Not a kernel bug. in fact this is a problem with the virtio graphics driver with 3d activated, and it is not related to kernel version. Reverting to non 3D graphics completely removes the problem. I am trying to work out which update caused this, but I doubt it is the kernel. In case this bug report comes up in search, the ontext is virt-manager and I have the kisak fresh mesa PPA (so not official 24.04 graphics stack, although point releases of Ubuntu move to newer mesa, so if it is a mesa bug it might be destined for 24.04 users anyway). I have tried latest upstream virt-manger (the client app) and the problem is the same.
On Thu, 11 Sept 2025 at 04:55, Alice C. Munduruca < [email protected]> wrote: > Hi Tim, > > From your description it seems like this problem only cropped up > recently, can you let us know the most recent known-good kernel version? > Running the following command would also help us get diagnostics info to > track down this bug. > > $ sudo apport-collect 2122372 > > Thanks for submitting the bug report! > > ** Also affects: linux (Ubuntu Noble) > Importance: Undecided > Status: New > > ** Changed in: linux (Ubuntu Noble) > Status: New => Incomplete > > ** Changed in: linux (Ubuntu) > Status: New => Incomplete > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/2122372 > > Title: > 6.8 and 6.14 kernels massive shared memory bug > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2122372/+subscriptions > > -- Tim Richardson -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2122372 Title: 6.8 and 6.14 kernels massive shared memory bug To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2122372/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
