Guru Meditation when using more than 1 CPU + EFI (VINF_EM_TRIPLE_FAULT)

[Tommy Parker]

When I use EFI + CPU greater than 1 the client crashes with Guru Meditation (VINF_EM_TRIPLE_FAULT). From version 6.1.0 the issue starts to occur and is still present in version 6.1.4. In version 6.0.18- the error didnt't occur once.

I made a lot of tests so I claim the trigger for this error is EFI enabled + vCPU > 1.

This is also discussed in forum where I attached log files directly after crash in version 6.1.0. Do you need log files for 6.0.18 (latest working version) and 6.1.4 (latest failing version)?

​https://forums.virtualbox.org/viewtopic.php?f=6&t=96937

[Tommy Parker]

I forgot to say: In version 6.1.4 with EFI enabled and only 1 CPU the error didn't occur once.

The error occured mostly while booting into OS but also while restoring state or saving state of machine.

[aeichner]

Please provide the appropriate VBox.log files.

[kotenok2000]

The logs are uploaded at ​https://forums.virtualbox.org/viewtopic.php?f=6&t=96937

[DiDiDi]

I am facing a similar/same problem. In my case the it happens on startup only, I have tried changing just about any option, but I need to work in EFI mode. It is, however, intermittent, it happens just on about every other startup. When it fails, it usually works the second time.

[DiDiDi]

Failed run (GuruMeditation) - VINF_EM_TRIPLE_FAULT

[Tommy Parker]

Logs for v6.0.18 (latest working), v6.1.0 (Guru error), v6.1.4 (Guru error)

[Tommy Parker]

Just wanted to sum up a few things:

When I use EFI + CPU greater than 1 the client crashes with Guru Meditation (VINF_EM_TRIPLE_FAULT). From version 6.1.0 the issue starts to occur and is still present in version 6.1.4. In version 6.0.18- the error didnt't occur once.

This is still true. I can confirm what DiDiDi says. Most of the time it occurs while booting sometimes it works sometimes not.

I want to add another factor in the equation. I noticed that switching from chipset ICH9 to P2X3 while vCPU > 1 and EFI enabled the machine runs stable so the correlation must be between vCPU > 1, EFI enabled and chipset=ICH9.

I also added an attachment with 3 Logs (2 old, which I already attached in forum [v6.1.0, v6.1.4 both with Guru error] and 1 new [v6.0.18 with no Guru error]) so they are at one place.

[Tommy Parker]

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