an Intel i7 NUC running Ubutnu 18.04 with kernel 5.4.0-generic

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> On May 18, 2023, at 10:20 AM, Jacob Keller <jacob.e.kel...@intel.com> wrote:
> 
> 
> 
>> On 5/18/2023 9:14 AM, Bernie Elayda wrote:
>> Hello, I have an update.  I obtained the HEAD for linuxptp yesterday and
>> re-ran my setup. Unfortunately, phc2sys failed again with a Connection
>> timed out:
>> 
>> phc2sys[470789.265]: CLOCK_REALTIME phc offset       -63 s2 freq   -9645
>> delay      0
>> phc2sys[470790.265]: CLOCK_REALTIME phc offset      -797 s2 freq  -10398
>> delay      0
>> phc2sys[470791.266]: CLOCK_REALTIME phc offset       524 s2 freq   -9316
>> delay      0
>> phc2sys[470792.266]: CLOCK_REALTIME phc offset       598 s2 freq   -9085
>> delay      0
>> phc2sys[470793.266]: CLOCK_REALTIME phc offset      -247 s2 freq   -9750
>> delay      0
>> phc2sys[470794.267]: CLOCK_REALTIME phc offset       -22 s2 freq   -9599
>> delay      0
>> phc2sys[470795.267]: ioctl PTP_SYS_OFFSET_PRECISE: Connection timed out
>> 
>> Is there something I can do to troubleshoot this?  Our application needs to
>> run for days.  My solution is to modify the phc2sys's sysoff_precise to
>> just use the last pctns and ts result when an ioctl error happens.
>> when this connection timed out happen, ptp4l is still running.
>> 
>> regards,bernardo
> 
> What hardware are you using? I suspect the PHC driver must be returning
> some error here which is what ultimately causes sys_offset_precise to fail.
> 
> 
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