VirtualBox

Opened 4 years ago

Last modified 4 years ago

#20154 new defect

Segmentation fault when running 5.10.x kernel as guest

Reported by: Alex Kempshall Owned by:
Component: guest additions Version: VirtualBox 6.1.18
Keywords: segmentation fault Cc:
Guest type: Linux Host type: Linux

Description

Running an up to date Ubuntu 20.04 as a guest upgraded to use the 5.10.9 Linux kernel using the instructions contained here as a guide.

Installed VBoxGuestAdditions-6.1.18 which installed successfully.

Rebooted. Reboot fails with segmentation fault.

Attachments (1)

SegmentationFault.png (16.6 KB ) - added by Alex Kempshall 4 years ago.
Contains details of the segmenation fault

Download all attachments as: .zip

Change History (7)

by Alex Kempshall, 4 years ago

Attachment: SegmentationFault.png added

Contains details of the segmenation fault

comment:1 by zardoz, 4 years ago

Same issue with Fedora 32 and 5.10.x kernel. No issues with 5.9.x kernels.

in reply to:  1 comment:2 by galitsyn, 4 years ago

Replying to zardoz:

Same issue with Fedora 32 and 5.10.x kernel. No issues with 5.9.x kernels.

Could you please provide complete dmesg output?

comment:3 by Alex Kempshall, 4 years ago

I've moved on since my original post. I now seem to have something usable with some workarounds.

My host is using the 4.4.240 kernel using Version 6.1.19 r142995 (Qt5.6.1)

On the guests I'm using the 5.10.25 kernel with VBoxGuestAdditions_6.1.19-142994.iso

Moving in the right direction the only two outstanding problems I have are

Without guest additions when i drop down to level 3 I get extra line feeds after most commands i.e ps -ef will always give me a extra 6 or so blank lines. Other commands the output just scrolls off the top of the screen. Bit like if i held the Enter/Caraige Return keys for too long.

I couldn't execute scripts from shared folders got this error

-su: /usr/local/aikbin/build_packages.ksh: cannot execute [Invalid argument]

This was resolved by using a different Graphics Controller. I've settled on VMSVGA.

Interestingly I was getting Segmentation errors when using one of the Graphic Controllers, but only if using GuestAdditions. It was fine with one of the other Graphic Controllers.

At the moment I'm a bit confused as to what's going on other than having got workarounds for most of the problems.

I need to do another round of testing with the latest test builds. I notice that 143492/143491 are now available. I'm sure that 6.1.19 is just around the corner.

comment:4 by Alex Kempshall, 4 years ago

Running 6.1.20 host with 6.1.20 GuestAdditions. No more segmentation faults.

in reply to:  4 ; comment:5 by galitsyn, 4 years ago

Replying to AlexKemp:

The issue with shared folders should be fixed in 6.1.22. Could you please give it a try?

in reply to:  5 comment:6 by Alex Kempshall, 4 years ago

Replying to galitsyn:

Replying to AlexKemp:

The issue with shared folders should be fixed in 6.1.22. Could you please give it a try?

Can confirm it's fixed for me in 6.1.22.

Thanks

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