I have seen other Linux commands other than PMC causes jumps as well. -----Original Message----- From: Zuckerbrod, Daniel Sent: Wednesday, February 10, 2021 9:37 PM To: Richard Cochran <richardcoch...@gmail.com> Cc: linuxptp-users@lists.sourceforge.net Subject: RE: [Linuxptp-users] PTP4L Offset Jumps When Querying PMC
It is based on the Intel sample project: https://rocketboards.org/foswiki/Projects/Stratix10SoCDesignExampleFor10GbeWithIEEE1588PTPCapability -----Original Message----- From: Richard Cochran <richardcoch...@gmail.com> Sent: Wednesday, February 10, 2021 9:36 PM To: Zuckerbrod, Daniel <dzuckerb...@textronsystems.com> Cc: linuxptp-users@lists.sourceforge.net Subject: Re: [Linuxptp-users] PTP4L Offset Jumps When Querying PMC On Wed, Feb 10, 2021 at 10:07:08PM +0000, Zuckerbrod, Daniel wrote: > I am working with a point to point master/slave configuration where > the master is a regular Linux PC and the slave is an SoC FPGA running > an ARM with embedded Linux. I am seeing that once ptp4l runs for a > little bit I get little to no variation in my offsets. However if I > execute certain commands in Linux, specifically queries to PMC my > offset jumps. It will usually return back to normal after a little bit > but was wondering what is causing the jump (log file attached). Weird. That is really, truly broken. > Based on the location of the jump I would venture to say it is not an > issue in the FPGA hardware but rather something within the ARM/OS. Do > you know what could be causing the jumps? You didn't mention the FPGA/IP core you are using. I'm willing to bet the bug is in there. [ No need to embarrass anyone. So many buggy IP Cores in this world. It could make someone cry. But not me, I'm used to it by now :( ] Thanks, Richard _______________________________________________ Linuxptp-users mailing list Linuxptp-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-users
