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Re: Seagate Dockstar, current and clock
On Thu, Jun 09, 2011 at 02:13:45PM +0200, Stefano Marinelli wrote:
> Hello everybody,
> yesterday I got a Seagate Dockstar. I compiled a evbarm system from -current,
> adapted the SHEEVAPLUG kernel according to some information I got from this
> mailing list, installed and everything is working properly.
> What I've seen is that even if I let ntpd daemon running, if there's a huge
> I/O (like now, compiling some pkgsrc packages and the system is swapping on
> the disk), the clock starts to lose time. It lost many seconds in 5 minutes.
> More, here's the output of "ntpq -p":
> remote refid st t when poll reach delay offset jitter
> tucano.isti.cnr 18.104.22.168 2 u 11 64 377 24.536 4526.44 3506.33
> gamma.rueckgr.a 22.214.171.124 3 u 4 64 377 43.405 2328.81 4766.73
> sd-21102.dedibo 126.96.36.199 6 u 58 64 377 55.609 4616.32 2987.79
> hermes.develer. 188.8.131.52 2 u 50 64 377 26.046 4989.88 3070.85
> The jitter gets very high and, more, I can't see the "*" and the "+" near the
> server names, so I think it's not getting in sync anymore.
> Any idea?
The timecounter implementation for marvell is faulty.
I should really commit my changes.
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