Hi,

+e1000-devel

On Tue, 2015-05-05 at 13:58 +0000, Cognault Marc wrote:
> Hello
> 
> We try to implement Linuxptp on the following platform:
> Intel Core i7 4700EQ
> Ethernet controller: Intel I218-LM
> Debian 8  - kernel 3.16.7
> Driver: e1000e 3.1.0.2
> 
> Despite we use the last e1000e release, the synchronization fails from time 
> to time in a way similar to the issue 
> https://www.mail-archive.com/linuxptp-users%40lists.sourceforge.net/msg00089.html
> 
> Ptp4l log output:
> ptp4l[282013.033]: rms 4967 max 13253 freq    +25 +/- 6813 delay 24447 +/- 
> 2423
> ptp4l[282014.034]: rms 5018 max 13444 freq   -433 +/- 6870 delay 24234 +/- 
> 2564
> ptp4l[282015.035]: rms 5649 max 14758 freq   -492 +/- 7760 delay 23901 +/- 
> 2745
> ptp4l[282016.036]: rms 4768 max 12375 freq    -46 +/- 6558 delay 23501 +/- 
> 3154
> ptp4l[282017.036]: rms 4923 max 12944 freq   -236 +/- 6765 delay 24439 +/- 
> 2169
> ptp4l[282018.038]: rms 9913 max 26066 freq  -1041 +/- 13614 delay 21056 +/- 
> 6639
> ptp4l[282018.163]: clockcheck: clock jumped forward or running faster than 
> expected!
> ptp4l[282018.163]: port 1: SLAVE to UNCALIBRATED on SYNCHRONIZATION_FAULT
> ptp4l[282018.413]: port 1: UNCALIBRATED to SLAVE on MASTER_CLOCK_SELECTED
> ptp4l[282019.039]: rms 35184372090195 max 70368744180407 freq  -2994 +/- 7974 
> delay 24286 +/- 2607
> ptp4l[282020.040]: rms 6215 max 11297 freq  -3239 +/- 8480 delay 23951 +/- 
> 2655
> ptp4l[282021.040]: rms 5511 max 11347 freq  +1238 +/- 7033 delay 24534 +/- 
> 2700
> ptp4l[282022.041]: rms 4514 max 10977 freq   +634 +/- 6153 delay 25364 +/- 247
> 
> This issue happens when both ptp4l and phc2sys are running, and doesn't 
> happen if phc2sys is not started.
> 
> As this issue should have been solved with the e1000e rev 3.0.4, does 
> somebody know where is the problem (linuxptp, e1000e , I218, ...) ?
> 
> Regards
> 
> Marc Cognault

I have fowarded this to e1000-devel in order for the proper maintainer
of e1000e sees your message. Hopefully they can shed some proper light
on this.

Regards,
Jake
------------------------------------------------------------------------------
One dashboard for servers and applications across Physical-Virtual-Cloud 
Widest out-of-the-box monitoring support with 50+ applications
Performance metrics, stats and reports that give you Actionable Insights
Deep dive visibility with transaction tracing using APM Insight.
http://ad.doubleclick.net/ddm/clk/290420510;117567292;y
_______________________________________________
E1000-devel mailing list
E1000-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/e1000-devel
To learn more about Intel® Ethernet, visit 
http://communities.intel.com/community/wired

Reply via email to