RESOLVED virtualbox segfault ANY kind of reliable VM needed badly

wub · 2025-08-22 10:12:59

Hi All. I am in a bit of a bind.

TL;DR.
Virtualbox was working just fine yesterday. I had 2 VMs running on a NAT network, communicating, pinging, and ncatting each other just fine. I had set up my shortcuts and preferences in the virtualbox machine manager.

On booting arch today, attempting to open virtualbox machine manager, I cannot. When trying to run it from terminal ($ virtualbox), it returns:

    $ virtualbox
    Segmentation fault         (core dumped) virtualbox

Interestingly, can run as

    $ sudo virtualbox

And the VM manager appears.
However, I don't WANT to run this with root privileges, especially as it isn't and should be needed.

I have tried some LLM advice, including the obvious possible fix of removing vbox with:

    $ pacman -Rns virtualbox

Which I didn't really want to do, as I probably lost my configs in the process, but I am desperate to get this, or ANY VM software (that has NAT networking) working RELIABLY.

Preferably something that has a head/GUI, as headless may be too much for me just now. However, if it is not major-league difficult, I am defintely open to a reliable headless setup that just runs on terminal emulators (and this would be my general preference in the future).

eg.
terminal 1 = pentest machine terminal 2 = machine being tested

More detail:

I am a new arch user.
I have been desperately trying to get some VM software up and running (RELIABLY. Did I mention reliably?).
I was initially trying to avoid virtualbox (because ORACLE), but at this point, I really don't care, because
after attempting to install and run:

incus I have made an arch forum post about paradoxical storage pool issues with this. I tried for probably the best part of 4 or 5 days to get this up and running, until my eyes bled. Just couldn't. It looks and sounds fantastic in the documentation, but I can't make it work.
I followed both the official doc, and the arch wiki doc on incus.
virtualbox initially gave me some kind of kernel driver error or something. Wishing to try something else, I moved on quickly to....
libvirt / qemu / kvm
using guides such as:
https://wiki.archlinux.org/title/Libvirt
https://github.com/zxtxz33/ZedSecLabz-Q … /README.md
https://www.libvirt.org/docs.html

...and many others.
Spent a lot of time on this as well.
This might have been a bit over my head, but I also just felt the GUI options in virt-manager for libvirt/qemu/KVM to be a bit lacking or unclear.

Learning the headless version would be great, but at this point, my time is very tight, as I am doing this for study at the moment.

I then returned to trying virtualbox, and it worked perfectly this time, and the "kernel driver error" seemed to be fixed. I have no idea how or why. Possibly installing something else cured some kind of missing dependency problem. It worked fine for several days, including yesterday.... until today. Now I get this segfault error.

At the moment, I would just love to get virtualbox working reliably, and get the cure for this segfault, as this is what is used in my course of study.

Apologies if too verbose. Stressing out a bit.

Last edited by wub (2025-08-31 22:23:34)

Lone_Wolf · 2025-08-22 10:23:20

Check your /var/log/pacman.log to see what changed in those 2 days since things worked.

Long shot : did you upgrade virtualbox from 7.1.x to 7.2.x ?

wub · 2025-08-22 11:20:11

Hi @Lone_Wolf

Thank you so much for your response.

Long shot : did you upgrade virtualbox from 7.1.x to 7.2.x ?

Not a long shot. You are on the money.
I run $ pacman -Syu first thing after every boot for security upgrades.
So, yes:

    virtualbox 7.2.0-1 [installed]

Check your /var/log/pacman.log to see what changed in those 2 days since things worked.

$ less /var/log/pacman.log | grep -i virtualbox
[2025-08-14T03:39:55+0000] [PACMAN] Running 'pacman -Sv virtualbox virtualbox-guest-utils'
[2025-08-14T03:42:03+0000] [ALPM] installed virtualbox-host-modules-arch (7.1.12-5)
[2025-08-14T03:42:04+0000] [ALPM] installed virtualbox (7.1.12-1)
[2025-08-14T03:42:04+0000] [ALPM] installed virtualbox-guest-utils (7.1.12-1)
[2025-08-16T08:01:21+0000] [ALPM] upgraded virtualbox-host-modules-arch (7.1.12-5 -> 7.2.0-1)
[2025-08-16T08:01:22+0000] [ALPM] upgraded virtualbox (7.1.12-1 -> 7.2.0-1)
[2025-08-16T08:01:22+0000] [ALPM] upgraded virtualbox-guest-utils (7.1.12-1 -> 7.2.0-1)
[2025-08-16T13:44:03+0000] [PACMAN] Running 'pacman -S virtualbox-guest-iso'
[2025-08-16T13:44:18+0000] [ALPM] installed virtualbox-guest-iso (7.2.0-1)
[2025-08-16T13:44:18+0000] [ALPM-SCRIPTLET] ===> virtualbox-guest-iso post install message:
[2025-08-16T13:44:18+0000] [ALPM-SCRIPTLET] ===> on www.virtualbox.org with Arch Linux has been granted by
[2025-08-16T13:44:18+0000] [ALPM-SCRIPTLET] ===> the VirtualBox Personal Use and Evaluation License (PUEL)
[2025-08-16T13:44:18+0000] [ALPM-SCRIPTLET] ===> which can be found here: http://virtualbox.org/wiki/VirtualBox_PUEL
[2025-08-19T01:35:42+0000] [ALPM] upgraded virtualbox-host-modules-arch (7.2.0-1 -> 7.2.0-2)
[2025-08-22T08:08:16+0000] [PACMAN] Running 'pacman -R virtualbox'
[2025-08-22T08:08:51+0000] [PACMAN] Running 'pacman -S virtualbox'
[2025-08-22T08:08:54+0000] [ALPM] reinstalled virtualbox (7.2.0-1)
[2025-08-22T08:22:37+0000] [PACMAN] Running 'pacman -Rns virtualbox virtualbox-host-dkms'
[2025-08-22T08:22:44+0000] [PACMAN] Running 'pacman -Rns virtualbox'
[2025-08-22T08:24:14+0000] [ALPM] removed virtualbox (7.2.0-1)
[2025-08-22T08:24:14+0000] [ALPM] removed virtualbox-host-modules-arch (7.2.0-2)
[2025-08-22T08:24:37+0000] [PACMAN] Running 'pacman -S virtualbox virtualbox-host-dkms'
[2025-08-22T08:24:45+0000] [ALPM] installed virtualbox-host-dkms (7.2.0-1)
[2025-08-22T08:24:46+0000] [ALPM] installed virtualbox (7.2.0-1)

Yep, there has been a version upgrade, and some messing around by me trying to fix this.

I am embarrassed to say, I have never done a package downgrade.
I don't even know how to do this (and don't know if this is what you would suggest).
I can learn of course, no problem, and will take any suggested documentation for how to.
I guess this is what I want?

https://wiki.archlinux.org/title/Downgrading_packages

If I do downgrade, but then run $ pacman -Syu sometime afterwards, won't it just "upgrade" (ie. break) again?
And if I downgrade, is there a chance of some other problems related to downgrading? (possibly dependency issues etc.)

Last edited by wub (2025-08-22 13:12:00)

Lone_Wolf · 2025-08-22 16:43:00

Yes, downgrading was indeed the idea.

Caveats :
Only use downgrade for isolated packages
The kernel modules that come with vbox need to be (re-)built against every installed kernel, use their dkms packages.
All virtualbox packages you have installed need to be of the same version.

After the downgrade, don't run pacman -Syu, test first.
Once you're certain the downgrade solves your issue :
add all packages you downgraded to the IgnorePkg line in /etc/pacman.conf and uncomment that line.

run pacman -Syu and you'll see warnings about there being newer versions.

wub · 2025-08-22 23:33:57

Thanks @Lone_Wolf

1) The kernel modules that come with vbox need to be (re-)built against every installed kernel, use their dkms packages.
2) All virtualbox packages you have installed need to be of the same version.

How do I do this? Can you elaborate on the procedure for (1) and (2) (I am a dumb machine).
Especially (1)

Pardon length of all this.

The second part of your advice about modifying the pacman.conf file is easy, but for this first part, I smell more potential/unforeseen trouble. (I could be wrong about this, but can't afford to be right).
I don't want to sound like I am bucking good, useful advice, or the opportunity to learn something very useful.

I will try this downgrade solution if the procedures for me to follow are more clear.
Is there documentation for this you can suggest?

I also feel a need to air out some thoughts/concerns/fears:

If I am having this segfault problem, would it not be a safe bet other users will be having the same problem?
Could this not be resolved at the source, by package maintainers, for all relevant virtualbox packages? A segfault is not exactly a minor bug, and I think this is fairly common/widely-used software. Is there not a package maintainer that uses or can test vbox on their own setup, and push out the necessary changes into the main repo? I guess there are a lot of other things to think about, and a limited number of people to do the work. I don't know the process.
Normally I would be very happy to try this out of curiosity, and learn this process, and be happy to break things in the process IF this was my own free time, which it isn't. But this could be far more involved and time-consuming than it sounds (Murphy's Law "everything takes longer than you think", plus general experience tells me this), with no guarantee of success if procedure is followed correctly, or immunity against PEBCAC error if it isn't: and it already sounds like a somewhat involved process. Unfortunately: ::: Time, certainty, reliability ::: are significant/critical factors for me right now. I am in study and there is a tight schedule for me to keep to. I can't keep throwing more days away on troubleshooting things that randomly fatally break like this, and which still might not work at all even after putting in a significant effort to downgrade. So, I am hoping the package maintainers (who have much bigger brains than me) can resolve this for all relevant packages at the source.
I know Vbox is not known to be the most stable of all software in any case: but on arch, I got kernel driver errors immediately after installing virtualbox, when opening the vbox manager, before vbox finally worked for a few days for some mysterious reason (probably installing other packages around it by trying to get other vm software working), and now this fatal segfault on yesterday's update. So far, not so good.
(I don't mean to sound demanding (of anybody), or be a broken record stuck on repeat) Essentially, I need a reliable working VMsetup (which has NAT Networking) now (preferably on arch, as I have it built on this laptop), and put time into it. I am very open to suggestions about reliable VM setups with NAT networking on arch, and a setup procedure if available. I have tried several
I am already considering building a second laptop to put a debian-based distro on just for this purpose, as PERHAPS packages might be a bit more stable, and testing might be a bit more thorough. I really don't know, and I am not trying to "cast shade" on arch in any way, or on the amazing work of it's devs/maintainers/forum support. Being a rolling distro, possibly the packages are the same way: "living on the edge" of most recent versions, but breakages more common(?)

Also, I totally acknowledge my stupidity/ineptitude in not having learned to use timeshift, and having done it as soon as the setup WAS working. I am overloaded.

Thanks again.

Last edited by wub (2025-08-23 01:48:34)

wub · 2025-08-22 23:59:04

One other piece of information I should add (not sure if I did already):

It is just the virtualbox machine MANAGER which segfaults and cannot run when trying to run from terminal $ virtualbox.
When I try to launch it from gui, it just doesn't open and returns no message, (which might expected, given the above).
If I run a VDI / vbox disk image from my file manager, a pre-existing/previously created machine will run.
Without the vbox machine manager, I cannot create new machines, manage current machines, manage hardware settings and networks, storage, media, etc.

Also, what are the chances this segfault is related in any way to any historical vbox segfaults? Probably low-probability, I guess.

A search for relevant arch vbox segfault tickets under https://www.virtualbox.org/ticket/
https://duckduckgo.com/?t=ffab&q=segfau … %2F&ia=web

Last edited by wub (2025-08-23 01:41:59)

seth · 2025-08-23 07:08:34

https://wiki.archlinux.org/title/Arch_Linux_Archive

Segmentation fault         (core dumped) virtualbox

https://wiki.archlinux.org/title/Core_d … _core_dump

Lone_Wolf · 2025-08-23 09:51:37

The simplest solution for you is probably to use the arch linux archive (see #7) and revert the packages on your system to the date of the last pacman -Syu before the issues started.

Vbox on archlinux has 2 big weaknesses :
It uses out of tree kernel modules that can only be updated by oracle
archlinux users are among the early adopters that run vbox outside of testing environments. Often that makes us the first ones to discover bugs.

Answering your other questions is possible, but should be dealt with in a separate thread (possibly more then one) .

wub · 2025-08-24 01:05:08

-------
@all
-------
Please excuse "too many silly questions"/comments previously. TBH I'm flailing about at the moment, and a bit desperate. All advice has been appreciated.
---------
@seth
---------
Thank you! Concise but very useful. I didn't know about the package archive, and have otherwise been totally ignorant on how best to approach this problem.

Also, thank you for the link about further info on the segfault.
That will make for some light reading another time.
I could have researched it, but it's one of those things I have no hope of fixing on my own right now, short of a "downgrade" back to a working package.
I would like to learn some more lowlevel programming + debugging, but that's not the mission for the moment.

------------------
@Lone_Wolf
------------------
Thanks again for the further info and clarification.
I have other laptops.

I will attempt the downgrade now, and return with any questions or just to notify of success/failure.
Perhaps also building another debian-based environment for what I am doing at the moment might be more stable(?), and return to arch a bit later.
I'll do both I think, and try and use arch as my primary, and deb as a backup.

More juggling required.

PS.
I would have been curious if you could provide instructional links/clarification for your initial suggestion, this sentence:

The kernel modules that come with vbox need to be (re-)built against every installed kernel, use their dkms packages.

This sort of thing perhaps?
Out of all this, what is the most relevant reading in this instance? In what order? What else is relevant? What is irrelevant?
Thanks!

Dynamic Kernel Module Support - ArchWiki
https://wiki.archlinux.org/title/Dynami … le_Support

DKMS package guidelines - ArchWiki
https://wiki.archlinux.org/title/DKMS_p … guidelines

dkms(8) — Arch manual pages
https://man.archlinux.org/man/dkms.8

[solved] How to install and load a DKMS module? / Kernel & Hardware / Arch Linux Forums
https://bbs.archlinux.org/viewtopic.php?id=253087

Arch build system - ArchWiki
https://wiki.archlinux.org/title/Arch_build_system

makepkg - ArchWiki
https://wiki.archlinux.org/title/Makepkg

Creating packages - ArchWiki
https://wiki.archlinux.org/title/Creating_packages

Arch package guidelines - ArchWiki
https://wiki.archlinux.org/title/Arch_p … guidelines

I will go with the simple fix for the moment, as simpler is better right now, but definitely curious on the "hard way" for later.
Thanks.

Last edited by wub (2025-08-24 01:17:55)

wub · 2025-08-24 02:06:50

Sorry to bother you all with basic stuff.

How do I verify

virtualbox-7.1.12-1-x86_64.pkg.tar.zst.sig
against
virtualbox-7.1.12-1-x86_64.pkg.tar.zst
?

Tried:
I read the arch wiki GPG stub
https://wiki.archlinux.org/title/GnuPG

Tried options at: 5.2 Verify a signature
got
Can't check signature: No public key
Showcasing my hugely limited working knowledge of GPG (and everything else).

Or is this more properly covered by paccheck? (Which does not seem to be available at my prompt).

https://bbs.archlinux.org/viewtopic.php?id=195645

Regardless
I unzipped the .zst (operating within ~/Downloads/packages)
In what seemed unusual behaviour to me, but clearly by design (as I am guessing this tool recognizes packages and takes instructions for where to unzip their contents), it dumped all package files into correct locations
/usr/bin
/usr/lib
/usr/share

...rather than in the operating directory....
Which does make a lot of sense, for what this is, but was hoping to verify package first.

Anyway, I should learn and get in the habit of verifying these archive packages properly before running.

While waiting for advice from higher powers:
I will block updates to vbox in pacman conf, per Lone_Wolf's suggestion, run -Syu, and see if that does some verifying or spits out anything unpleasant at me.

Thanks.

Last edited by wub (2025-08-24 06:17:36)

seth · 2025-08-24 08:39:48

You're not unzipping anything, you can downgrade the package w/ "pacman -U", https://wiki.archlinux.org/title/Downgrading_packages
It'll also take care of the signatures unless you disabled that w/ "LocalFileSigLevel" in your pacman.conf
nb. that despite the "local" part, you can use -U w/ urls.

null_is_nil · 2025-08-26 15:58:02

@wub
I get the same "Segmentation fault (core dumped) virtualbox" error. Have you found the cause yet or has this issue been reported to a package maintainer?

Last edited by null_is_nil (2025-08-26 15:58:55)

seth · 2025-08-26 19:06:39

Before reporting anything anywhere we might want to take a look at the https://wiki.archlinux.org/title/Core_d … _core_dump to estimate where this is coming from.

wub · 2025-08-27 00:35:43

@Seth

Thanks very much again Seth.

Regarding
https://wiki.archlinux.org/title/Core_d … _core_dump

    $ virtualbox 
    Segmentation fault         (core dumped) virtualbox
    $ sudo coredumpctl info virtualbox
    No coredumps found.
    $ sudo coredumpctl info /usr/bin/virtualbox
    No coredumps found.

Paradoxical.
Did I run this incorrectly?
-----------------
@anybody:
-----------------
Is there a "for dummies" version of a procedure for how to verify the packages (from archives) against the package sigs?

I've had a (skim) read through
https://wiki.archlinux.org/title/Pacman/Package_signing

And the linked sections under
https://wiki.archlinux.org/title/Pacman … g#See_also

Pacman Package Signing – 2: Pacman-key
Pacman Package Signing – 3: Pacman
Pacman Package Signing – 4: Arch Linux

And several pages on Allan McRae's site (a very interesting sidetrack/general resource).

The answer may well be staring me in the face, but my brain is melting from information-overload coming at me from other directions right now.

ie.

What is the procedure to verify these downgrade packages...

virtualbox-7.1.12-1-x86_64.pkg.tar.zst
virtualbox-guest-iso-7.1.12-1-any.pkg.tar.zst
virtualbox-guest-utils-7.1.12-1-x86_64.pkg.tar.zst
virtualbox-host-dkms-7.1.12-1-x86_64.pkg.tar.zst
virtualbox-host-modules-arch-7.1.12-1-x86_64.pkg.tar.zst

Against these sigs?

virtualbox-7.1.12-1-x86_64.pkg.tar.zst.sig
virtualbox-guest-iso-7.1.12-1-any.pkg.tar.zst.sig
virtualbox-guest-utils-7.1.12-1-x86_64.pkg.tar.zst.sig
virtualbox-host-dkms-7.1.12-1-x86_64.pkg.tar.zst.sig
virtualbox-host-modules-arch-7.1.12-1-x86_64.pkg.tar.zst.sig

?

Apologies if this seems like a request for hand-holding.
Many thanks.

Last edited by wub (2025-08-27 06:48:27)

seth · 2025-08-27 07:17:45

The signatures are checked when installing the packages, to check any file see https://man.archlinux.org/man/gpg.1#verify and you'll have to https://man.archlinux.org/man/gpg.1#homedir
https://wiki.archlinux.org/title/Pacman … g_with_gpg

To check the integrity of (all) installed packages

sudo LC_ALL=C pacman -Qkk | grep -v ', 0 altered files' | grep -v backup

sudo coredumpctl info virtualbox

coredumpctl list

GerBra · 2025-08-27 07:57:46

wub wrote:

Is there a "for dummies" version of a procedure for how to verify the packages (from archives) against the package sigs?

If you really need to check by Hand:

pacman-key --verify /path/to/virtualbox-7.1.12-1-x86_64.pkg.tar.zst.sig /path/to/virtualbox-7.1.12-1-x86_64.pkg.tar.zst

Give --verify first the .sig then the matching package to check.
You don't need to be root for this.

wub · 2025-08-27 10:35:59

-----------
@seth
-----------

Thanks so much Seth!
I have successfully downgraded. Vbox VMs are running again. I have set pacman conf to ignore upgrades on all virtualbox packages.

I will consider this resolved (for my purposes), and leave it to the better judgement of any moderator as to whether to close this thread.
Maybe worth leaving open for any notifications of any fixes in the next version of vbox, or some other fix... but I am done, and can get back to study now.

---------------------------
@GerBra + @seth
---------------------------
It is very impressive/fantastic that verification of the older/archival packages has been programmed into pacman (very cool), but it is also great to have ways to manually verify the integrity of packages, for peace of mind. What a great system.
I really appreciate you both taking the time to show me that.

Hopefully one day my bash and system knowledge will grow more. I intend to get better at it. Sorry to lean on you for this.

I was going down the path of thinking I needed to import keys somewhere from
https://archlinux.org/master-keys/
....into gpg, to verify/cross-check against between the package and sig file. I don't know what I was thinking, really.

This line was very informative:

sudo LC_ALL=C pacman -Qkk | grep -v ', 0 altered files' | grep -v backup

I did some quick reading about it. The only part I don't immediately understand yet is LC_ALL=C
I will have to look into that.

Thanks again @seth: you (and @Lone_Wolf) really saved the day for me
....and fwiw (absolutely less-than-nothing, I guess) you really saved my @$$! 0__0

wub · 2025-08-27 10:42:49

PS.
Did you want this output? If not, I will delete this post.

After the downgrade (same output):

    sudo coredumpctl info virtualbox
    No coredumps found.

    sudo coredumpctl list | grep -i virtualbox
Fri 2025-08-22 07:29:43 UTC  7852 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 07:33:27 UTC  8382 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 07:47:55 UTC  8989 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 07:49:02 UTC  9124 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 07:56:05 UTC  1745 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 07:57:42 UTC  2045 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 07:58:11 UTC  2132 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 08:02:35 UTC  2280 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 08:04:45 UTC  2553 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 08:07:53 UTC  3065 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 08:08:30 UTC  3171 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 08:09:02 UTC  3476 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 08:13:05 UTC  3741 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 08:13:40 UTC  3836 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 08:14:38 UTC  4035 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 08:16:00 UTC  1145 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 08:18:45 UTC  1683 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 08:18:53 UTC  1757 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 08:20:55 UTC  1836 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 08:26:13 UTC 28712 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.3M
Fri 2025-08-22 08:30:16 UTC 29250 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 08:31:55 UTC  1202 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 08:32:19 UTC  1293 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 08:33:41 UTC  1794 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 08:42:04 UTC  2662 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 08:42:24 UTC  2795 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 08:56:42 UTC  6938 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.3M
Fri 2025-08-22 09:00:55 UTC  1164 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 09:03:00 UTC  2085 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 10:22:05 UTC  5596 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Fri 2025-08-22 13:09:32 UTC 16729 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Sun 2025-08-24 00:22:12 UTC 18000 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Sun 2025-08-24 01:34:30 UTC 23219 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Sun 2025-08-24 01:34:47 UTC 23292 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Sun 2025-08-24 02:23:00 UTC 27256 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Sun 2025-08-24 02:23:08 UTC 27330 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Sun 2025-08-24 06:54:32 UTC 57303 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      5.8M
Sun 2025-08-24 22:45:12 UTC  2828 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Mon 2025-08-25 00:53:29 UTC  6556 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Mon 2025-08-25 00:53:39 UTC  6633 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Mon 2025-08-25 21:54:33 UTC 11954 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Mon 2025-08-25 21:54:50 UTC 12027 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Mon 2025-08-25 21:59:17 UTC 12713 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.3M
Tue 2025-08-26 23:36:21 UTC 16795 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Tue 2025-08-26 23:36:34 UTC 16873 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Wed 2025-08-27 01:12:41 UTC 22673 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      7.4M
Wed 2025-08-27 10:00:46 UTC 58813 1000 1000 SIGSEGV present  /usr/lib/virtualbox/VirtualBox      5.8M

xerxes_ · 2025-08-27 11:07:14

Now you can post output of:

sudo coredumpctl dump /usr/lib/virtualbox/VirtualBox
sudo coredumpctl debug /usr/lib/virtualbox/VirtualBox

wub · 2025-08-29 06:57:38

Hi @xerxes_
Thank you for your further interest and assistance!

    sudo coredumpctl dump /usr/lib/virtualbox/VirtualBox

This generates output that is too large for the terminal emulator, and redirecting it to a textfile generates a whopping 125MB textfile, and the extension for this in my file browser classifies it as "Program Crash File". It refuses to open in my text editor. I will post the partial results copy-pasted from terminal which end by returning an error.

Please note that my virtualbox packages are now downgraded and working! This might make all of these dump and debug commands redundant/pointless, as the system is effectively working as it was before the recent upgrade. I will not be upgrading again until I am sure, because it is critical for me and my little world that this works right now.

I will post the results of the second command in the next message.

    PID: 58813 (VirtualBox)
           UID: 1000 ()
           GID: 1000 ()
        Signal: 11 (SEGV)
     Timestamp: Wed 2025-08-27 10:00:45 UTC (1 day 20h ago)
  Command Line: /usr/lib/virtualbox/VirtualBox
    Executable: /usr/lib/virtualbox/VirtualBox
 Control Group: /user.slice/user-1000.slice/session-2.scope
          Unit: session-2.scope
         Slice: user-1000.slice
       Session: 2
     Owner UID: 1000 ()
       Boot ID: 05a271021bc5402c8ccc2064c4df8420
    Machine ID: 5c9c614716c847d8a6d46bd620ea5b33
      Hostname: 
       Storage: /var/lib/systemd/coredump/core.VirtualBox.1000.05a271021bc5402c8ccc2064c4df8420.58813.1756288845000000.zst (present)
  Size on Disk: 5.8M
       Message: Process 58813 (VirtualBox) of user 1000 dumped core.
                
                Stack trace of thread 58813:
                #0  0x00007f1502e841a8 _ZN20UINotificationCenter6appendEP20UINotificationObject (UICommon.so + 0x4841a8)
                #1  0x00007f1502e96b61 _ZN21UINotificationMessage13createMessageERK7QStringS2_S2_S2_P20UINotificationCenter (UICommon.so + 0x496b61)
                #2  0x00007f1502e9b99e _ZN21UINotificationMessage32cannotAcquireVirtualBoxParameterERK11CVirtualBoxP20UINotificationCenter (UICommon.so + 0x49b99e)
                #3  0x000055933c1d536c n/a (/usr/lib/virtualbox/VirtualBox + 0x11936c)
                #4  0x000055933c1d704a n/a (/usr/lib/virtualbox/VirtualBox + 0x11b04a)
                #5  0x000055933c1e74dc n/a (/usr/lib/virtualbox/VirtualBox + 0x12b4dc)
                #6  0x000055933c1c0cd5 n/a (/usr/lib/virtualbox/VirtualBox + 0x104cd5)
                #7  0x000055933c1c1410 n/a (/usr/lib/virtualbox/VirtualBox + 0x105410)
                #8  0x000055933c1b3a1d n/a (/usr/lib/virtualbox/VirtualBox + 0xf7a1d)
                #9  0x000055933c1b3cbc n/a (/usr/lib/virtualbox/VirtualBox + 0xf7cbc)
                #10 0x000055933c19ca6f n/a (/usr/lib/virtualbox/VirtualBox + 0xe0a6f)
                #11 0x00007f1501fc0e34 _ZN7QObject5eventEP6QEvent (libQt6Core.so.6 + 0x1c0e34)
                #12 0x00007f1500d01c70 _ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt6Widgets.so.6 + 0x101c70)
                #13 0x00007f1501f68118 _ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt6Core.so.6 + 0x168118)
                #14 0x00007f1501f684fb _ZN23QCoreApplicationPrivate16sendPostedEventsEP7QObjectiP11QThreadData (libQt6Core.so.6 + 0x1684fb)
                #15 0x00007f150223fcf8 n/a (libQt6Core.so.6 + 0x43fcf8)
                #16 0x00007f14ff708880 n/a (libglib-2.0.so.0 + 0x5e880)
                #17 0x00007f14ff709cd7 n/a (libglib-2.0.so.0 + 0x5fcd7)
                #18 0x00007f14ff709ee5 g_main_context_iteration (libglib-2.0.so.0 + 0x5fee5)
                #19 0x00007f150223c5e2 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x43c5e2)
                #20 0x00007f1501f744b6 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x1744b6)
                #21 0x00007f1501f6c7c1 _ZN16QCoreApplication4execEv (libQt6Core.so.6 + 0x16c7c1)
                #22 0x000055933c178fdc n/a (/usr/lib/virtualbox/VirtualBox + 0xbcfdc)
                #23 0x000055933c173732 n/a (/usr/lib/virtualbox/VirtualBox + 0xb7732)
                #24 0x00007f1500427675 n/a (libc.so.6 + 0x27675)
                #25 0x00007f1500427729 __libc_start_main (libc.so.6 + 0x27729)
                #26 0x000055933c178405 n/a (/usr/lib/virtualbox/VirtualBox + 0xbc405)
                
                Stack trace of thread 58825:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050da36 ppoll (libc.so.6 + 0x10da36)
                #4  0x00007f14ff709e04 n/a (libglib-2.0.so.0 + 0x5fe04)
                #5  0x00007f14ff709ee5 g_main_context_iteration (libglib-2.0.so.0 + 0x5fee5)
                #6  0x00007f150223c5e2 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x43c5e2)
                #7  0x00007f1501f744b6 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x1744b6)
                #8  0x00007f15020873c6 _ZN7QThread4execEv (libQt6Core.so.6 + 0x2873c6)
                #9  0x00007f1501d7adae n/a (libQt6DBus.so.6 + 0x37dae)
                #10 0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #11 0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #12 0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58838:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f150049381c n/a (libc.so.6 + 0x9381c)
                #3  0x00007f1500495ede pthread_cond_wait (libc.so.6 + 0x95ede)
                #4  0x00007f1502854864 n/a (VBoxRT.so + 0x254864)
                #5  0x00007f150278ac53 RTReqQueueProcess (VBoxRT.so + 0x18ac53)
                #6  0x00007f1502852407 n/a (VBoxRT.so + 0x252407)
                #7  0x00007f150278db00 n/a (VBoxRT.so + 0x18db00)
                #8  0x00007f1502852894 n/a (VBoxRT.so + 0x252894)
                #9  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #10 0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58852:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f150049381c n/a (libc.so.6 + 0x9381c)
                #3  0x00007f15004960e8 pthread_cond_timedwait (libc.so.6 + 0x960e8)
                #4  0x00007f150212dd25 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x32dd25)
                #5  0x00007f1502127c40 n/a (libQt6Core.so.6 + 0x327c40)
                #6  0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #7  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #8  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58839:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050d4ee __poll (libc.so.6 + 0x10d4ee)
                #4  0x00007f15027fbdda n/a (VBoxRT.so + 0x1fbdda)
                #5  0x00007f15027fbf71 RTPoll (VBoxRT.so + 0x1fbf71)
                #6  0x00007f14f801c207 n/a (VBoxXPCOMIPCC.so + 0x1a207)
                #7  0x00007f150278db00 n/a (VBoxRT.so + 0x18db00)
                #8  0x00007f1502852894 n/a (VBoxRT.so + 0x252894)
                #9  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #10 0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58851:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f150049381c n/a (libc.so.6 + 0x9381c)
                #3  0x00007f15004960e8 pthread_cond_timedwait (libc.so.6 + 0x960e8)
                #4  0x00007f150212dd25 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x32dd25)
                #5  0x00007f1502127c40 n/a (libQt6Core.so.6 + 0x327c40)
                #6  0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #7  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #8  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58827:
                #0  0x00007f150051876d syscall (libc.so.6 + 0x11876d)
                #1  0x00007f14ff7388ee g_cond_wait (libglib-2.0.so.0 + 0x8e8ee)
                #2  0x00007f14ff6cfebd n/a (libglib-2.0.so.0 + 0x25ebd)
                #3  0x00007f14ff6cff2d g_async_queue_pop (libglib-2.0.so.0 + 0x25f2d)
                #4  0x00007f14fb50a4fc n/a (libpangoft2-1.0.so.0 + 0xc4fc)
                #5  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #6  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #7  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58828:
                #0  0x00007f150051876d syscall (libc.so.6 + 0x11876d)
                #1  0x00007f14ff7388ee g_cond_wait (libglib-2.0.so.0 + 0x8e8ee)
                #2  0x00007f14ff6cfebd n/a (libglib-2.0.so.0 + 0x25ebd)
                #3  0x00007f14ff741547 n/a (libglib-2.0.so.0 + 0x97547)
                #4  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #5  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #6  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58826:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050d4ee __poll (libc.so.6 + 0x10d4ee)
                #4  0x00007f150243520b n/a (libxcb.so.1 + 0xd20b)
                #5  0x00007f1502436f3d xcb_wait_for_event (libxcb.so.1 + 0xef3d)
                #6  0x00007f14fcb616e9 n/a (libQt6XcbQpa.so.6 + 0x566e9)
                #7  0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #8  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #9  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58830:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050da36 ppoll (libc.so.6 + 0x10da36)
                #4  0x00007f14ff709e04 n/a (libglib-2.0.so.0 + 0x5fe04)
                #5  0x00007f14ff70a097 g_main_loop_run (libglib-2.0.so.0 + 0x60097)
                #6  0x00007f14fad49fe4 n/a (libgio-2.0.so.0 + 0x117fe4)
                #7  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #8  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #9  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58829:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050da36 ppoll (libc.so.6 + 0x10da36)
                #4  0x00007f14ff709e04 n/a (libglib-2.0.so.0 + 0x5fe04)
                #5  0x00007f14ff709ee5 g_main_context_iteration (libglib-2.0.so.0 + 0x5fee5)
                #6  0x00007f14ff709f32 n/a (libglib-2.0.so.0 + 0x5ff32)
                #7  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #8  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #9  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                ELF object binary architecture: AMD x86-64
Refusing to dump core to tty (use shell redirection or specify --output).
[@ ~]$ sudo coredumpctl dump /usr/lib/virtualbox/VirtualBox > d
d/  dl/ 
[@ ~]$ sudo coredumpctl dump /usr/lib/virtualbox/VirtualBox > d/tempShellOP
           PID: 58813 (VirtualBox)
           UID: 1000 ()
           GID: 1000 ()
        Signal: 11 (SEGV)
     Timestamp: Wed 2025-08-27 10:00:45 UTC (1 day 20h ago)
  Command Line: /usr/lib/virtualbox/VirtualBox
    Executable: /usr/lib/virtualbox/VirtualBox
 Control Group: /user.slice/user-1000.slice/session-2.scope
          Unit: session-2.scope
         Slice: user-1000.slice
       Session: 2
     Owner UID: 1000 ()
       Boot ID: 05a271021bc5402c8ccc2064c4df8420
    Machine ID: 5c9c614716c847d8a6d46bd620ea5b33
      Hostname: 
       Storage: /var/lib/systemd/coredump/core.VirtualBox.1000.05a271021bc5402c8ccc2064c4df8420.58813.1756288845000000.zst (present)
  Size on Disk: 5.8M
       Message: Process 58813 (VirtualBox) of user 1000 dumped core.
                
                Stack trace of thread 58813:
                #0  0x00007f1502e841a8 _ZN20UINotificationCenter6appendEP20UINotificationObject (UICommon.so + 0x4841a8)
                #1  0x00007f1502e96b61 _ZN21UINotificationMessage13createMessageERK7QStringS2_S2_S2_P20UINotificationCenter (UICommon.so + 0x496b61)
                #2  0x00007f1502e9b99e _ZN21UINotificationMessage32cannotAcquireVirtualBoxParameterERK11CVirtualBoxP20UINotificationCenter (UICommon.so + 0x49b99e)
                #3  0x000055933c1d536c n/a (/usr/lib/virtualbox/VirtualBox + 0x11936c)
                #4  0x000055933c1d704a n/a (/usr/lib/virtualbox/VirtualBox + 0x11b04a)
                #5  0x000055933c1e74dc n/a (/usr/lib/virtualbox/VirtualBox + 0x12b4dc)
                #6  0x000055933c1c0cd5 n/a (/usr/lib/virtualbox/VirtualBox + 0x104cd5)
                #7  0x000055933c1c1410 n/a (/usr/lib/virtualbox/VirtualBox + 0x105410)
                #8  0x000055933c1b3a1d n/a (/usr/lib/virtualbox/VirtualBox + 0xf7a1d)
                #9  0x000055933c1b3cbc n/a (/usr/lib/virtualbox/VirtualBox + 0xf7cbc)
                #10 0x000055933c19ca6f n/a (/usr/lib/virtualbox/VirtualBox + 0xe0a6f)
                #11 0x00007f1501fc0e34 _ZN7QObject5eventEP6QEvent (libQt6Core.so.6 + 0x1c0e34)
                #12 0x00007f1500d01c70 _ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt6Widgets.so.6 + 0x101c70)
                #13 0x00007f1501f68118 _ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt6Core.so.6 + 0x168118)
                #14 0x00007f1501f684fb _ZN23QCoreApplicationPrivate16sendPostedEventsEP7QObjectiP11QThreadData (libQt6Core.so.6 + 0x1684fb)
                #15 0x00007f150223fcf8 n/a (libQt6Core.so.6 + 0x43fcf8)
                #16 0x00007f14ff708880 n/a (libglib-2.0.so.0 + 0x5e880)
                #17 0x00007f14ff709cd7 n/a (libglib-2.0.so.0 + 0x5fcd7)
                #18 0x00007f14ff709ee5 g_main_context_iteration (libglib-2.0.so.0 + 0x5fee5)
                #19 0x00007f150223c5e2 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x43c5e2)
                #20 0x00007f1501f744b6 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x1744b6)
                #21 0x00007f1501f6c7c1 _ZN16QCoreApplication4execEv (libQt6Core.so.6 + 0x16c7c1)
                #22 0x000055933c178fdc n/a (/usr/lib/virtualbox/VirtualBox + 0xbcfdc)
                #23 0x000055933c173732 n/a (/usr/lib/virtualbox/VirtualBox + 0xb7732)
                #24 0x00007f1500427675 n/a (libc.so.6 + 0x27675)
                #25 0x00007f1500427729 __libc_start_main (libc.so.6 + 0x27729)
                #26 0x000055933c178405 n/a (/usr/lib/virtualbox/VirtualBox + 0xbc405)
                
                Stack trace of thread 58825:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050da36 ppoll (libc.so.6 + 0x10da36)
                #4  0x00007f14ff709e04 n/a (libglib-2.0.so.0 + 0x5fe04)
                #5  0x00007f14ff709ee5 g_main_context_iteration (libglib-2.0.so.0 + 0x5fee5)
                #6  0x00007f150223c5e2 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x43c5e2)
                #7  0x00007f1501f744b6 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x1744b6)
                #8  0x00007f15020873c6 _ZN7QThread4execEv (libQt6Core.so.6 + 0x2873c6)
                #9  0x00007f1501d7adae n/a (libQt6DBus.so.6 + 0x37dae)
                #10 0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #11 0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #12 0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58838:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f150049381c n/a (libc.so.6 + 0x9381c)
                #3  0x00007f1500495ede pthread_cond_wait (libc.so.6 + 0x95ede)
                #4  0x00007f1502854864 n/a (VBoxRT.so + 0x254864)
                #5  0x00007f150278ac53 RTReqQueueProcess (VBoxRT.so + 0x18ac53)
                #6  0x00007f1502852407 n/a (VBoxRT.so + 0x252407)
                #7  0x00007f150278db00 n/a (VBoxRT.so + 0x18db00)
                #8  0x00007f1502852894 n/a (VBoxRT.so + 0x252894)
                #9  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #10 0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58852:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f150049381c n/a (libc.so.6 + 0x9381c)
                #3  0x00007f15004960e8 pthread_cond_timedwait (libc.so.6 + 0x960e8)
                #4  0x00007f150212dd25 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x32dd25)
                #5  0x00007f1502127c40 n/a (libQt6Core.so.6 + 0x327c40)
                #6  0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #7  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #8  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58839:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050d4ee __poll (libc.so.6 + 0x10d4ee)
                #4  0x00007f15027fbdda n/a (VBoxRT.so + 0x1fbdda)
                #5  0x00007f15027fbf71 RTPoll (VBoxRT.so + 0x1fbf71)
                #6  0x00007f14f801c207 n/a (VBoxXPCOMIPCC.so + 0x1a207)
                #7  0x00007f150278db00 n/a (VBoxRT.so + 0x18db00)
                #8  0x00007f1502852894 n/a (VBoxRT.so + 0x252894)
                #9  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #10 0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58851:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f150049381c n/a (libc.so.6 + 0x9381c)
                #3  0x00007f15004960e8 pthread_cond_timedwait (libc.so.6 + 0x960e8)
                #4  0x00007f150212dd25 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x32dd25)
                #5  0x00007f1502127c40 n/a (libQt6Core.so.6 + 0x327c40)
                #6  0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #7  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #8  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58827:
                #0  0x00007f150051876d syscall (libc.so.6 + 0x11876d)
                #1  0x00007f14ff7388ee g_cond_wait (libglib-2.0.so.0 + 0x8e8ee)
                #2  0x00007f14ff6cfebd n/a (libglib-2.0.so.0 + 0x25ebd)
                #3  0x00007f14ff6cff2d g_async_queue_pop (libglib-2.0.so.0 + 0x25f2d)
                #4  0x00007f14fb50a4fc n/a (libpangoft2-1.0.so.0 + 0xc4fc)
                #5  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #6  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #7  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58828:
                #0  0x00007f150051876d syscall (libc.so.6 + 0x11876d)
                #1  0x00007f14ff7388ee g_cond_wait (libglib-2.0.so.0 + 0x8e8ee)
                #2  0x00007f14ff6cfebd n/a (libglib-2.0.so.0 + 0x25ebd)
                #3  0x00007f14ff741547 n/a (libglib-2.0.so.0 + 0x97547)
                #4  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #5  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #6  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58826:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050d4ee __poll (libc.so.6 + 0x10d4ee)
                #4  0x00007f150243520b n/a (libxcb.so.1 + 0xd20b)
                #5  0x00007f1502436f3d xcb_wait_for_event (libxcb.so.1 + 0xef3d)
                #6  0x00007f14fcb616e9 n/a (libQt6XcbQpa.so.6 + 0x566e9)
                #7  0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #8  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #9  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58830:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050da36 ppoll (libc.so.6 + 0x10da36)
                #4  0x00007f14ff709e04 n/a (libglib-2.0.so.0 + 0x5fe04)
                #5  0x00007f14ff70a097 g_main_loop_run (libglib-2.0.so.0 + 0x60097)
                #6  0x00007f14fad49fe4 n/a (libgio-2.0.so.0 + 0x117fe4)
                #7  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #8  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #9  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58829:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050da36 ppoll (libc.so.6 + 0x10da36)
                #4  0x00007f14ff709e04 n/a (libglib-2.0.so.0 + 0x5fe04)
                #5  0x00007f14ff709ee5 g_main_context_iteration (libglib-2.0.so.0 + 0x5fee5)
                #6  0x00007f14ff709f32 n/a (libglib-2.0.so.0 + 0x5ff32)
                #7  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #8  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #9  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                ELF object binary architecture: AMD x86-64
More than one entry matches, ignoring rest.
[@ ~]$ sudo coredumpctl dump /usr/lib/virtualbox/VirtualBox > d/tempShellOP
           PID: 58813 (VirtualBox)
           UID: 1000 ()
           GID: 1000 ()
        Signal: 11 (SEGV)
     Timestamp: Wed 2025-08-27 10:00:45 UTC (1 day 20h ago)
  Command Line: /usr/lib/virtualbox/VirtualBox
    Executable: /usr/lib/virtualbox/VirtualBox
 Control Group: /user.slice/user-1000.slice/session-2.scope
          Unit: session-2.scope
         Slice: user-1000.slice
       Session: 2
     Owner UID: 1000 ()
       Boot ID: 05a271021bc5402c8ccc2064c4df8420
    Machine ID: 5c9c614716c847d8a6d46bd620ea5b33
      Hostname: 
       Storage: /var/lib/systemd/coredump/core.VirtualBox.1000.05a271021bc5402c8ccc2064c4df8420.58813.1756288845000000.zst (present)
  Size on Disk: 5.8M
       Message: Process 58813 (VirtualBox) of user 1000 dumped core.
                
                Stack trace of thread 58813:
                #0  0x00007f1502e841a8 _ZN20UINotificationCenter6appendEP20UINotificationObject (UICommon.so + 0x4841a8)
                #1  0x00007f1502e96b61 _ZN21UINotificationMessage13createMessageERK7QStringS2_S2_S2_P20UINotificationCenter (UICommon.so + 0x496b61)
                #2  0x00007f1502e9b99e _ZN21UINotificationMessage32cannotAcquireVirtualBoxParameterERK11CVirtualBoxP20UINotificationCenter (UICommon.so + 0x49b99e)
                #3  0x000055933c1d536c n/a (/usr/lib/virtualbox/VirtualBox + 0x11936c)
                #4  0x000055933c1d704a n/a (/usr/lib/virtualbox/VirtualBox + 0x11b04a)
                #5  0x000055933c1e74dc n/a (/usr/lib/virtualbox/VirtualBox + 0x12b4dc)
                #6  0x000055933c1c0cd5 n/a (/usr/lib/virtualbox/VirtualBox + 0x104cd5)
                #7  0x000055933c1c1410 n/a (/usr/lib/virtualbox/VirtualBox + 0x105410)
                #8  0x000055933c1b3a1d n/a (/usr/lib/virtualbox/VirtualBox + 0xf7a1d)
                #9  0x000055933c1b3cbc n/a (/usr/lib/virtualbox/VirtualBox + 0xf7cbc)
                #10 0x000055933c19ca6f n/a (/usr/lib/virtualbox/VirtualBox + 0xe0a6f)
                #11 0x00007f1501fc0e34 _ZN7QObject5eventEP6QEvent (libQt6Core.so.6 + 0x1c0e34)
                #12 0x00007f1500d01c70 _ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt6Widgets.so.6 + 0x101c70)
                #13 0x00007f1501f68118 _ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt6Core.so.6 + 0x168118)
                #14 0x00007f1501f684fb _ZN23QCoreApplicationPrivate16sendPostedEventsEP7QObjectiP11QThreadData (libQt6Core.so.6 + 0x1684fb)
                #15 0x00007f150223fcf8 n/a (libQt6Core.so.6 + 0x43fcf8)
                #16 0x00007f14ff708880 n/a (libglib-2.0.so.0 + 0x5e880)
                #17 0x00007f14ff709cd7 n/a (libglib-2.0.so.0 + 0x5fcd7)
                #18 0x00007f14ff709ee5 g_main_context_iteration (libglib-2.0.so.0 + 0x5fee5)
                #19 0x00007f150223c5e2 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x43c5e2)
                #20 0x00007f1501f744b6 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x1744b6)
                #21 0x00007f1501f6c7c1 _ZN16QCoreApplication4execEv (libQt6Core.so.6 + 0x16c7c1)
                #22 0x000055933c178fdc n/a (/usr/lib/virtualbox/VirtualBox + 0xbcfdc)
                #23 0x000055933c173732 n/a (/usr/lib/virtualbox/VirtualBox + 0xb7732)
                #24 0x00007f1500427675 n/a (libc.so.6 + 0x27675)
                #25 0x00007f1500427729 __libc_start_main (libc.so.6 + 0x27729)
                #26 0x000055933c178405 n/a (/usr/lib/virtualbox/VirtualBox + 0xbc405)
                
                Stack trace of thread 58825:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050da36 ppoll (libc.so.6 + 0x10da36)
                #4  0x00007f14ff709e04 n/a (libglib-2.0.so.0 + 0x5fe04)
                #5  0x00007f14ff709ee5 g_main_context_iteration (libglib-2.0.so.0 + 0x5fee5)
                #6  0x00007f150223c5e2 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x43c5e2)
                #7  0x00007f1501f744b6 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x1744b6)
                #8  0x00007f15020873c6 _ZN7QThread4execEv (libQt6Core.so.6 + 0x2873c6)
                #9  0x00007f1501d7adae n/a (libQt6DBus.so.6 + 0x37dae)
                #10 0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #11 0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #12 0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58838:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f150049381c n/a (libc.so.6 + 0x9381c)
                #3  0x00007f1500495ede pthread_cond_wait (libc.so.6 + 0x95ede)
                #4  0x00007f1502854864 n/a (VBoxRT.so + 0x254864)
                #5  0x00007f150278ac53 RTReqQueueProcess (VBoxRT.so + 0x18ac53)
                #6  0x00007f1502852407 n/a (VBoxRT.so + 0x252407)
                #7  0x00007f150278db00 n/a (VBoxRT.so + 0x18db00)
                #8  0x00007f1502852894 n/a (VBoxRT.so + 0x252894)
                #9  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #10 0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58852:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f150049381c n/a (libc.so.6 + 0x9381c)
                #3  0x00007f15004960e8 pthread_cond_timedwait (libc.so.6 + 0x960e8)
                #4  0x00007f150212dd25 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x32dd25)
                #5  0x00007f1502127c40 n/a (libQt6Core.so.6 + 0x327c40)
                #6  0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #7  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #8  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58839:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050d4ee __poll (libc.so.6 + 0x10d4ee)
                #4  0x00007f15027fbdda n/a (VBoxRT.so + 0x1fbdda)
                #5  0x00007f15027fbf71 RTPoll (VBoxRT.so + 0x1fbf71)
                #6  0x00007f14f801c207 n/a (VBoxXPCOMIPCC.so + 0x1a207)
                #7  0x00007f150278db00 n/a (VBoxRT.so + 0x18db00)
                #8  0x00007f1502852894 n/a (VBoxRT.so + 0x252894)
                #9  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #10 0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58851:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f150049381c n/a (libc.so.6 + 0x9381c)
                #3  0x00007f15004960e8 pthread_cond_timedwait (libc.so.6 + 0x960e8)
                #4  0x00007f150212dd25 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x32dd25)
                #5  0x00007f1502127c40 n/a (libQt6Core.so.6 + 0x327c40)
                #6  0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #7  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #8  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58827:
                #0  0x00007f150051876d syscall (libc.so.6 + 0x11876d)
                #1  0x00007f14ff7388ee g_cond_wait (libglib-2.0.so.0 + 0x8e8ee)
                #2  0x00007f14ff6cfebd n/a (libglib-2.0.so.0 + 0x25ebd)
                #3  0x00007f14ff6cff2d g_async_queue_pop (libglib-2.0.so.0 + 0x25f2d)
                #4  0x00007f14fb50a4fc n/a (libpangoft2-1.0.so.0 + 0xc4fc)
                #5  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #6  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #7  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58828:
                #0  0x00007f150051876d syscall (libc.so.6 + 0x11876d)
                #1  0x00007f14ff7388ee g_cond_wait (libglib-2.0.so.0 + 0x8e8ee)
                #2  0x00007f14ff6cfebd n/a (libglib-2.0.so.0 + 0x25ebd)
                #3  0x00007f14ff741547 n/a (libglib-2.0.so.0 + 0x97547)
                #4  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #5  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #6  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58826:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050d4ee __poll (libc.so.6 + 0x10d4ee)
                #4  0x00007f150243520b n/a (libxcb.so.1 + 0xd20b)
                #5  0x00007f1502436f3d xcb_wait_for_event (libxcb.so.1 + 0xef3d)
                #6  0x00007f14fcb616e9 n/a (libQt6XcbQpa.so.6 + 0x566e9)
                #7  0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #8  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #9  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58830:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050da36 ppoll (libc.so.6 + 0x10da36)
                #4  0x00007f14ff709e04 n/a (libglib-2.0.so.0 + 0x5fe04)
                #5  0x00007f14ff70a097 g_main_loop_run (libglib-2.0.so.0 + 0x60097)
                #6  0x00007f14fad49fe4 n/a (libgio-2.0.so.0 + 0x117fe4)
                #7  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #8  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #9  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58829:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050da36 ppoll (libc.so.6 + 0x10da36)
                #4  0x00007f14ff709e04 n/a (libglib-2.0.so.0 + 0x5fe04)
                #5  0x00007f14ff709ee5 g_main_context_iteration (libglib-2.0.so.0 + 0x5fee5)
                #6  0x00007f14ff709f32 n/a (libglib-2.0.so.0 + 0x5ff32)
                #7  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #8  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #9  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                ELF object binary architecture: AMD x86-64
More than one entry matches, ignoring rest.
[@ ~]$ sudo coredumpctl dump /usr/lib/virtualbox/VirtualBox > d/tempShellOP
           PID: 58813 (VirtualBox)
           UID: 1000 ()
           GID: 1000 ()
        Signal: 11 (SEGV)
     Timestamp: Wed 2025-08-27 10:00:45 UTC (1 day 20h ago)
  Command Line: /usr/lib/virtualbox/VirtualBox
    Executable: /usr/lib/virtualbox/VirtualBox
 Control Group: /user.slice/user-1000.slice/session-2.scope
          Unit: session-2.scope
         Slice: user-1000.slice
       Session: 2
     Owner UID: 1000 ()
       Boot ID: 05a271021bc5402c8ccc2064c4df8420
    Machine ID: 5c9c614716c847d8a6d46bd620ea5b33
      Hostname: 
       Storage: /var/lib/systemd/coredump/core.VirtualBox.1000.05a271021bc5402c8ccc2064c4df8420.58813.1756288845000000.zst (present)
  Size on Disk: 5.8M
       Message: Process 58813 (VirtualBox) of user 1000 dumped core.
                
                Stack trace of thread 58813:
                #0  0x00007f1502e841a8 _ZN20UINotificationCenter6appendEP20UINotificationObject (UICommon.so + 0x4841a8)
                #1  0x00007f1502e96b61 _ZN21UINotificationMessage13createMessageERK7QStringS2_S2_S2_P20UINotificationCenter (UICommon.so + 0x496b61)
                #2  0x00007f1502e9b99e _ZN21UINotificationMessage32cannotAcquireVirtualBoxParameterERK11CVirtualBoxP20UINotificationCenter (UICommon.so + 0x49b99e)
                #3  0x000055933c1d536c n/a (/usr/lib/virtualbox/VirtualBox + 0x11936c)
                #4  0x000055933c1d704a n/a (/usr/lib/virtualbox/VirtualBox + 0x11b04a)
                #5  0x000055933c1e74dc n/a (/usr/lib/virtualbox/VirtualBox + 0x12b4dc)
                #6  0x000055933c1c0cd5 n/a (/usr/lib/virtualbox/VirtualBox + 0x104cd5)
                #7  0x000055933c1c1410 n/a (/usr/lib/virtualbox/VirtualBox + 0x105410)
                #8  0x000055933c1b3a1d n/a (/usr/lib/virtualbox/VirtualBox + 0xf7a1d)
                #9  0x000055933c1b3cbc n/a (/usr/lib/virtualbox/VirtualBox + 0xf7cbc)
                #10 0x000055933c19ca6f n/a (/usr/lib/virtualbox/VirtualBox + 0xe0a6f)
                #11 0x00007f1501fc0e34 _ZN7QObject5eventEP6QEvent (libQt6Core.so.6 + 0x1c0e34)
                #12 0x00007f1500d01c70 _ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt6Widgets.so.6 + 0x101c70)
                #13 0x00007f1501f68118 _ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt6Core.so.6 + 0x168118)
                #14 0x00007f1501f684fb _ZN23QCoreApplicationPrivate16sendPostedEventsEP7QObjectiP11QThreadData (libQt6Core.so.6 + 0x1684fb)
                #15 0x00007f150223fcf8 n/a (libQt6Core.so.6 + 0x43fcf8)
                #16 0x00007f14ff708880 n/a (libglib-2.0.so.0 + 0x5e880)
                #17 0x00007f14ff709cd7 n/a (libglib-2.0.so.0 + 0x5fcd7)
                #18 0x00007f14ff709ee5 g_main_context_iteration (libglib-2.0.so.0 + 0x5fee5)
                #19 0x00007f150223c5e2 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x43c5e2)
                #20 0x00007f1501f744b6 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x1744b6)
                #21 0x00007f1501f6c7c1 _ZN16QCoreApplication4execEv (libQt6Core.so.6 + 0x16c7c1)
                #22 0x000055933c178fdc n/a (/usr/lib/virtualbox/VirtualBox + 0xbcfdc)
                #23 0x000055933c173732 n/a (/usr/lib/virtualbox/VirtualBox + 0xb7732)
                #24 0x00007f1500427675 n/a (libc.so.6 + 0x27675)
                #25 0x00007f1500427729 __libc_start_main (libc.so.6 + 0x27729)
                #26 0x000055933c178405 n/a (/usr/lib/virtualbox/VirtualBox + 0xbc405)
                
                Stack trace of thread 58825:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050da36 ppoll (libc.so.6 + 0x10da36)
                #4  0x00007f14ff709e04 n/a (libglib-2.0.so.0 + 0x5fe04)
                #5  0x00007f14ff709ee5 g_main_context_iteration (libglib-2.0.so.0 + 0x5fee5)
                #6  0x00007f150223c5e2 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x43c5e2)
                #7  0x00007f1501f744b6 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x1744b6)
                #8  0x00007f15020873c6 _ZN7QThread4execEv (libQt6Core.so.6 + 0x2873c6)
                #9  0x00007f1501d7adae n/a (libQt6DBus.so.6 + 0x37dae)
                #10 0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #11 0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #12 0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58838:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f150049381c n/a (libc.so.6 + 0x9381c)
                #3  0x00007f1500495ede pthread_cond_wait (libc.so.6 + 0x95ede)
                #4  0x00007f1502854864 n/a (VBoxRT.so + 0x254864)
                #5  0x00007f150278ac53 RTReqQueueProcess (VBoxRT.so + 0x18ac53)
                #6  0x00007f1502852407 n/a (VBoxRT.so + 0x252407)
                #7  0x00007f150278db00 n/a (VBoxRT.so + 0x18db00)
                #8  0x00007f1502852894 n/a (VBoxRT.so + 0x252894)
                #9  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #10 0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58852:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f150049381c n/a (libc.so.6 + 0x9381c)
                #3  0x00007f15004960e8 pthread_cond_timedwait (libc.so.6 + 0x960e8)
                #4  0x00007f150212dd25 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x32dd25)
                #5  0x00007f1502127c40 n/a (libQt6Core.so.6 + 0x327c40)
                #6  0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #7  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #8  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58839:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050d4ee __poll (libc.so.6 + 0x10d4ee)
                #4  0x00007f15027fbdda n/a (VBoxRT.so + 0x1fbdda)
                #5  0x00007f15027fbf71 RTPoll (VBoxRT.so + 0x1fbf71)
                #6  0x00007f14f801c207 n/a (VBoxXPCOMIPCC.so + 0x1a207)
                #7  0x00007f150278db00 n/a (VBoxRT.so + 0x18db00)
                #8  0x00007f1502852894 n/a (VBoxRT.so + 0x252894)
                #9  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #10 0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58851:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f150049381c n/a (libc.so.6 + 0x9381c)
                #3  0x00007f15004960e8 pthread_cond_timedwait (libc.so.6 + 0x960e8)
                #4  0x00007f150212dd25 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x32dd25)
                #5  0x00007f1502127c40 n/a (libQt6Core.so.6 + 0x327c40)
                #6  0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #7  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #8  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58827:
                #0  0x00007f150051876d syscall (libc.so.6 + 0x11876d)
                #1  0x00007f14ff7388ee g_cond_wait (libglib-2.0.so.0 + 0x8e8ee)
                #2  0x00007f14ff6cfebd n/a (libglib-2.0.so.0 + 0x25ebd)
                #3  0x00007f14ff6cff2d g_async_queue_pop (libglib-2.0.so.0 + 0x25f2d)
                #4  0x00007f14fb50a4fc n/a (libpangoft2-1.0.so.0 + 0xc4fc)
                #5  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #6  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #7  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58828:
                #0  0x00007f150051876d syscall (libc.so.6 + 0x11876d)
                #1  0x00007f14ff7388ee g_cond_wait (libglib-2.0.so.0 + 0x8e8ee)
                #2  0x00007f14ff6cfebd n/a (libglib-2.0.so.0 + 0x25ebd)
                #3  0x00007f14ff741547 n/a (libglib-2.0.so.0 + 0x97547)
                #4  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #5  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #6  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58826:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050d4ee __poll (libc.so.6 + 0x10d4ee)
                #4  0x00007f150243520b n/a (libxcb.so.1 + 0xd20b)
                #5  0x00007f1502436f3d xcb_wait_for_event (libxcb.so.1 + 0xef3d)
                #6  0x00007f14fcb616e9 n/a (libQt6XcbQpa.so.6 + 0x566e9)
                #7  0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #8  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #9  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58830:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050da36 ppoll (libc.so.6 + 0x10da36)
                #4  0x00007f14ff709e04 n/a (libglib-2.0.so.0 + 0x5fe04)
                #5  0x00007f14ff70a097 g_main_loop_run (libglib-2.0.so.0 + 0x60097)
                #6  0x00007f14fad49fe4 n/a (libgio-2.0.so.0 + 0x117fe4)
                #7  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #8  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #9  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58829:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050da36 ppoll (libc.so.6 + 0x10da36)
                #4  0x00007f14ff709e04 n/a (libglib-2.0.so.0 + 0x5fe04)
                #5  0x00007f14ff709ee5 g_main_context_iteration (libglib-2.0.so.0 + 0x5fee5)
                #6  0x00007f14ff709f32 n/a (libglib-2.0.so.0 + 0x5ff32)
                #7  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #8  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #9  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                ELF object binary architecture: AMD x86-64
More than one entry matches, ignoring rest.
[@ ~]$ sudo coredumpctl debug /usr/lib/virtualbox/VirtualBox
           PID: 58813 (VirtualBox)
           UID: 1000 ()
           GID: 1000 ()
        Signal: 11 (SEGV)
     Timestamp: Wed 2025-08-27 10:00:45 UTC (1 day 20h ago)
  Command Line: /usr/lib/virtualbox/VirtualBox
    Executable: /usr/lib/virtualbox/VirtualBox
 Control Group: /user.slice/user-1000.slice/session-2.scope
          Unit: session-2.scope
         Slice: user-1000.slice
       Session: 2
     Owner UID: 1000 ()
       Boot ID: 05a271021bc5402c8ccc2064c4df8420
    Machine ID: 5c9c614716c847d8a6d46bd620ea5b33
      Hostname: 
       Storage: /var/lib/systemd/coredump/core.VirtualBox.1000.05a271021bc5402c8ccc2064c4df8420.58813.1756288845000000.zst (present)
  Size on Disk: 5.8M
       Message: Process 58813 (VirtualBox) of user 1000 dumped core.
                
                Stack trace of thread 58813:
                #0  0x00007f1502e841a8 _ZN20UINotificationCenter6appendEP20UINotificationObject (UICommon.so + 0x4841a8)
                #1  0x00007f1502e96b61 _ZN21UINotificationMessage13createMessageERK7QStringS2_S2_S2_P20UINotificationCenter (UICommon.so + 0x496b61)
                #2  0x00007f1502e9b99e _ZN21UINotificationMessage32cannotAcquireVirtualBoxParameterERK11CVirtualBoxP20UINotificationCenter (UICommon.so + 0x49b99e)
                #3  0x000055933c1d536c n/a (/usr/lib/virtualbox/VirtualBox + 0x11936c)
                #4  0x000055933c1d704a n/a (/usr/lib/virtualbox/VirtualBox + 0x11b04a)
                #5  0x000055933c1e74dc n/a (/usr/lib/virtualbox/VirtualBox + 0x12b4dc)
                #6  0x000055933c1c0cd5 n/a (/usr/lib/virtualbox/VirtualBox + 0x104cd5)
                #7  0x000055933c1c1410 n/a (/usr/lib/virtualbox/VirtualBox + 0x105410)
                #8  0x000055933c1b3a1d n/a (/usr/lib/virtualbox/VirtualBox + 0xf7a1d)
                #9  0x000055933c1b3cbc n/a (/usr/lib/virtualbox/VirtualBox + 0xf7cbc)
                #10 0x000055933c19ca6f n/a (/usr/lib/virtualbox/VirtualBox + 0xe0a6f)
                #11 0x00007f1501fc0e34 _ZN7QObject5eventEP6QEvent (libQt6Core.so.6 + 0x1c0e34)
                #12 0x00007f1500d01c70 _ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt6Widgets.so.6 + 0x101c70)
                #13 0x00007f1501f68118 _ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt6Core.so.6 + 0x168118)
                #14 0x00007f1501f684fb _ZN23QCoreApplicationPrivate16sendPostedEventsEP7QObjectiP11QThreadData (libQt6Core.so.6 + 0x1684fb)
                #15 0x00007f150223fcf8 n/a (libQt6Core.so.6 + 0x43fcf8)
                #16 0x00007f14ff708880 n/a (libglib-2.0.so.0 + 0x5e880)
                #17 0x00007f14ff709cd7 n/a (libglib-2.0.so.0 + 0x5fcd7)
                #18 0x00007f14ff709ee5 g_main_context_iteration (libglib-2.0.so.0 + 0x5fee5)
                #19 0x00007f150223c5e2 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x43c5e2)
                #20 0x00007f1501f744b6 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x1744b6)
                #21 0x00007f1501f6c7c1 _ZN16QCoreApplication4execEv (libQt6Core.so.6 + 0x16c7c1)
                #22 0x000055933c178fdc n/a (/usr/lib/virtualbox/VirtualBox + 0xbcfdc)
                #23 0x000055933c173732 n/a (/usr/lib/virtualbox/VirtualBox + 0xb7732)
                #24 0x00007f1500427675 n/a (libc.so.6 + 0x27675)
                #25 0x00007f1500427729 __libc_start_main (libc.so.6 + 0x27729)
                #26 0x000055933c178405 n/a (/usr/lib/virtualbox/VirtualBox + 0xbc405)
                
                Stack trace of thread 58825:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050da36 ppoll (libc.so.6 + 0x10da36)
                #4  0x00007f14ff709e04 n/a (libglib-2.0.so.0 + 0x5fe04)
                #5  0x00007f14ff709ee5 g_main_context_iteration (libglib-2.0.so.0 + 0x5fee5)
                #6  0x00007f150223c5e2 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x43c5e2)
                #7  0x00007f1501f744b6 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x1744b6)
                #8  0x00007f15020873c6 _ZN7QThread4execEv (libQt6Core.so.6 + 0x2873c6)
                #9  0x00007f1501d7adae n/a (libQt6DBus.so.6 + 0x37dae)
                #10 0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #11 0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #12 0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58838:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f150049381c n/a (libc.so.6 + 0x9381c)
                #3  0x00007f1500495ede pthread_cond_wait (libc.so.6 + 0x95ede)
                #4  0x00007f1502854864 n/a (VBoxRT.so + 0x254864)
                #5  0x00007f150278ac53 RTReqQueueProcess (VBoxRT.so + 0x18ac53)
                #6  0x00007f1502852407 n/a (VBoxRT.so + 0x252407)
                #7  0x00007f150278db00 n/a (VBoxRT.so + 0x18db00)
                #8  0x00007f1502852894 n/a (VBoxRT.so + 0x252894)
                #9  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #10 0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58852:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f150049381c n/a (libc.so.6 + 0x9381c)
                #3  0x00007f15004960e8 pthread_cond_timedwait (libc.so.6 + 0x960e8)
                #4  0x00007f150212dd25 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x32dd25)
                #5  0x00007f1502127c40 n/a (libQt6Core.so.6 + 0x327c40)
                #6  0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #7  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #8  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58839:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050d4ee __poll (libc.so.6 + 0x10d4ee)
                #4  0x00007f15027fbdda n/a (VBoxRT.so + 0x1fbdda)
                #5  0x00007f15027fbf71 RTPoll (VBoxRT.so + 0x1fbf71)
                #6  0x00007f14f801c207 n/a (VBoxXPCOMIPCC.so + 0x1a207)
                #7  0x00007f150278db00 n/a (VBoxRT.so + 0x18db00)
                #8  0x00007f1502852894 n/a (VBoxRT.so + 0x252894)
                #9  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #10 0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58851:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f150049381c n/a (libc.so.6 + 0x9381c)
                #3  0x00007f15004960e8 pthread_cond_timedwait (libc.so.6 + 0x960e8)
                #4  0x00007f150212dd25 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x32dd25)
                #5  0x00007f1502127c40 n/a (libQt6Core.so.6 + 0x327c40)
                #6  0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #7  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #8  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58827:
                #0  0x00007f150051876d syscall (libc.so.6 + 0x11876d)
                #1  0x00007f14ff7388ee g_cond_wait (libglib-2.0.so.0 + 0x8e8ee)
                #2  0x00007f14ff6cfebd n/a (libglib-2.0.so.0 + 0x25ebd)
                #3  0x00007f14ff6cff2d g_async_queue_pop (libglib-2.0.so.0 + 0x25f2d)
                #4  0x00007f14fb50a4fc n/a (libpangoft2-1.0.so.0 + 0xc4fc)
                #5  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #6  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #7  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58828:
                #0  0x00007f150051876d syscall (libc.so.6 + 0x11876d)
                #1  0x00007f14ff7388ee g_cond_wait (libglib-2.0.so.0 + 0x8e8ee)
                #2  0x00007f14ff6cfebd n/a (libglib-2.0.so.0 + 0x25ebd)
                #3  0x00007f14ff741547 n/a (libglib-2.0.so.0 + 0x97547)
                #4  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #5  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #6  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58826:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050d4ee __poll (libc.so.6 + 0x10d4ee)
                #4  0x00007f150243520b n/a (libxcb.so.1 + 0xd20b)
                #5  0x00007f1502436f3d xcb_wait_for_event (libxcb.so.1 + 0xef3d)
                #6  0x00007f14fcb616e9 n/a (libQt6XcbQpa.so.6 + 0x566e9)
                #7  0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #8  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #9  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58830:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050da36 ppoll (libc.so.6 + 0x10da36)
                #4  0x00007f14ff709e04 n/a (libglib-2.0.so.0 + 0x5fe04)
                #5  0x00007f14ff70a097 g_main_loop_run (libglib-2.0.so.0 + 0x60097)
                #6  0x00007f14fad49fe4 n/a (libgio-2.0.so.0 + 0x117fe4)
                #7  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #8  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #9  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58829:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050da36 ppoll (libc.so.6 + 0x10da36)
                #4  0x00007f14ff709e04 n/a (libglib-2.0.so.0 + 0x5fe04)
                #5  0x00007f14ff709ee5 g_main_context_iteration (libglib-2.0.so.0 + 0x5fee5)
                #6  0x00007f14ff709f32 n/a (libglib-2.0.so.0 + 0x5ff32)
                #7  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #8  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #9  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                ELF object binary architecture: AMD x86-64

Failed to invoke gdb: No such file or directory
[@ ~]$ sudo coredumpctl debug /usr/lib/virtualbox/VirtualBox > d/tempShellOP02
Failed to invoke gdb: No such file or directory
[@ ~]$ sudo coredumpctl dump /usr/lib/virtualbox/VirtualBox
           PID: 58813 (VirtualBox)
           UID: 1000 ()
           GID: 1000 ()
        Signal: 11 (SEGV)
     Timestamp: Wed 2025-08-27 10:00:45 UTC (1 day 20h ago)
  Command Line: /usr/lib/virtualbox/VirtualBox
    Executable: /usr/lib/virtualbox/VirtualBox
 Control Group: /user.slice/user-1000.slice/session-2.scope
          Unit: session-2.scope
         Slice: user-1000.slice
       Session: 2
     Owner UID: 1000 ()
       Boot ID: 05a271021bc5402c8ccc2064c4df8420
    Machine ID: 5c9c614716c847d8a6d46bd620ea5b33
      Hostname: 
       Storage: /var/lib/systemd/coredump/core.VirtualBox.1000.05a271021bc5402c8ccc2064c4df8420.58813.1756288845000000.zst (present)
  Size on Disk: 5.8M
       Message: Process 58813 (VirtualBox) of user 1000 dumped core.
                
                Stack trace of thread 58813:
                #0  0x00007f1502e841a8 _ZN20UINotificationCenter6appendEP20UINotificationObject (UICommon.so + 0x4841a8)
                #1  0x00007f1502e96b61 _ZN21UINotificationMessage13createMessageERK7QStringS2_S2_S2_P20UINotificationCenter (UICommon.so + 0x496b61)
                #2  0x00007f1502e9b99e _ZN21UINotificationMessage32cannotAcquireVirtualBoxParameterERK11CVirtualBoxP20UINotificationCenter (UICommon.so + 0x49b99e)
                #3  0x000055933c1d536c n/a (/usr/lib/virtualbox/VirtualBox + 0x11936c)
                #4  0x000055933c1d704a n/a (/usr/lib/virtualbox/VirtualBox + 0x11b04a)
                #5  0x000055933c1e74dc n/a (/usr/lib/virtualbox/VirtualBox + 0x12b4dc)
                #6  0x000055933c1c0cd5 n/a (/usr/lib/virtualbox/VirtualBox + 0x104cd5)
                #7  0x000055933c1c1410 n/a (/usr/lib/virtualbox/VirtualBox + 0x105410)
                #8  0x000055933c1b3a1d n/a (/usr/lib/virtualbox/VirtualBox + 0xf7a1d)
                #9  0x000055933c1b3cbc n/a (/usr/lib/virtualbox/VirtualBox + 0xf7cbc)
                #10 0x000055933c19ca6f n/a (/usr/lib/virtualbox/VirtualBox + 0xe0a6f)
                #11 0x00007f1501fc0e34 _ZN7QObject5eventEP6QEvent (libQt6Core.so.6 + 0x1c0e34)
                #12 0x00007f1500d01c70 _ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt6Widgets.so.6 + 0x101c70)
                #13 0x00007f1501f68118 _ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt6Core.so.6 + 0x168118)
                #14 0x00007f1501f684fb _ZN23QCoreApplicationPrivate16sendPostedEventsEP7QObjectiP11QThreadData (libQt6Core.so.6 + 0x1684fb)
                #15 0x00007f150223fcf8 n/a (libQt6Core.so.6 + 0x43fcf8)
                #16 0x00007f14ff708880 n/a (libglib-2.0.so.0 + 0x5e880)
                #17 0x00007f14ff709cd7 n/a (libglib-2.0.so.0 + 0x5fcd7)
                #18 0x00007f14ff709ee5 g_main_context_iteration (libglib-2.0.so.0 + 0x5fee5)
                #19 0x00007f150223c5e2 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x43c5e2)
                #20 0x00007f1501f744b6 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x1744b6)
                #21 0x00007f1501f6c7c1 _ZN16QCoreApplication4execEv (libQt6Core.so.6 + 0x16c7c1)
                #22 0x000055933c178fdc n/a (/usr/lib/virtualbox/VirtualBox + 0xbcfdc)
                #23 0x000055933c173732 n/a (/usr/lib/virtualbox/VirtualBox + 0xb7732)
                #24 0x00007f1500427675 n/a (libc.so.6 + 0x27675)
                #25 0x00007f1500427729 __libc_start_main (libc.so.6 + 0x27729)
                #26 0x000055933c178405 n/a (/usr/lib/virtualbox/VirtualBox + 0xbc405)
                
                Stack trace of thread 58825:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050da36 ppoll (libc.so.6 + 0x10da36)
                #4  0x00007f14ff709e04 n/a (libglib-2.0.so.0 + 0x5fe04)
                #5  0x00007f14ff709ee5 g_main_context_iteration (libglib-2.0.so.0 + 0x5fee5)
                #6  0x00007f150223c5e2 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x43c5e2)
                #7  0x00007f1501f744b6 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x1744b6)
                #8  0x00007f15020873c6 _ZN7QThread4execEv (libQt6Core.so.6 + 0x2873c6)
                #9  0x00007f1501d7adae n/a (libQt6DBus.so.6 + 0x37dae)
                #10 0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #11 0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #12 0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58838:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f150049381c n/a (libc.so.6 + 0x9381c)
                #3  0x00007f1500495ede pthread_cond_wait (libc.so.6 + 0x95ede)
                #4  0x00007f1502854864 n/a (VBoxRT.so + 0x254864)
                #5  0x00007f150278ac53 RTReqQueueProcess (VBoxRT.so + 0x18ac53)
                #6  0x00007f1502852407 n/a (VBoxRT.so + 0x252407)
                #7  0x00007f150278db00 n/a (VBoxRT.so + 0x18db00)
                #8  0x00007f1502852894 n/a (VBoxRT.so + 0x252894)
                #9  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #10 0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58852:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f150049381c n/a (libc.so.6 + 0x9381c)
                #3  0x00007f15004960e8 pthread_cond_timedwait (libc.so.6 + 0x960e8)
                #4  0x00007f150212dd25 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x32dd25)
                #5  0x00007f1502127c40 n/a (libQt6Core.so.6 + 0x327c40)
                #6  0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #7  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #8  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58839:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050d4ee __poll (libc.so.6 + 0x10d4ee)
                #4  0x00007f15027fbdda n/a (VBoxRT.so + 0x1fbdda)
                #5  0x00007f15027fbf71 RTPoll (VBoxRT.so + 0x1fbf71)
                #6  0x00007f14f801c207 n/a (VBoxXPCOMIPCC.so + 0x1a207)
                #7  0x00007f150278db00 n/a (VBoxRT.so + 0x18db00)
                #8  0x00007f1502852894 n/a (VBoxRT.so + 0x252894)
                #9  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #10 0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58851:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f150049381c n/a (libc.so.6 + 0x9381c)
                #3  0x00007f15004960e8 pthread_cond_timedwait (libc.so.6 + 0x960e8)
                #4  0x00007f150212dd25 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x32dd25)
                #5  0x00007f1502127c40 n/a (libQt6Core.so.6 + 0x327c40)
                #6  0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #7  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #8  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58827:
                #0  0x00007f150051876d syscall (libc.so.6 + 0x11876d)
                #1  0x00007f14ff7388ee g_cond_wait (libglib-2.0.so.0 + 0x8e8ee)
                #2  0x00007f14ff6cfebd n/a (libglib-2.0.so.0 + 0x25ebd)
                #3  0x00007f14ff6cff2d g_async_queue_pop (libglib-2.0.so.0 + 0x25f2d)
                #4  0x00007f14fb50a4fc n/a (libpangoft2-1.0.so.0 + 0xc4fc)
                #5  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #6  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #7  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58828:
                #0  0x00007f150051876d syscall (libc.so.6 + 0x11876d)
                #1  0x00007f14ff7388ee g_cond_wait (libglib-2.0.so.0 + 0x8e8ee)
                #2  0x00007f14ff6cfebd n/a (libglib-2.0.so.0 + 0x25ebd)
                #3  0x00007f14ff741547 n/a (libglib-2.0.so.0 + 0x97547)
                #4  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #5  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #6  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58826:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050d4ee __poll (libc.so.6 + 0x10d4ee)
                #4  0x00007f150243520b n/a (libxcb.so.1 + 0xd20b)
                #5  0x00007f1502436f3d xcb_wait_for_event (libxcb.so.1 + 0xef3d)
                #6  0x00007f14fcb616e9 n/a (libQt6XcbQpa.so.6 + 0x566e9)
                #7  0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #8  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #9  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58830:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050da36 ppoll (libc.so.6 + 0x10da36)
                #4  0x00007f14ff709e04 n/a (libglib-2.0.so.0 + 0x5fe04)
                #5  0x00007f14ff70a097 g_main_loop_run (libglib-2.0.so.0 + 0x60097)
                #6  0x00007f14fad49fe4 n/a (libgio-2.0.so.0 + 0x117fe4)
                #7  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #8  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #9  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58829:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050da36 ppoll (libc.so.6 + 0x10da36)
                #4  0x00007f14ff709e04 n/a (libglib-2.0.so.0 + 0x5fe04)
                #5  0x00007f14ff709ee5 g_main_context_iteration (libglib-2.0.so.0 + 0x5fee5)
                #6  0x00007f14ff709f32 n/a (libglib-2.0.so.0 + 0x5ff32)
                #7  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #8  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #9  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                ELF object binary architecture: AMD x86-64
Refusing to dump core to tty (use shell redirection or specify --output).
[@ ~]$ 
[@ ~]$ sudo coredumpctl dump /usr/lib/virtualbox/VirtualBox
           PID: 58813 (VirtualBox)
           UID: 1000 ()
           GID: 1000 ()
        Signal: 11 (SEGV)
     Timestamp: Wed 2025-08-27 10:00:45 UTC (1 day 20h ago)
  Command Line: /usr/lib/virtualbox/VirtualBox
    Executable: /usr/lib/virtualbox/VirtualBox
 Control Group: /user.slice/user-1000.slice/session-2.scope
          Unit: session-2.scope
         Slice: user-1000.slice
       Session: 2
     Owner UID: 1000 ()
       Boot ID: 05a271021bc5402c8ccc2064c4df8420
    Machine ID: 5c9c614716c847d8a6d46bd620ea5b33
      
       Storage: /var/lib/systemd/coredump/core.VirtualBox.1000.05a271021bc5402c8ccc2064c4df8420.58813.1756288845000000.zst (present)
  Size on Disk: 5.8M
       Message: Process 58813 (VirtualBox) of user 1000 dumped core.
                
                Stack trace of thread 58813:
                #0  0x00007f1502e841a8 _ZN20UINotificationCenter6appendEP20UINotificationObject (UICommon.so + 0x4841a8)
                #1  0x00007f1502e96b61 _ZN21UINotificationMessage13createMessageERK7QStringS2_S2_S2_P20UINotificationCenter (UICommon.so + 0x496b61)
                #2  0x00007f1502e9b99e _ZN21UINotificationMessage32cannotAcquireVirtualBoxParameterERK11CVirtualBoxP20UINotificationCenter (UICommon.so + 0x49b99e)
                #3  0x000055933c1d536c n/a (/usr/lib/virtualbox/VirtualBox + 0x11936c)
                #4  0x000055933c1d704a n/a (/usr/lib/virtualbox/VirtualBox + 0x11b04a)
                #5  0x000055933c1e74dc n/a (/usr/lib/virtualbox/VirtualBox + 0x12b4dc)
                #6  0x000055933c1c0cd5 n/a (/usr/lib/virtualbox/VirtualBox + 0x104cd5)
                #7  0x000055933c1c1410 n/a (/usr/lib/virtualbox/VirtualBox + 0x105410)
                #8  0x000055933c1b3a1d n/a (/usr/lib/virtualbox/VirtualBox + 0xf7a1d)
                #9  0x000055933c1b3cbc n/a (/usr/lib/virtualbox/VirtualBox + 0xf7cbc)
                #10 0x000055933c19ca6f n/a (/usr/lib/virtualbox/VirtualBox + 0xe0a6f)
                #11 0x00007f1501fc0e34 _ZN7QObject5eventEP6QEvent (libQt6Core.so.6 + 0x1c0e34)
                #12 0x00007f1500d01c70 _ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt6Widgets.so.6 + 0x101c70)
                #13 0x00007f1501f68118 _ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt6Core.so.6 + 0x168118)
                #14 0x00007f1501f684fb _ZN23QCoreApplicationPrivate16sendPostedEventsEP7QObjectiP11QThreadData (libQt6Core.so.6 + 0x1684fb)
                #15 0x00007f150223fcf8 n/a (libQt6Core.so.6 + 0x43fcf8)
                #16 0x00007f14ff708880 n/a (libglib-2.0.so.0 + 0x5e880)
                #17 0x00007f14ff709cd7 n/a (libglib-2.0.so.0 + 0x5fcd7)
                #18 0x00007f14ff709ee5 g_main_context_iteration (libglib-2.0.so.0 + 0x5fee5)
                #19 0x00007f150223c5e2 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x43c5e2)
                #20 0x00007f1501f744b6 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x1744b6)
                #21 0x00007f1501f6c7c1 _ZN16QCoreApplication4execEv (libQt6Core.so.6 + 0x16c7c1)
                #22 0x000055933c178fdc n/a (/usr/lib/virtualbox/VirtualBox + 0xbcfdc)
                #23 0x000055933c173732 n/a (/usr/lib/virtualbox/VirtualBox + 0xb7732)
                #24 0x00007f1500427675 n/a (libc.so.6 + 0x27675)
                #25 0x00007f1500427729 __libc_start_main (libc.so.6 + 0x27729)
                #26 0x000055933c178405 n/a (/usr/lib/virtualbox/VirtualBox + 0xbc405)
                
                Stack trace of thread 58825:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050da36 ppoll (libc.so.6 + 0x10da36)
                #4  0x00007f14ff709e04 n/a (libglib-2.0.so.0 + 0x5fe04)
                #5  0x00007f14ff709ee5 g_main_context_iteration (libglib-2.0.so.0 + 0x5fee5)
                #6  0x00007f150223c5e2 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x43c5e2)
                #7  0x00007f1501f744b6 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x1744b6)
                #8  0x00007f15020873c6 _ZN7QThread4execEv (libQt6Core.so.6 + 0x2873c6)
                #9  0x00007f1501d7adae n/a (libQt6DBus.so.6 + 0x37dae)
                #10 0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #11 0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #12 0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58838:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f150049381c n/a (libc.so.6 + 0x9381c)
                #3  0x00007f1500495ede pthread_cond_wait (libc.so.6 + 0x95ede)
                #4  0x00007f1502854864 n/a (VBoxRT.so + 0x254864)
                #5  0x00007f150278ac53 RTReqQueueProcess (VBoxRT.so + 0x18ac53)
                #6  0x00007f1502852407 n/a (VBoxRT.so + 0x252407)
                #7  0x00007f150278db00 n/a (VBoxRT.so + 0x18db00)
                #8  0x00007f1502852894 n/a (VBoxRT.so + 0x252894)
                #9  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #10 0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58852:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f150049381c n/a (libc.so.6 + 0x9381c)
                #3  0x00007f15004960e8 pthread_cond_timedwait (libc.so.6 + 0x960e8)
                #4  0x00007f150212dd25 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x32dd25)
                #5  0x00007f1502127c40 n/a (libQt6Core.so.6 + 0x327c40)
                #6  0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #7  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #8  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58839:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050d4ee __poll (libc.so.6 + 0x10d4ee)
                #4  0x00007f15027fbdda n/a (VBoxRT.so + 0x1fbdda)
                #5  0x00007f15027fbf71 RTPoll (VBoxRT.so + 0x1fbf71)
                #6  0x00007f14f801c207 n/a (VBoxXPCOMIPCC.so + 0x1a207)
                #7  0x00007f150278db00 n/a (VBoxRT.so + 0x18db00)
                #8  0x00007f1502852894 n/a (VBoxRT.so + 0x252894)
                #9  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #10 0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58851:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f150049381c n/a (libc.so.6 + 0x9381c)
                #3  0x00007f15004960e8 pthread_cond_timedwait (libc.so.6 + 0x960e8)
                #4  0x00007f150212dd25 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x32dd25)
                #5  0x00007f1502127c40 n/a (libQt6Core.so.6 + 0x327c40)
                #6  0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #7  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #8  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58827:
                #0  0x00007f150051876d syscall (libc.so.6 + 0x11876d)
                #1  0x00007f14ff7388ee g_cond_wait (libglib-2.0.so.0 + 0x8e8ee)
                #2  0x00007f14ff6cfebd n/a (libglib-2.0.so.0 + 0x25ebd)
                #3  0x00007f14ff6cff2d g_async_queue_pop (libglib-2.0.so.0 + 0x25f2d)
                #4  0x00007f14fb50a4fc n/a (libpangoft2-1.0.so.0 + 0xc4fc)
                #5  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #6  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #7  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58828:
                #0  0x00007f150051876d syscall (libc.so.6 + 0x11876d)
                #1  0x00007f14ff7388ee g_cond_wait (libglib-2.0.so.0 + 0x8e8ee)
                #2  0x00007f14ff6cfebd n/a (libglib-2.0.so.0 + 0x25ebd)
                #3  0x00007f14ff741547 n/a (libglib-2.0.so.0 + 0x97547)
                #4  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #5  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #6  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58826:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050d4ee __poll (libc.so.6 + 0x10d4ee)
                #4  0x00007f150243520b n/a (libxcb.so.1 + 0xd20b)
                #5  0x00007f1502436f3d xcb_wait_for_event (libxcb.so.1 + 0xef3d)
                #6  0x00007f14fcb616e9 n/a (libQt6XcbQpa.so.6 + 0x566e9)
                #7  0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #8  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #9  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58830:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050da36 ppoll (libc.so.6 + 0x10da36)
                #4  0x00007f14ff709e04 n/a (libglib-2.0.so.0 + 0x5fe04)
                #5  0x00007f14ff70a097 g_main_loop_run (libglib-2.0.so.0 + 0x60097)
                #6  0x00007f14fad49fe4 n/a (libgio-2.0.so.0 + 0x117fe4)
                #7  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #8  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #9  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58829:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050da36 ppoll (libc.so.6 + 0x10da36)
                #4  0x00007f14ff709e04 n/a (libglib-2.0.so.0 + 0x5fe04)
                #5  0x00007f14ff709ee5 g_main_context_iteration (libglib-2.0.so.0 + 0x5fee5)
                #6  0x00007f14ff709f32 n/a (libglib-2.0.so.0 + 0x5ff32)
                #7  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #8  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #9  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                ELF object binary architecture: AMD x86-64
Refusing to dump core to tty (use shell redirection or specify --output).

Last edited by wub (2025-08-29 07:06:48)

wub · 2025-08-29 07:05:42

Hi @xerxes_
Here is the output of the second command/call you mentioned, however:
Please note that my virtualbox packages are now downgraded and working! This might make all of these dump and debug commands redundant/pointless, as the system is effectively working as it was before the recent upgrade. I will not be upgrading again until I am sure, because it is critical for me and my little world that this works right now.

(Excuse the copypasta, but don't want anybody wasting their time going down a rabbit hole with no good reason).

sudo coredumpctl debug /usr/lib/virtualbox/VirtualBox

           PID: 58813 (VirtualBox)
           UID: 1000 
           GID: 1000 
        Signal: 11 (SEGV)
     Timestamp: Wed 2025-08-27 10:00:45 UTC (1 day 20h ago)
  Command Line: /usr/lib/virtualbox/VirtualBox
    Executable: /usr/lib/virtualbox/VirtualBox
 Control Group: /user.slice/user-1000.slice/session-2.scope
          Unit: session-2.scope
         Slice: user-1000.slice
       Session: 2
     Owner UID: 1000 
       Boot ID: 05a271021bc5402c8ccc2064c4df8420
    Machine ID: 5c9c614716c847d8a6d46bd620ea5b33
      
       Storage: /var/lib/systemd/coredump/core.VirtualBox.1000.05a271021bc5402c8ccc2064c4df8420.58813.1756288845000000.zst (present)
  Size on Disk: 5.8M
       Message: Process 58813 (VirtualBox) of user 1000 dumped core.
                
                Stack trace of thread 58813:
                #0  0x00007f1502e841a8 _ZN20UINotificationCenter6appendEP20UINotificationObject (UICommon.so + 0x4841a8)
                #1  0x00007f1502e96b61 _ZN21UINotificationMessage13createMessageERK7QStringS2_S2_S2_P20UINotificationCenter (UICommon.so + 0x496b61)
                #2  0x00007f1502e9b99e _ZN21UINotificationMessage32cannotAcquireVirtualBoxParameterERK11CVirtualBoxP20UINotificationCenter (UICommon.so + 0x49b99e)
                #3  0x000055933c1d536c n/a (/usr/lib/virtualbox/VirtualBox + 0x11936c)
                #4  0x000055933c1d704a n/a (/usr/lib/virtualbox/VirtualBox + 0x11b04a)
                #5  0x000055933c1e74dc n/a (/usr/lib/virtualbox/VirtualBox + 0x12b4dc)
                #6  0x000055933c1c0cd5 n/a (/usr/lib/virtualbox/VirtualBox + 0x104cd5)
                #7  0x000055933c1c1410 n/a (/usr/lib/virtualbox/VirtualBox + 0x105410)
                #8  0x000055933c1b3a1d n/a (/usr/lib/virtualbox/VirtualBox + 0xf7a1d)
                #9  0x000055933c1b3cbc n/a (/usr/lib/virtualbox/VirtualBox + 0xf7cbc)
                #10 0x000055933c19ca6f n/a (/usr/lib/virtualbox/VirtualBox + 0xe0a6f)
                #11 0x00007f1501fc0e34 _ZN7QObject5eventEP6QEvent (libQt6Core.so.6 + 0x1c0e34)
                #12 0x00007f1500d01c70 _ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt6Widgets.so.6 + 0x101c70)
                #13 0x00007f1501f68118 _ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt6Core.so.6 + 0x168118)
                #14 0x00007f1501f684fb _ZN23QCoreApplicationPrivate16sendPostedEventsEP7QObjectiP11QThreadData (libQt6Core.so.6 + 0x1684fb)
                #15 0x00007f150223fcf8 n/a (libQt6Core.so.6 + 0x43fcf8)
                #16 0x00007f14ff708880 n/a (libglib-2.0.so.0 + 0x5e880)
                #17 0x00007f14ff709cd7 n/a (libglib-2.0.so.0 + 0x5fcd7)
                #18 0x00007f14ff709ee5 g_main_context_iteration (libglib-2.0.so.0 + 0x5fee5)
                #19 0x00007f150223c5e2 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x43c5e2)
                #20 0x00007f1501f744b6 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x1744b6)
                #21 0x00007f1501f6c7c1 _ZN16QCoreApplication4execEv (libQt6Core.so.6 + 0x16c7c1)
                #22 0x000055933c178fdc n/a (/usr/lib/virtualbox/VirtualBox + 0xbcfdc)
                #23 0x000055933c173732 n/a (/usr/lib/virtualbox/VirtualBox + 0xb7732)
                #24 0x00007f1500427675 n/a (libc.so.6 + 0x27675)
                #25 0x00007f1500427729 __libc_start_main (libc.so.6 + 0x27729)
                #26 0x000055933c178405 n/a (/usr/lib/virtualbox/VirtualBox + 0xbc405)
                
                Stack trace of thread 58825:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050da36 ppoll (libc.so.6 + 0x10da36)
                #4  0x00007f14ff709e04 n/a (libglib-2.0.so.0 + 0x5fe04)
                #5  0x00007f14ff709ee5 g_main_context_iteration (libglib-2.0.so.0 + 0x5fee5)
                #6  0x00007f150223c5e2 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x43c5e2)
                #7  0x00007f1501f744b6 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x1744b6)
                #8  0x00007f15020873c6 _ZN7QThread4execEv (libQt6Core.so.6 + 0x2873c6)
                #9  0x00007f1501d7adae n/a (libQt6DBus.so.6 + 0x37dae)
                #10 0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #11 0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #12 0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58838:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f150049381c n/a (libc.so.6 + 0x9381c)
                #3  0x00007f1500495ede pthread_cond_wait (libc.so.6 + 0x95ede)
                #4  0x00007f1502854864 n/a (VBoxRT.so + 0x254864)
                #5  0x00007f150278ac53 RTReqQueueProcess (VBoxRT.so + 0x18ac53)
                #6  0x00007f1502852407 n/a (VBoxRT.so + 0x252407)
                #7  0x00007f150278db00 n/a (VBoxRT.so + 0x18db00)
                #8  0x00007f1502852894 n/a (VBoxRT.so + 0x252894)
                #9  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #10 0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58852:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f150049381c n/a (libc.so.6 + 0x9381c)
                #3  0x00007f15004960e8 pthread_cond_timedwait (libc.so.6 + 0x960e8)
                #4  0x00007f150212dd25 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x32dd25)
                #5  0x00007f1502127c40 n/a (libQt6Core.so.6 + 0x327c40)
                #6  0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #7  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #8  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58839:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050d4ee __poll (libc.so.6 + 0x10d4ee)
                #4  0x00007f15027fbdda n/a (VBoxRT.so + 0x1fbdda)
                #5  0x00007f15027fbf71 RTPoll (VBoxRT.so + 0x1fbf71)
                #6  0x00007f14f801c207 n/a (VBoxXPCOMIPCC.so + 0x1a207)
                #7  0x00007f150278db00 n/a (VBoxRT.so + 0x18db00)
                #8  0x00007f1502852894 n/a (VBoxRT.so + 0x252894)
                #9  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #10 0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58851:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f150049381c n/a (libc.so.6 + 0x9381c)
                #3  0x00007f15004960e8 pthread_cond_timedwait (libc.so.6 + 0x960e8)
                #4  0x00007f150212dd25 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x32dd25)
                #5  0x00007f1502127c40 n/a (libQt6Core.so.6 + 0x327c40)
                #6  0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #7  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #8  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58827:
                #0  0x00007f150051876d syscall (libc.so.6 + 0x11876d)
                #1  0x00007f14ff7388ee g_cond_wait (libglib-2.0.so.0 + 0x8e8ee)
                #2  0x00007f14ff6cfebd n/a (libglib-2.0.so.0 + 0x25ebd)
                #3  0x00007f14ff6cff2d g_async_queue_pop (libglib-2.0.so.0 + 0x25f2d)
                #4  0x00007f14fb50a4fc n/a (libpangoft2-1.0.so.0 + 0xc4fc)
                #5  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #6  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #7  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58828:
                #0  0x00007f150051876d syscall (libc.so.6 + 0x11876d)
                #1  0x00007f14ff7388ee g_cond_wait (libglib-2.0.so.0 + 0x8e8ee)
                #2  0x00007f14ff6cfebd n/a (libglib-2.0.so.0 + 0x25ebd)
                #3  0x00007f14ff741547 n/a (libglib-2.0.so.0 + 0x97547)
                #4  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #5  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #6  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58826:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050d4ee __poll (libc.so.6 + 0x10d4ee)
                #4  0x00007f150243520b n/a (libxcb.so.1 + 0xd20b)
                #5  0x00007f1502436f3d xcb_wait_for_event (libxcb.so.1 + 0xef3d)
                #6  0x00007f14fcb616e9 n/a (libQt6XcbQpa.so.6 + 0x566e9)
                #7  0x00007f150211ee69 n/a (libQt6Core.so.6 + 0x31ee69)
                #8  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #9  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58830:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050da36 ppoll (libc.so.6 + 0x10da36)
                #4  0x00007f14ff709e04 n/a (libglib-2.0.so.0 + 0x5fe04)
                #5  0x00007f14ff70a097 g_main_loop_run (libglib-2.0.so.0 + 0x60097)
                #6  0x00007f14fad49fe4 n/a (libgio-2.0.so.0 + 0x117fe4)
                #7  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #8  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #9  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                
                Stack trace of thread 58829:
                #0  0x00007f150049f042 n/a (libc.so.6 + 0x9f042)
                #1  0x00007f15004931ac n/a (libc.so.6 + 0x931ac)
                #2  0x00007f15004931f4 n/a (libc.so.6 + 0x931f4)
                #3  0x00007f150050da36 ppoll (libc.so.6 + 0x10da36)
                #4  0x00007f14ff709e04 n/a (libglib-2.0.so.0 + 0x5fe04)
                #5  0x00007f14ff709ee5 g_main_context_iteration (libglib-2.0.so.0 + 0x5fee5)
                #6  0x00007f14ff709f32 n/a (libglib-2.0.so.0 + 0x5ff32)
                #7  0x00007f14ff74097c n/a (libglib-2.0.so.0 + 0x9697c)
                #8  0x00007f15004969cb n/a (libc.so.6 + 0x969cb)
                #9  0x00007f150051aa0c n/a (libc.so.6 + 0x11aa0c)
                ELF object binary architecture: AMD x86-64

Last edited by wub (2025-08-29 07:07:55)

seth · 2025-08-29 07:19:33

https://bbs.archlinux.org/viewtopic.php?id=307652
https://github.com/VirtualBox/virtualbo … 6482712258

xerxes_ · 2025-08-29 11:07:25

@wub

You can also manage Virtualbox from command line:
https://www.virtualbox.org/manual/ch08.html
https://www.oracle.com/technical-resour … x-cli.html
https://computingforgeeks.com/manage-vi … boxmanage/

wub · 2025-08-31 10:33:19

@seth
Thank you for the extra information. How did I miss that thread? I guess I didn't know it was a coredump until later. Plus (obviously) I have zero troubleshooting experience on this. Is the git commit something to do with the source of this problem?

@xerxes_
Thanks for that. I was aware of this, and the terminal is a much better way to do things, but at the moment, I'm just trying to do things the "for dummies" way, until I have more time open.
When I previously had more time, I was actually hoping to use incus which is all setup through the command line (I don't think it has a GUI option), or libvirt, which can also be all CLI (and the GUI tools are lacking, so terminal is the only way to go).
Unfortunately, I couldn't get incus going (I started a thread about that on these forums. Problems with storage pools and conflicting error return messages), and just ran out of time with the libvirt stuff.

seth · 2025-08-31 11:56:20

The bug is a race condition and the linked git commit supposed to fix that, until it's released and the release hits the repos, downgrading is probably your best option.
(The alternative would be to build VB from git, on cursory check there's no AUR package covering that)

Please always remember to mark resolved threads by editing your initial posts subject - so others will know that there's no task left, but maybe a solution to find.
Thanks.

Arch Linux

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RESOLVED virtualbox segfault ANY kind of reliable VM needed badly

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Re: RESOLVED virtualbox segfault ANY kind of reliable VM needed badly

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Re: RESOLVED virtualbox segfault ANY kind of reliable VM needed badly

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Re: RESOLVED virtualbox segfault ANY kind of reliable VM needed badly

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Re: RESOLVED virtualbox segfault ANY kind of reliable VM needed badly

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Re: RESOLVED virtualbox segfault ANY kind of reliable VM needed badly

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Re: RESOLVED virtualbox segfault ANY kind of reliable VM needed badly

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Re: RESOLVED virtualbox segfault ANY kind of reliable VM needed badly

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Re: RESOLVED virtualbox segfault ANY kind of reliable VM needed badly

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