> -----Original Message----- > From: Thomas Behn [mailto:thomas.b...@meinberg.de] > Sent: Tuesday, December 04, 2018 12:46 AM > To: Keller, Jacob E <jacob.e.kel...@intel.com>; > linuxptp-devel@lists.sourceforge.net > Subject: Re: [Linuxptp-devel] PHC delay when calling clock_gettime
> > That seems like a bug in either the driver implementation, or in the > > hardware. > Might be. I am not using own hardware, though. I saw this behaviour on a > desktop PC running Linux Mint 19 (Kernel 4.15.0-38-generic) with onboard > Intel 82579V (rev 05) NIC as well as on a similar system running > openSUSE Leap 42.1 (Kernel 4.1.39-56-default) with the same NIC. Maybe > this is a problem with that specific ethernet controller? > > I just found out, that I am not seeing it on my HP notebook running > Ubuntu 18.10 (Kernel 4.18.0-12-generic) with Intel I219-V (rev 21) NIC. > All of the NICs are using the Intel e1000e driver. Ah. Ok. From the sound of the original statement it sounded like you were developing your own hardware. I suspect that there is a work around in the 82579V NIC that causes this, but I don't know offhand. I'll have to go dig a bit, the e1000e driver isn't one I worked on much myself. Thanks, Jake _______________________________________________ Linuxptp-devel mailing list Linuxptp-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-devel
