Re: [Linuxptp-users] clockcheck - need to filter large spurious phase jumps?

[Richard C. <ric...@gm...>]

A couple of things to try, below...

On Tue, Nov 05, 2013 at 04:26:21PM -0500, Rich Schmidt wrote:

> Intel 82547L  NICs   driver: e1000e version: 2.5.4-NAPI firmware-version: 1.9-0
> Debian with kernel 3.12.0-rc

1. This driver also supports software time stamping. So please try
   'ptp4l -S' and no phc2sys. (In this case, ptp4l will adjust the
   Linux system clock.) If that works without the jumps, then the
   issue is most likely a driver or kernel issue.

2. You gave the e1000e version as 2.5.4, but in the kernel source
   drivers/net/ethernet/intel/e1000e/netdev.c I see version 2.3.2, so
   you must using the SF drivers. You might also try the driver from
   the kernel.

3. Are you using your own kernel.org kernel build from source? If so,
   that is good, but you should know that v3.12 has been released, and
   it is better to drop the -rc kernel.

Thanks,
Richard