Failed to load R0 module when upgrading to 6.1.36 in Ubuntu 22.04

Discussions related to using VirtualBox on Linux hosts.
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mcdoctore
Posts: 2
Joined: 22. Jul 2022, 16:12

Failed to load R0 module when upgrading to 6.1.36 in Ubuntu 22.04

Post by mcdoctore »

Hi,

when upgrading from 6.1.34 to 6.1.36 in Ubuntu 22.04 (kernel 5.15.0-41-generic) I get the same error as in ticket 20904.
I suppose there is some regression.
Someone has a solution for this?

Thx.
scottgus1
Site Moderator
Posts: 20965
Joined: 30. Dec 2009, 20:14
Primary OS: MS Windows 10
VBox Version: PUEL
Guest OSses: Windows, Linux

Re: Failed to load R0 module when upgrading to 6.1.36 in Ubuntu 22.04

Post by scottgus1 »

Please confirm that this is the exact error you saw:
https://www.virtualbox.org/ticket/20904
ticket 20904 wrote:"Failed to load R0 module /usr/lib/virtualbox/VBoxDDR0.r0: Unable to locate imported symbol 'memset' for module 'VBoxDDR0.r0' (VERR_SYMBOL_NOT_FOUND)."
It is beneficial to put all data needed to diagnose in the post you make instead of making folks link here and there and hope they have the correct data.

Please note that other CAPITALIZED_UNDERSCORE_SPACED_WORDS go with "Failed to load R0 module" at times, so we don't know what your Virtualbox problem is, nor do we know if you're running the Ubuntu fork of Virtualbox, which we don't support here, or if you're running official Virtualbox from www.virtualbox.org. Please see Minimum Info Needed for Assistance
javajeep
Posts: 2
Joined: 7. Aug 2021, 19:04

Re: Failed to load R0 module when upgrading to 6.1.36 in Ubuntu 22.04

Post by javajeep »

I tried a few troubleshoot and hacks, but none works. The easiest way to downgrade to VirtualBox 6.1.34
in Centos/RHEL, type # yum downgrade ./VirtualBox-6.1-6.1.34_150636_el8-1.x86_64.rpm
you should be able to do similar thing with different command in Ubuntu
mcdoctore
Posts: 2
Joined: 22. Jul 2022, 16:12

Re: Failed to load R0 module when upgrading to 6.1.36 in Ubuntu 22.04

Post by mcdoctore »

Hi,
Thanks for your answers.
I can confirm it was this error: "Failed to load R0 module /usr/lib/virtualbox/VBoxDDR0.r0: Unable to locate imported symbol 'memset' for module 'VBoxDDR0.r0' (VERR_SYMBOL_NOT_FOUND)."

The problem was actually that de new version of virtualbox changed my USB configuration in all machines from 1.1 to 3.0.

Solution: check the USB config and set it back to 1.1.

Greetz.
scottgus1
Site Moderator
Posts: 20965
Joined: 30. Dec 2009, 20:14
Primary OS: MS Windows 10
VBox Version: PUEL
Guest OSses: Windows, Linux

Re: Failed to load R0 module when upgrading to 6.1.36 in Ubuntu 22.04

Post by scottgus1 »

mcdoctore wrote:new version of virtualbox changed my USB configuration in all machines from 1.1 to 3.0.

Solution: check the USB config and set it back to 1.1.
It seems unusual that a new Virtualbox version would change the VM's configuration like that. If it really happened that way then that'd be quite a bug.

FWIW this solution indicates that you don't have the correct version or any Extension Pack installed on the host. The EP is required for USB 2 and 3.
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