[PlanetCCRMA] Please help with hpet1: lost 2 rtc interrupts

[S C Rigler]

On Thu, 22 Apr 2010 16:55:06 -0500, Geoff King <gsking1 at gmail.com> wrote:

> Hello,
>
> I'm a new user of Fedora 12 CCRMA and am quite impresssed - thanks for
> the great overlay.  I've come from a few years of Ubuntu and am trying
> to settle into a more dedicated audio workstation setup.  Anyway -
> this may be more of a general linux question, but do you know why I
> occasionally get these in the dmesg log:
>
> hpet1: lost 2 rtc interrupts
> hpet1: lost 4 rtc interrupts
> hpet1: lost 3 rtc interrupts
> hpet1: lost 3 rtc interrupts
> hpet1: lost 2 rtc interrupts
> hpet1: lost 3 rtc interrupts
> hpet1: lost 2 rtc interrupts
>
> For example, these were in the dmesg log after playing with Muse
> yesterday.  I think I have seen these before with Rosegarden and on
> Ubuntu also in the past.  I've set the rtc clock like this...
>
>  chmod 666 /dev/rtc0
>  echo 1024 >/sys/class/rtc/rtc0/max_user_freq
>
> Qjackctl/Jackd was running and everything else seemed smooth.   The
> system is 32bit Fedora 12 w CCRMA realtime kernel
> (2.6.31.12-1.rt20.1.fc12.ccrma.i686.rt).  Big hard drives and 2GB
> memory.  akmod to build the nvidia drivers. M2496 audio and a variety
> of other things...
>
> It has been suggested that this could be a motherboard issue not being
> able to provide accurate timing?  Any other ideas? Suggestions?
>
> Thanks, Geoff

What type of system do you have?

--Steve