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Hi,
I have a problem with RTC/HPET that has been present for a lot of time, and in many different kernels. My machine is a Lenovo ThinkCentre M58 with a Core 2 Duo E7300 CPU (not sure what the chipset I have though).
Most of the time (but not always!) after waking up from suspend my logs start to be flooded with the following line:
hpet1: lost 19 rtc interrupts
Flooding my logs is a minor annoyance, but a bigger problem is that this breaks the sound output (there are regular, well audible, short distortions).
I'm not sure whether this is a kernel problem or a hardware problem, so any hints would be very welcome. Also, maybe someone knows if there's any possibility to reset the HPET/RTC subsystem or maybe reset/reload the parts of kernel that are responsible for communicating with that subsystem.
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Try to disable hpet with hpet=disable via the kernel command line. It will fall back to a less nice (but not seemingly broken) clocksource if available. Consider opening a bug report https://bugzilla.kernel.org/
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Yup, hpet=disable solved this. Thanks for the advice. I'll try to open a bug with the kernel devs.
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