayer has done this in the past as an extension to SA-MP as well.

But then I was thinking, while we're at it, why not look into all the changes that Underground MP did? Other changes like being able to give cars any color you want are pretty amazing too. Has there ever been any communication from the Open MP team with the former Underground MP dev team about this?

It would/could break compatibility with SA-MP clients, but this could be a config setting like 0.3.7 compatibility, right?