just update the cause, its really a driver issue, a overflow error occurs
in calculating the frequency adjustment.
thanks for the information.
Richard Cochran <richardcoch...@gmail.com> 于 2018年8月2日周四 23:49写道：
> On Thu, Aug 02, 2018 at 12:55:44PM +0800, l...@codeaurora.org wrote:
> > I will check the driver carefully, would you please also tell me how the
> > abnormal frequency(204799934) calculated in Linuxptp as below log?
> > I print this debug info in the kernel function scaled_ppm_to_ppb(), many
> > thanks.
>
> That log is completely mangled and illegible. This is not the place
> to discuss your driver issues. If you want to know how ptp4l computes
> the frequency, read the source code.
>
> Hint: garbage in, garbage out.
>
>
> Thanks,
> Richard
>
>
> > ptp4l[188.933]: clock_synchronize master offset -8 s2 freq
> -7
> > path delay 3752
> > ptp4l[189.763]: bc_event received a message:9
> >
> > ptp4l[189.932]: bc_event received a message:0
> >
> > ptp4l[189.933]: port_syfufsm p-[ 189.935781] ********tx->freq: -60,
> ppb: -1
> > [ 189.941048] **********kernel adjfreq get ppb: -1
> > > syfu: 0 event :0
> >
> > ptp4l[189.933]: bc_event received a message:8
> >
> > ptp4l[189.933]: port_syfufsm p->syfu: 1 event :3
> >
> > ptp4l[189.933]: port_synchronize t1 158731084875t2 158731088629c1
> > 0c2 0t1c 158731084875
> > ptp4l[189.933]: tsproc_update_offset tsp->mode:0
> >
> > ptp4l[189.933]: tsproc_update_offset t1 158731084875t2 158731088629delay
> > 3752
> > ptp4l[189.933]: clock_synchronize master offset 2 s2 freq
> +1
> > path delay 3752
> > ptp4l[189.943]: bc_event received a message:b
> >
> > ptp4l[190.483]: bc_event received a message:9
> >
> > ptp4l[190.932]: bc_event received a message:0
> >
> > ptp4l[190.933]: port_syfufsm p-[ 190.935800] ********tx->freq:
> 204799934,
> > ppb: 3124999
> > [ 190.941071] **********kernel adjfreq get ppb: 3124999
> > > syfu: 0 event :0
> >
> > ptp4l[190.933]: bc_event received a message:8
> >
> > ptp4l[190.933]: port_syfufsm p->syfu: 1 event :3
> >
> > ptp4l[190.933]: port_synchronize t1 159731113930t2 159533160040c1
> > 0c2 0t1c 159731113930
> > ptp4l[190.933]: tsproc_update_offset tsp->mode:0
> >
> > ptp4l[190.933]: tsproc_update_offset t1 159731113930t2 159533160040delay
> > 3752
> > ptp4l[190.933]: clock_synchronize master offset -197957642 s2 freq
> -3124999
> > path delay 3752
>
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