ptpd on 2.6.30.4

[John W. Linville]

On Wed, Aug 12, 2009 at 03:25:05PM -0400, Christopher Johnston wrote:
> Good to see there is a maintainer for ptpd now and a future for improvements
> and features.  At my company we have a large ptpd installment on our systems
> for very precise timing in our production server (no ntp clients).  The new
> Intel 82576 add-in for hardware timestamping looks promising but
> unfortunately I can't seem to keep the time stable using the "linux_hw"
> option, time goes backwards/forwards very aggresively.  So a little
> clarification around whether I am using it correctly would be good.  Using
> the default mode works fine as this is what I am using on 100s of servers
> without a problem.
> CPPFLAGS="-DPTPD_DBGV -DHAVE_LINUX_NET_TSTAMP_H
> -I/root/linux-2.6.30.4/include"
> 
> Here are the flags I am using at compilation time.
> 
> Let me know if you need anything else.

Chris,

Sorry for the delayed response -- I wanted to give more people a chance
to subscribe to the list, and I took a little trip this weekend... :-)

FWIW, I'm fairly new to the code here.  Besides, I don't think I have
any of that fancy Intel hardware.

Patrick Ohly from Intel is on the list now.  He implemented the HW
timestamp code.  Perhaps he can comment?

Thanks,

John
-- 
John W. Linville		Someday the world will need a hero, and you
linville at tuxdriver.com			might be all we have.  Be ready.