The patch for changing TCC offset can only be in for 5.4 kernel. Then there will be no MSR access. So the option is to take out of mainline kernel patch to avoid this or avoid workaround option. I don't know if there are any other options.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1840454 Title: kernel 5.2 disallows thermald's direct MSR writes Status in linux package in Ubuntu: Incomplete Status in thermald package in Ubuntu: New Bug description: thermald/kernel are spamming dmesg now because MSR write is disallowed. jak@jak-t480s:~:master$ journalctl -b --since=today | grep msr | wc -l 8688 jak@jak-t480s:~:master$ journalctl -b --since=today | grep msr | tail Aug 16 14:48:57 jak-t480s thermald[11327]: [WARN]sysfs write failed /dev/cpu/0/msr Aug 16 14:48:57 jak-t480s kernel: msr: Direct access to MSR 1a2 Aug 16 14:49:05 jak-t480s thermald[11327]: [WARN]sysfs write failed /dev/cpu/0/msr Aug 16 14:49:05 jak-t480s kernel: msr: Direct access to MSR 1a2 Aug 16 14:49:13 jak-t480s thermald[11327]: [WARN]sysfs write failed /dev/cpu/0/msr Aug 16 14:49:13 jak-t480s kernel: msr: Direct access to MSR 1a2 Aug 16 14:49:21 jak-t480s thermald[11327]: [WARN]sysfs write failed /dev/cpu/0/msr Aug 16 14:49:21 jak-t480s kernel: msr: Direct access to MSR 1a2 Aug 16 14:50:03 jak-t480s kernel: msr: Direct access to MSR 1a2 Aug 16 14:50:03 jak-t480s thermald[11327]: [WARN]sysfs write failed /dev/cpu/0/msr To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1840454/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
