VBoxClient Error on Ubuntu 19.10

[MorseCode65]

I am getting the following errors every 5 seconds on Ubuntu 19.10 running within VirtualBox Version 6.1.4 r136177 (Qt5.6.3) on a Mac 10.15.3 (19D76)

I reinstalled the Guest Additions and it is still happening.

Any ideas what I can do to resolve?

Config
Uname -a: Linux <host> 5.3.0-42-generic #34-Ubuntu SMP Fri Feb 28 05:49:40 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

Mar 20 20:34:46 mmp-mail /usr/lib/gdm3/gdm-x-session[10289]: (II) modeset(0): EDID vendor "VBX", prod id 0
Mar 20 20:34:46 mmp-mail /usr/lib/gdm3/gdm-x-session[10289]: (II) modeset(0): DDCModeFromDetailedTiming: 1264x875 Warning: We only handle separate sync.
Mar 20 20:34:46 mmp-mail /usr/lib/gdm3/gdm-x-session[10289]: (II) modeset(0): Using hsync ranges from config file
Mar 20 20:34:46 mmp-mail /usr/lib/gdm3/gdm-x-session[10289]: (II) modeset(0): Using vrefresh ranges from config file
Mar 20 20:34:46 mmp-mail kernel: [221117.888709] VBoxClient[23692]: segfault at 968 ip 00007f1d1314db21 sp 00007ffda883eba0 error 4 in libX11.so.6.3.0[7f1d13131000+8b000]
Mar 20 20:34:46 mmp-mail kernel: [221117.888714] Code: 56 49 89 f6 41 55 49 89 d5 41 54 49 89 cc 55 48 89 fd 53 4c 89 c3 48 83 ec 38 64 48 8b 04 25 28 00 00 00 48 89 44 24 28 31 c0 <48> 8b 87 68 09 00 00 48 85 c0 74 02 ff 10 ba 08 00 00 00 be 62 00

[MorseCode65]

Ping - Anyone have any advice?

[scottgus1]

Please zip and post a guest vbox.log, using the forum's Upload Attachment tab.

[MorseCode65]

Please zip and post a guest vbox.log, using the forum's Upload Attachment tab.

Thanks for your help.

Where is the guest box.log? I couldn't find vbox.log on the guest using locate after an updatedb. I attached the VBox.log from the host for the guest.

I did find a vboxadd-install.log and Xbox-setup.log

root@host:/var/log# more vboxadd-install.log
VirtualBox Guest Additions: Starting.
VirtualBox Guest Additions: Building the VirtualBox Guest Additions kernel
modules. This may take a while.
VirtualBox Guest Additions: To build modules for other installed kernels, run
VirtualBox Guest Additions: /sbin/rcvboxadd quicksetup <version>
VirtualBox Guest Additions: or
VirtualBox Guest Additions: /sbin/rcvboxadd quicksetup all
VirtualBox Guest Additions: Building the modules for kernel 5.3.0-42-generic.
update-initramfs: Generating /boot/initrd.img-5.3.0-42-generic
VirtualBox Guest Additions: Running kernel modules will not be replaced until
the system is restarted


root@host:/var/log# more vboxadd-setup.log
Building the main Guest Additions 6.1.4 module for kernel 5.3.0-42-generic.
Building the shared folder support module.
Building the graphics driver module.

[facboy]

afaik this is a known issue with 6.1.4 guest additions: viewtopic.php?f=3&t=97051

there are patched verions in eg Fedora, not sure there is a patched .deb available.

[scottgus1]

@MorseCode65, I see from the log you are using the official Guest Additions, Good!

The link 'facboy' provided will take you to a Bugtracker ticket that has a test build of Guest Additions to try.

not sure there is a patched .deb available.

If the .deb refers to a file provided by the Linux distro, it is always better, from a forum support viewpoint, to use official Virtualbox and GAs from Virtualbox rather than the forked copies provided by the Linux distros. The forks might change things to the forum doesn't support the forks.

[MorseCode65]

@MorseCode65, I see from the log you are using the official Guest Additions, Good!

The link 'facboy' provided will take you to a Bugtracker ticket that has a test build of Guest Additions to try.

not sure there is a patched .deb available.

If the .deb refers to a file provided by the Linux distro, it is always better, from a forum support viewpoint, to use official Virtualbox and GAs from Virtualbox rather than the forked copies provided by the Linux distros. The forks might change things to the forum doesn't support the forks.

I receive Guest Additions directly from Oracle Virtual Box. I believe it is part of VBoxLinuxAdditions.run in the VBox_GAs_6.1.4 ISO.

Here is the patch.

https://www.virtualbox.org/attachment/t ... rash.patch

When is a release scheduled with the patch or how can I get it?