Re: [Linuxptp-users] "poll tx timestamp timeout", igb on i210, vanilla kernel

[Vick, M. <mat...@in...>]

On 10/28/13, 9:53 AM, "Jean-Baptiste Maillet"
<jea...@pa...> wrote:

>On 10/28/2013 05:41 PM, Jean-Baptiste Maillet wrote:
>> On 10/25/2013 06:12 PM, Vick, Matthew wrote:
>> ...
>>> I210 should definitely be working in the upstream Linux kernel. Please
>>>let
>>> me know if it is not.
>>
>> I think there is a problem.
>> ptp4l "poll tx timestamp timeout" 100%
>> igb driver on i210 "Detected Tx Unit Hang" 100%
>>
>> Tested here with a freshly built 3.10.2 fetched from kernel.org.
>...
>>
>>> I'm uncertain what the Debian kernel version of igb looks like. It's
>>> possible some critical patch is missing. You can try the latest version
>>> (5.0.6) from e1000.sf.net and compiling with CFLAGS_EXTRA=-DIGB_PTP to
>>>see
>>> if that driver works for you.
>>
>> Will do.
>
>Done.
>Good news: same results.
>Should this go to e1000-devel instead?

That's really strange. It looks like the device's transmit unit is hanging
on the first few packets you attempt to send, which is why ptp4l is
failing.

Yes, please do send along all of your information to e1000-devel and we'll
have some more Intel folks look at it. A few other bits that would be
helpful are the lspci -vvv output before and after the error occurs as
well as whether this failure occurs with any other traffic (i.e. ping).
Thank you!

Cheers,
Matthew