Re: [Linuxptp-users] Master offsets don't converge

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

On Fri, Jan 15, 2016 at 04:19:23PM +0000, Daniel Le wrote:
> My ptp4l version 1.4 in software timestamping mode works fine with a
> Linux kernel 2.6.35, however when I switch to the kernel 3.18.12
> (and new Ethernet driver), I see the master offsets are huge and
> never converge. Any pointer to debug this is much appreciated.

1. Start with vanilla 1.4 and verfiy correct operation.
2. Add your first (next) minimal change.
3. Correct operation? If yes, goto step 2
4. You found the bug.

If you have lots of changes, then use git bisect.

HTH,
Richard