I haven’t been able to find a definite answer, but the best I can tell VirtualBox 7.2 fixed the kvm sharing problems only for kernels 6.16 & newer. One post I found said they were going to fix it for 6.12 forward, but I cannot find any confirmation that they did. So- kernels 6.12-6.15 still might have to use the blacklist work around.
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Does anyone know if this problem extends beyond Ubuntu?
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Hello Friends
Tim
Huge Thanks for your feedback! 
László
Gnome Boxes is just another GUI on top of KVM/Qemu, Virtmanager is a more sophisticated implementation.
Thanks for that information
Virtualbox on the other hand is a complete solution, from virtualization drivers up to the GUI.
Agree and multi platform
Yes, it is incompatible with KVM, recently there were other problems -starting with Debian 13.
Correct. I read a post about that in Debian official forum but if my memory does not fail me the modprobe “blacklist” should work
I tried Virtmanager (KVM/Qemu), and while it performs slightly better than Virtualbox, the ease of use network, especially to create bridged network cards for guests, makes me Virtualbox the #1 solution.
I remember read that few times in this network, because I use the LAN a lot, it is a concern for me
Joel
I haven’t been able to find a definite answer
I didn’t try it yet but it seems the quick solution is modprobe “blacklist”. It if VirtualBox is the unique app installed for Virtualization
but the best I can tell VirtualBox 7.2 fixed the kvm sharing problems only for kernels 6.16 & newer.
At least it is already resolved but Oracle itself
One post I found said they were going to fix it for 6.12 forward, but I cannot find any confirmation that they did
Understood, therefore without official confirmation
So- kernels 6.12-6.15 still might have to use the blacklist work around.
Ok
Best to all
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I thought someone said they had the same issue with Debian.
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Cant find it, but it is likely… the .deb package is at fault.
I wonder how Arch of Void or Gentoo would go.?
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33 posts were split to a new topic: Bridge connection in Virt Manager
A post was merged into an existing topic: Bridge connection in Virt Manager
All of the discussion from here that was virtmanager only has been moved to a new topic.
This topic should be kept for Vbox problems.
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@pdecker
Apologies, we diverted your topic
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Late to discussion. But a quick search on the web show a few problems with kernel 6.17.
I was trying to solve a problem with my WiFi and was told by AI to not install kernel 6.17, but to upgrade from kernel 6.8 to 6.14. It might be way off base, but thought I would share what I read.
Good Luck.
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Thank you sooooo much for sharing this with the community. I had the exact same issue but I was dreading the thought of spending hours on this issue. Just no time for it. You post, cut that down on a few minutes. Very grateful.
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Hi Karl and welcome.
Hopefully you too will be in a position in future to contribute yourself to aid others just as you have been on this one.
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