Public bug reported:
ptp4l is no longer able to sync the PHC of a i350 (igb driver) since
4.15.0-33-generic.
4.15.0-32-generic work.
It no longer reach the slave state and is stuck to UNCALIBRATED:
Aug 31 10:03:29 ptp4l[1259]: [79.208] [0:enp7s0f1] port 1: link up
Aug 31 10:03:29 ptp4l[1259]: [79.260] [0:enp7s0f1] port 1: FAULTY to LISTENING
on INIT_COMPLETE
Aug 31 10:03:30 ptp4l[1259]: [80.814] [0:enp7s0f1] port 1: new foreign master
ec4670.fffe.009fc5-1
Aug 31 10:03:34 ptp4l[1259]: [84.815] [0:enp7s0f1] selected best master clock
ec4670.fffe.009fc5
Aug 31 10:03:34 ptp4l[1259]: [84.815] [0:enp7s0f1] port 1: LISTENING to
UNCALIBRATED on RS_SLAVE
OR
Aug 31 10:53:44 ptp4l[1259]: [3094.219] [0:enp7s0f1] timed out while polling
for tx timestamp
Aug 31 10:53:44 ptp4l[1259]: [3094.219] [0:enp7s0f1] increasing
tx_timestamp_timeout may correct this issue, but it is likely caused by a
driver bug
Aug 31 10:53:44 ptp4l[1259]: [3094.219] [0:enp7s0f1] port 1: send delay request
failed
Aug 31 10:53:44 ptp4l[1259]: [3094.219] [0:enp7s0f1] port 1: UNCALIBRATED to
FAULTY on FAULT_DETECTED (FT_UNSPECIFIED)
Aug 31 10:54:00 ptp4l[1259]: [3110.292] [0:enp7s0f1] port 1: FAULTY to
LISTENING on INIT_COMPLETE
Aug 31 10:54:02 ptp4l[1259]: [3112.052] [0:enp7s0f1] port 1: new foreign master
ec4670.fffe.009fc5-1
Aug 31 10:54:06 ptp4l[1259]: [3116.053] [0:enp7s0f1] selected best master clock
ec4670.fffe.009fc5
Aug 31 10:54:06 ptp4l[1259]: [3116.053] [0:enp7s0f1] port 1: LISTENING to
UNCALIBRATED on RS_SLAVE
On 4.15.0-32-generic:
Aug 31 09:52:27 ptp4l[2392]: [654.860] [0:enp7s0f1] port 1: new foreign master
ec4670.fffe.009fc5-1
Aug 31 09:52:31 ptp4l[2392]: [658.861] [0:enp7s0f1] selected best master clock
ec4670.fffe.009fc5
Aug 31 09:52:31 ptp4l[2392]: [658.861] [0:enp7s0f1] port 1: LISTENING to
UNCALIBRATED on RS_SLAVE
Aug 31 09:52:33 ptp4l[2392]: [660.737] [0:enp7s0f1] port 1: minimum delay
request interval 2^1
Aug 31 09:52:34 ptp4l[2392]: [662.037] [0:enp7s0f1] port 1: UNCALIBRATED to
SLAVE on MASTER_CLOCK_SELECTED
I don't know if it is a driver change or a network/timekeeping change or
other that is the root cause of this.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1790096
Title:
PTP no longuer working on igb since 4.15.0-33
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