[LinuxPPS] hardpps: PPSJITTER: jitter=80945, limit=67744

[Alexander Gordeev]

Hey Udo,

Sorry for the delay. :(

В Sat, 11 Dec 2010 18:22:58 +0100
Udo van den Heuvel <udovdh at xs4all.nl> пишет:

> Hello,
> 
> I see messages like
> 
> hardpps: PPSJITTER: jitter=80945, limit=67744
> 
> every few minutes in my messages file. How come? How to fix?

I suspect that you have CONFIG_NO_HZ enabled.

> Do I need RT kernel?

Should not be necessary.

Can you please try the latest patchset:
https://github.com/downloads/ago/linux-2.6/patch-2.6.37-rc6-ts22.bz2

Kconfig magic in it ensures that users never select both CONFIG_NO_HZ
and CONFIG_NTP_PPS at the same time. Please note that CONFIG_NTP_PPS is
not selected automatically now so you may have to select it manually.

-- 
  Alexander
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 490 bytes
Desc: not available
Url : http://ml.enneenne.com/pipermail/linuxpps/attachments/20101224/5af7740c/attachment.pgp