[LinuxPPS] LinuxPPS + kernel 2.6.34 = ok

[Rodolfo Giometti]

On Mon, May 24, 2010 at 09:52:42AM +0200, Udo van den Heuvel wrote:
> On 2010-05-24 09:47, Udo van den Heuvel wrote:
> > # cat /sys/devices/virtual/pps/pps0/{assert,clear}
> > 1274686950.992846869#955
> > 1274686008.261192728#12
> > 
> > I.e.: clear edge get stuck when ntpd is started.
> 
> Same results after restart of ntpd using ppstest:
> # ./ppstest /dev/pps0
> trying PPS source "/dev/pps0"
> found PPS source "/dev/pps0"
[snip]
> source 0 - assert 1274687513.027494194, sequence: 12 - clear
> 1274687509.227200490, sequence: 8
> source 0 - assert 1274687514.027567807, sequence: 13 - clear
> 1274687509.227200490, sequence: 8
> 
> How can I fix this?

Check the serial driver are you using. You should verify if it's
communicate with PPS core during clear edges.

Ciao,

Rodolfo

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