Re: slow clock on DELL Latitude 5501

[SAITOH Masanobu <msaitoh%execsw.org@localhost>]

Hi, all.

On 2020/02/13 20:10, is%netbsd.org@localhost wrote:
> On Tue, Feb 11, 2020 at 05:34:58PM +0100, Frank Kardel wrote:
>> clockinterrupt be 4 times too slow explains the high TSC frequency(*4) and
>> ACPI-Fast and hpet0 seem the have the same frequency scaling as
>> clockinterrupt.
>>
>> So it loock like the clockinterrupt setup is botched.
> 
> Possibly related:
> 
> * after a reboot, our (efi)boot doesn't count down.
> * after a single powerdown in this condition, boot counts down,
>   netbsd kernel boots, but hangs after the internal ubt (last
>   device) has attached.
> * needs a 2nd powerdown in this condition to boot again.
> 
> (after shutdown -p and powerup , boots ok)
> 
> 	-is
> 

Please test the following (work-in-progrss) diff:

	http://www.netbsd.org/~msaitoh/tsc-20200416-2.dif

I bought a new Intel NUC(BXNUC10I3FNK (Comet Lake U)) and it had the same problem.

-- 
-----------------------------------------------
                SAITOH Masanobu (msaitoh%execsw.org@localhost
                                 msaitoh%netbsd.org@localhost)