[Soekris] net5501 excessively fast (10x) hardware clock options?
rob.visser at home.nl
Fri Sep 28 20:47:16 UTC 2007
I also have a Soekris 5501 70. I put debian on it.
No problem so far, however the clock runs too fast: about 1 hour per day.
Has anyone a solution?
> Hello all-
> I've been reading the list archives to find it appears some people have
> reported an exessively fast hardware clock and system clock on the 5501.
> This includes mine. I've found I can use clock=pit on my fedora core 6
> install stock kernel to at least get the system clock to calm down.
> I've read about building in support for the scx200 high speed hardware
> counter to have the kernel use that instead of the TSC. I plan to
> use that to solve system clock issues permanently. Apparently it's
> when the TSC is in use (w/ the new tickless 2.6 kernel stuff) that
> the system clock side of it gets in trouble.
> But the hardware clock running too fast still persists. I've read
> others who have watched it from Comm BIOS with the "time" command
> to see it in action. I've used hwclock from linux to see it going
> too fast when compared w/ my system clock running with the PIT
> I've also read that it seems some people have this problem and
> others don't? I could be wrong, but is this true that some
> boards have the fast hardware clock problem and others don't?
> Is there something that can be done to correct this? That's the
> one thing I couldn't find in the archives, so I'm asking about it
> here. I really want to avoid having a clock that gets ahead when
> this box needs to get it's initial system clock setup from the
> hardware clock at boot. It will be annoying to have ntpdate or
> rdate push it backwards in time once the network is started etc.
> So -- is there a fix available even if it means modifying the
> hardware? I'd be happy to send the board back for re-work
> and would even consider paying for the shipping etc. as it's
> simply important to me to have this fixed. I'm also willing
> to have one of our techs replace a crystal or whatever if it
> means changing something physical.
> Otherwise -- so far it's looking good for my planned use as a
> firewall / router / no moving parts / lower power frontend
> to our couple of internet connections and wireless network.
> Any info would be greatly appreciated.
> Eric Malkowski
> Soekris-tech mailing list
> Soekris-tech at lists.soekris.com
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