virtualbox.org

Hi members, Im using Virtualbox Versio 2.2.4, host is Vista ultimate x64, and guest is XP Pro. Well, i have been testing my vm's 3d graphics, I Want to run a game, and I did it, the game runs great ( Its not necessary to run great but ok hehe ), but the problem is, after a couple hours ( or minutes) i just get a Guru Meditation Error, and the Vm is turned off, I just want to keep the game running for long time (stability over quality and performance) but I cant, I tried to change configuration...guest configuration... the Guru Meditation doesnt show me why the error ocurr. I suspect that is something about 3d acceleration...

I tested many things whitout sucess, so I need ur help.

ah, Can I ask What is ACPI option? Thx all

Waiting for reply

Welcome to the forum jonny,

Usually the GURU mediation is due to a memory problem. Giving more that 50% of the main memory to the guest, running intense video as I assume your game is doing and causing the memory to become full and leaving nothing else to be used by the program. You can try turning the guest memory up/down some and see if this helps. Other than that you will need to supply the exact guest settings and memory available on the host before we can tell. There is also a log that VBox keeps in the program GUI under machine that you can read after the crash and it may detail what is going on.

ACPI = http://en.wikipedia.org/wiki/Advanced_C ... _Interface Google is where it is at to find things like this.

Well, I'll Try to add memory to the Guest. The game doesnt need much memory and 3d performance ( Its Mu Online ), my Guest has 256 of memory and 128 of vga memory

My Host has 4G of ram, 512M of video ( Geforce 8600 gt ) and the Core2Quad processor ( Q6600 )

I tried to check virtual memory when running the game and I didnt see anything wrong, I dunno how the VGA memory works ( VGA not enough? ).

Really what you said about the memory makes sense, cause the error is not immediately, like something lacking after a couple hours.

The lack of memory for the guest also applies to the video's memory? Thx

It's not so much the memory that the game needs as it is how much does the Guest need to play this game. Keep in mind that the 512 you have allocated has to run the guest and the game. If you set it to a low figure say 512 it may (due to a memory leak) it will fail sooner. Try setting it at 1024 Meg and see if it will run longer. Then you can trouble shoot it further after that.

You may wish to test 3.0.0beta1, I imagine 3d acceleration support for OpenGL (I assume that's what the game uses) may have had bug fixes applied to it.

I'm pretty sure video memory allocated to a VM comes from your RAM, not from your own video memory (since everything is emulated in the VM, including the video card). However with hardware acceleration it's possible that the amount of video memory wouldn't matter and that it would be able to use your host's video memory... I don't know enough about how it works.

You are giving a LOT of video memory, I checked the game's requirements and it seems so old it doesn't have a video memory requirement listing! The cards it recommends have 12mb and 16mb of video memory. A value of 32mb of video memory should be more than adequate.

BTW what version of XP are you running, 32-bit or 64-bit? Does the guru meditation error occur when the VM is NOT running the game (try leaving it on and see)? Does it seem to happen after the VM has been on for a certain period of time, or you've been playing the game for a certain period, or randomly? Do you have problems with other VMs, especially with the same guest OS or stored on the same drive? Are the guest additions on the VM up to date? Does the problem occur when hardware acceleration is turned off (the game will be extremely slow but if it's OpenGL it should run)?

It is not hard to find information about ACPI: http://tinyurl.com/nngwsx

I do not think it is relevant to your problem.

Perryg: Running out of memory in the guest would not cause a problem with VirtualBox. VirtualBox can't even tell how much memory the VM is using... as far as it's concerned all of it is always in use.

Not to mention the game has a minimum requirement of 32mb and a recommended one of 64. Unless some other app is eating up memory, one could safely set that VM's memory use to 256mb I think, especially if you were to go and shut down unused services on the XP VM. But with 512 memory is definitely not the issue.

@ The MAZZTer

Can you give me the basis for this statement "Running out of memory in the guest would not cause a problem with VirtualBox"?
What is your opinion for the Guru Mediation error?

Guys, I think I found the cause of this issue ( at least the VM is running for 4h already and no problems, usually it gets error after 1 to 2 hours)

the problem ( I think) was the guest system, it was 32 BITS winxp, I had problems whit 32 bits system already with this game ( with HOST machine) and when i changed to 64 BITS system the error stoped, so, why would be different whit VM? hehe

Well, I will test more 5h and see how it goes....

Well guys, really i fixed the problem, It was what i said, problem whit win xp 32 BITS...

Thx all for help me and give me informations about Virtual Box!!