Re: [Linuxptp-users] "poll tx timestamp timeout", problem since v1.2, igb, stmmac

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

On Fri, Oct 25, 2013 at 05:47:26PM +0200, Jean-Baptiste Maillet wrote:
> On 10/25/2013 05:09 PM, Richard Cochran wrote:
> > On Fri, Oct 25, 2013 at 04:10:36PM +0200, Jean-Baptiste Maillet wrote:
> >>
> >> On the kernel side, for driver/ptp/ I'm on 0d8c3e7 "ptp_pch: fix error handling in pch_probe()" for stmmac,
> >> Debian 3.10.7-1 for i210.
> >
> > So 0d8c3e7 means a pure mainstream kernel (v3.10-rc5~25^2~36)?
> 
> Nope, the sha is just the reference to where I am regarding ptp compared to upstream.
> This is a SoC with specific BSP and platform drivers.
>   
> > And Debian kernel is from testing or unstable?
> 
> Testing (but at least pure Debian upstream).

Okay, so I just tried linux-image-3.10-0.bpo.2-686-pae from
wheezy-backports, and it is definitely broken WRT igb. Even commands
like "ifdown" and "ifconfig" stall forever.  In contrast, a plain old
3.10.17 kernel works just fine with i210, igb and ptp4l.

So, based on this thread, other recent threads, and my own past
experience, I can only recommend to avoid vendor kernels like the
plague.

Thanks,
Richard