Timecounter "TSC" frequency 451024462

[Roberto Nunnari]

Hello Dag,

thanks for your answer.

Dag-Erling Smorgrav wrote:
> [moved from -stable to -current]
> 
> Roberto Nunnari <nunnari at die.supsi.ch> writes:
> 
>>I just upgraded my server from 4.7-Stable to 5.0-Release by a full
>>install.
> 
> 
> You shouldn't have.  At the very least, you should have waited for 5.1
> (which is only a week away now).
> 

no problem.. I'll cvsup and make world as soon as 5.1 is released.
It's not a production server, so that's not a problem.

What is interesting is that with 4.7-Stable the faulty timer was
handled correctly (or correctly ignored).. so I'd suggest to fix
in software the hardware bug in 5.1-Release, or at least in -current.


> 
>>Now I hit a problem with the date.. the time goes much faster
>>than normal.. maybe twice as normal...
> 
> 
> You have a broken ACPI timer (Asus motherboard with Aladdin chipset?).


Yes! You're right!


> The simplest solution is to disable the ACPI timer in loader.conf:
> 
> debug.acpi.disable="timer"
> 
> Alternatively, you can leave the ACPI timer in but use the
> kern.timecounter.hardware sysctl to select the TSC or i8254 timer
> instead (the TSC has less overhead but doesn't always work on SMP
> systems)
> 
> DES

I already had fixed it with sysctl, but I'll give a try to the
loader.conf solution as well.


Best regards.
-- 
               Roberto Nunnari -software engineer-
                 mailto:nunnari at die.supsi.ch
  Scuola Universitaria Professionale della Svizzera Italiana
            Dipartimento di Informatica e Elettronica
                   http://www.die.supsi.ch
  SUPSI-DIE
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