[Bug]: external exception 0x80000004 when running program in VM on AMD System

[ewolff]

Version

7.2.4

Host OS Type

Linux

Host OS name + version

Ubuntu 24.04 LTS

Host Architecture

x86

Guest OS Type

Windows

Guest Architecture

x86

Guest OS name + version

Windows 11 25H2

Component

Unspecified

What happened?

When running the FAST PlugIn installer from here , I get a dialog with an external exception 80000004 . This seems to be some problem with AMD CPUs and virtualization that has been fixed for KVM but not for Virtualbox, see https://bugzilla.kernel.org/show_bug.cgi?id=219787#c22 . Further research shows that this error should also occur with other applications.

I tried to search for the exception code 80000004 but got no results for Virtualbox, only for KVM as mentioned. Sorry if I overlooked anything.

Windows 11-2025-11-20-05-52-11.log

How can we reproduce this?

• Use a Windows VM (I assume any version would do) on an AMD host system (I have a AMD Ryzen 9 9955HX 16-Core Processor)
• Download any FAST Plugin from

. The download only shows if you use a browser on Windows. I tried the compressor but also other.

• Start the installation.
• Notice the dialog mentioned above.

Did you upload all of your necessary log files, screenshots, etc.?

• Yes, I've uploaded all pertinent files to this issue.

[AlexanderEichner]

This seems to require a Zen 5 AMD CPU (Ryzen 9xxxx) in order to be reproducible. Unfortunately we don't seem to have a system with such a new CPU available right now.

[ewolff]

This seems to require a Zen 5 AMD CPU (Ryzen 9xxxx) in order to be reproducible. Unfortunately we don't seem to have a system with such a new CPU available right now.

That's unfortunate. Let me know if I can help somehow.

[AlexanderEichner]

Just ordered a CPU, hopefully I can reproduce it when it arrives.

[ewolff]

Great, let me know if I can help. 🙂

Just ordered a CPU, hopefully I can reproduce it when it arrives.

[morvael]

Have the same error on 9800X3D.

edit: in my case it's in Media Monkey installer.

[AlexanderEichner]

I was able to reproduce the issue with the new CPU and implemented a fix internally which is currently under review.

[ewolff]

Great! That was quick! 🙂

[AlexanderEichner]

We uploaded testbuilds for 7.1, 7.2 and trunk containing the fix, see https://www.virtualbox.org/wiki/Testbuilds . Would be great if you could verify it.