[LinuxPPS] The final step...

[Graeme Hilton]

From: giometti at enneenne.com [mailto:giometti at enneenne.com]:
On Thu, Sep 24, 2009 at 04:13:09PM +0100, Graeme Hilton wrote:
> Rodolfo Giometti wrote:
> 
> Regarding the serial port, which version of LinuxPPS are you referring
> to?
> 
> This is in a 2.6.31 kernel (from Fedora), with your series of 9 patches
> applied and all the PPS options enabled.
> 
> I have used modules pps_core and pps_ldisc.  "ldattach 18 /dev/ttyS0" and
> S2.
> 
> Do you need any more information?

Yes, you should enable PPS debugging messages and verify if the serial
IRQs are arriving.
-------

I've got PPS debug enabled in the kernel and I can see the interrupt count
going up in /proc/interrupts:

Plenty of PPS events logged in /var/log/messages:
Sep 24 16:56:24 dhcp-187-049 kernel: PPS event at 4457951
Sep 24 16:56:25 dhcp-187-049 kernel: PPS event at 4458951
Sep 24 16:56:26 dhcp-187-049 kernel: PPS event at 4459951
Sep 24 16:56:27 dhcp-187-049 kernel: PPS event at 4460951
Sep 24 16:56:28 dhcp-187-049 kernel: PPS event at 4461951

[user at dhcp-187-049 ~]$ cat /proc/interrupts | grep serial
   4:          1          0   IO-APIC-edge      serial
  17:       7309       7398   IO-APIC-fasteoi   serial
[user at dhcp-187-049 ~]$ cat /proc/interrupts | grep serial
   4:          1          0   IO-APIC-edge      serial
  17:       7310       7400   IO-APIC-fasteoi   serial
[user at dhcp-187-049 ~]$ cat /proc/interrupts | grep serial
   4:          1          0   IO-APIC-edge      serial
  17:       7315       7400   IO-APIC-fasteoi   serial

What can I do to track this down a bit further?

-- 
Graeme Hilton