segfault on arch linux due to missing libdl.so

[thorstenhirsch]

There's a thread in the arch forum with lots of details, see: ​https://bbs.archlinux.org/viewtopic.php?id=299392

Summary: VirtualBox 7.1.x seems to be linked (transitively?) against libdl.so, which is missing on modern Linux installations. As a workaround users can create the following symlink:

/usr/lib/virtualbox/libdl.so -> /usr/lib/libdl.so.2

But the real solution would be that Oracle fixes the build.

P.S.: Not sure about the necessity of a similar libpthread.so symlink, which is also mentioned in the linked thread.

[Trevor Hemsley]

Also broken on Fedora 40 and fixed by running

cd /usr/lib64/virtualbox
ln -s ../libpthread.so.0 libpthread.so
ln -s ../libdl.so.2 libdl.so

Tried with just the libdl.so symlink first but still failed until the libpthread one was created too.

[thorstenhirsch]

Problem stays the same in VirtualBox 7.1.4

[galitsyn]

Hi thorstenhirsch,

Do you see this issue with the official build from Downloads page? We don't ship package for Arch Linux (you could try "All distributions" .run version though), but with Fedora package I do not see the problem you are reporting.

If VirtualBox package is built by your distribution, please consider filing a report to Arch bug tracker.

[mmmmmmmax]

Same issue with Debian 12. I get the segfault until I add the symlinks from comment 1. (Then I get another error related to the kernel module, but that's a different issue.)

I suggest that the issue title is changed to show that the problem is not only on Arch.

[galitsyn]

Hi mmmmmmmax,

Which package have you installed?

[davedeaven]

This also occurs on OpenSuSE LEAP 15.6, virtualbox 7.1.4-lp156.2.4.1 and is resolved by adding explicit symlinks in /usr/lib/virtualbox:

/usr/lib/virtualbox/libdl.so -> /lib64/libdl.so.2
/usr/lib/virtualbox/libpthread.so -> /lib64/libpthread.so.0

[bq]

I also have the same problem on Ubuntu 22.04.5 and VB 7.1.4 installed from the VB Repo from https://www.virtualbox.org/wiki/Linux_Downloads. All patches up to date. Slightly different paths required:

/usr/lib/virtualbox/libpthread.so -> /usr/lib/x86_64-linux-gnu/libpthread.so.0
/usr/lib/virtualbox/libdl.so -> /usr/lib/x86_64-linux-gnu/libdl.so.2

libpthread link is required for me.