[Soekris] net5501 excessively fast (10x) hardware clock options?

Joerg Schoppet joerg at schoppet.de
Sun Sep 30 09:53:29 UTC 2007


malk at sidehack.sat.gweep.net schrieb:
> I got in touch w/ Soren on this.
>
> Some boards have this problem, recent ones should not.
> Mine is of the variety that has the problem (obviously).
>
> There are two capacitors under crystal X3 on the board that
> need to be replaced with 22pf NP0 0603 case parts.
>
> They are right below the X3 crystal (look on the silkscreen
> and the X3 crystal is clearly labelled).  They are side-by-side.
>
> We happened to have some in stock and did the mod ourselves
> saving sending the board back.  This did the trick nicely --
> the "time" command in the bios shows the clock ticking properly
> and the system clock under linux ticks just fine whether using
> the TSC based clocksource or the PIT clocksource (at least
> with stock Fedora core 6 kernel 2.6.18.  I've found the latest
> errata kernel 2.6.22.7-57 declares the TSC unstable and falls
> back to the PIT timer, not sure why)
>
>   
Hi,

will there be an official statement about this "bug" from soekris? If
so, I can get in contact with my local distributor to get an exchange-board.

Joerg


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