topic Re: ULM unrecoverable error: 0x5 in VMware Workstation Player Discussions

ULM unrecoverable error: 0x5

dakshink — Mon, 14 Dec 2020 06:09:12 GMT

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 — Mon, 14 Dec 2020 08:53:51 GMT

Host OS version?

Player version?

dakshink — Mon, 14 Dec 2020 09:44:18 GMT

VMWare Workstation 16 Player - version 16.1.0 build-17198959

Host OS is Windows 10, latest Insider build 20277.1

wila — Mon, 14 Dec 2020 12:19:45 GMT

Hi,

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

dakshink — Mon, 14 Dec 2020 12:57:50 GMT

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

arllk — Tue, 15 Dec 2020 07:03:03 GMT

I also have the same problem since the Build 20277

Kalamatee-AROS — Thu, 17 Dec 2020 01:26:26 GMT

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 — Mon, 21 Dec 2020 15:48:18 GMT

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

scott28tt — Mon, 21 Dec 2020 16:37:16 GMT

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

aymanpatel — Mon, 21 Dec 2020 17:10:37 GMT

Yes same error