[ 4831.433454] INFO: NMI handler (perf_event_nmi_handler) took too long to run: 1.011 msecs [ 4831.436878] perf: interrupt took too long (8582 > 2500), lowering kernel.perf_event_max_sample_rate to 23000 [ 4831.696442] INFO: NMI handler (perf_event_nmi_handler) took too long to run: 1.335 msecs [ 4831.729720] clocksource: timekeeping watchdog on CPU17: hpet wd-wd read-back delay of 82971ns [ 4831.745843] clocksource: wd-tsc-wd read-back delay of 163917ns, clock-skew test skipped! [ 4832.727439] clocksource: timekeeping watchdog on CPU19: hpet wd-wd read-back delay of 81644ns [ 4832.739666] clocksource: wd-tsc-wd read-back delay of 163219ns, clock-skew test skipped!