> -----Original Message----- > From: [email protected] [mailto:[email protected]] > Sent: Friday, August 10, 2018 10:45 AM > To: Keller, Jacob E <[email protected]> > Cc: Richard Cochran <[email protected]>; Cliff Spradlin via Linuxptp- > users <[email protected]>; Chris Caudle > <[email protected]>; Cliff Spradlin <[email protected]> > Subject: Re: [Linuxptp-users] Fixing offset jump at reset? > > Hi Richard and Jacob, > > The most interesting is that on RHEL7 the 36 second offset occurs after the > tx_timestamp_timeout error and after that the offset only drifts further away. > (After staying ‘synchronised’ in the 36xxxxxxxxx range for a little of time) > > I had tried the exact same thing between two HP Z440 PC’s (including the exact > same Ethernet adapter + driver) running Ubuntu (instead of RHEL7). The > tx_timestamp_timeout erorr occurred also on this slave server when pushing an > .iso of +-5GB over the Ethernet line, except it didn’t got an offset of 36 > seconds, > and it even re-synchronised after a while, while the RHEL7 slave only drifts > further away when pushing a lot of network traffic from that PTP slave server > over the network. > > Jord
Yep, this is indicative of a driver issue, possibly a bug in some RHEL backport. Thanks, Jake ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Linuxptp-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linuxptp-users
