Hi, Dave, On Thu, 2024-10-10 at 17:43 -0700, Dave Hansen wrote: > How about something like the completely untested attached patch? > > IMNHO, it improves on what was posted here because it draws a > parallel > with an AMD erratum and also avoids writes to APIC_TMICT that would > get > ignored anyway. Thanks a lot for the rewrite. The patch looks great to me. I will test it on our test boxes to make sure skipping the APIC_TMICT write in TSC deadline mode does not bring unexpected impact to the old machines. thanks, rui