Public bug reported: Regression from https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2051560, but I'm not sure exactly when it happened.
root@p-perf:~# uname -a Linux p-perf 6.14.0-10-generic #10-Ubuntu SMP PREEMPT_DYNAMIC Wed Mar 12 16:07:00 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux root@p-perf:~# python3 -c 'import perf; [print(c) for c in perf.cpu_map()]' Traceback (most recent call last): File "<string>", line 1, in <module> import perf; [print(c) for c in perf.cpu_map()] ^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/perf/__init__.py", line 23, in <module> raise KernelNotFoundError() perf.KernelNotFoundError: WARNING: python perf module not found for kernel 6.14.0-10-generic You may need to install the following package for this specific kernel: linux-tools-6.14.0-10-generic You may also want to install the following package to keep up to date: linux-tools-generic root@p-perf:~# dpkg -l linux-tools-6.14.0-10-generic Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-=============================-============-============-========================================================= ii linux-tools-6.14.0-10-generic 6.14.0-10.10 amd64 Linux kernel version specific tools for version 6.14.0-10 # ls -la /usr/lib/linux-tools/6.14.0-10-generic/ total 3728 drwxr-xr-x 2 root root 4096 Mar 18 13:54 . drwxr-xr-x 77 root root 4096 Mar 19 19:58 .. -rwxr-xr-x 1 root root 891336 Mar 12 14:20 acpidbg -rwxr-xr-x 1 root root 399432 Mar 12 14:20 cpupower -rwxr-xr-x 1 root root 1759112 Mar 12 14:20 rtla -rwxr-xr-x 1 root root 198744 Mar 12 14:20 turbostat -rwxr-xr-x 1 root root 251720 Mar 12 14:20 usbip -rwxr-xr-x 1 root root 247536 Mar 12 14:20 usbipd -rwxr-xr-x 1 root root 47816 Mar 12 14:20 x86_energy_perf_policy ** Affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2103653 Title: python perf module missing in plucky's kernel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2103653/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs