Probably caused by you booting with 'noapic' (fixed in kernel 6.13.x): https://github.com/torvalds/linux/commit/73da582a476ea6e3512f89f8ed57dfed945829a2
A Fedora user found things worked when they switched noapic to pci=nobar ** Summary changed: - linux-generic-hwe-24.04 version 6.11.0-19.19~24.04.1 fail to properly detect CPU core and thread count + linux-generic-hwe-24.04 version 6.11.0-19.19~24.04.1 fail to properly detect CPU core and thread count with 'noapic' -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2100999 Title: linux-generic-hwe-24.04 version 6.11.0-19.19~24.04.1 fail to properly detect CPU core and thread count with 'noapic' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-meta-hwe-6.11/+bug/2100999/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
