Public bug reported:
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
** Affects: thermald (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1840454
Title:
kernel 5.2 disallows thermald's direct MSR writes
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