ULM unrecoverable error: 0x5

[dakshink]

Starting any VM in VMWare gives me the following error:

VMware Player unrecoverable error: (vcpu-0)

ULM: fatal error: 0x5.

I do have Hyper-V enabled because I need to use WSL 2 and VMWare side by side, but that shouldn't be a problem according to VMWare

What could be the problem?

(Attached: vmware.log and the output of "vm-support")

[scott28tt]

@dakshink 

Host OS version?

Player version?

[dakshink]

@scott28tt 

VMWare Workstation 16 Player - version 16.1.0 build-17198959

Host OS is Windows 10, latest Insider build 20277.1

[wila]

Hi,

Most likely caused by running on the insider build.
--
Wil

[dakshink]

Fair enough, I'll check on a friend's machine running stable Windows and report back in a couple days.

[arllk]

I also have the same problem since the Build 20277

[Kalamatee-AROS]

It actually stopped working in build 20270 - prior to that there has been no problem running in insider builds.

What I have found -:

VM configured with >1 processor -> it wont power on at all and gives the ULM error 0x5

VM configured with 1 processor -> powers on and starts booting but crashes when the USB controller is accessed with same ULM 0x5 error

VM with no USB and 1 processor  -> appears to boot.

[aymanpatel]

Cannot run Ubuntu 20.10 for Windows buyild 20279.fe_releasae.201209-1322

[scott28tt]

@aymanpatel 

Same error as at the top of this thread, or something different?

[aymanpatel]

Yes same error