Public bug reported:
[impact]
the /dev/ptp0 device for a hyperv instance may not be the correct,
hyperv-provided, ptp device.
[test case]
on some hyperv instance types, particularly those that might contain
passthrough network card(s) that also provide ptp, the first ptp device
may not be the correct one to use for ptp, e.g. there may be multiple
ones:
$ ls /dev/ptp*
/dev/ptp0 /dev/ptp1
$ cat /sys/class/ptp/ptp0/clock_name
hyperv
$ cat /sys/class/ptp/ptp1/clock_name
mlx5_p2p
the order can change across boots, so a consistent way of addressing the
hyperv-provided one is needed
[regression potential]
any regression would involve failure to properly create the ptp symlink,
or other failure while udev is processing newly detected ptp device(s)
[scope]
this is needed in all releases
this was fixed upstream with the commit
32e868f058da8b90add00b2958c516241c532b70 which is not yet included in
any release
** Affects: systemd (Ubuntu)
Importance: Low
Assignee: Dan Streetman (ddstreet)
Status: In Progress
** Affects: systemd (Ubuntu Bionic)
Importance: Low
Assignee: Dan Streetman (ddstreet)
Status: In Progress
** Affects: systemd (Ubuntu Focal)
Importance: Low
Assignee: Dan Streetman (ddstreet)
Status: In Progress
** Affects: systemd (Ubuntu Groovy)
Importance: Low
Assignee: Dan Streetman (ddstreet)
Status: In Progress
** Affects: systemd (Ubuntu Hirsute)
Importance: Low
Assignee: Dan Streetman (ddstreet)
Status: In Progress
** Also affects: systemd (Ubuntu Bionic)
Importance: Undecided
Status: New
** Also affects: systemd (Ubuntu Hirsute)
Importance: Undecided
Status: New
** Also affects: systemd (Ubuntu Groovy)
Importance: Undecided
Status: New
** Also affects: systemd (Ubuntu Focal)
Importance: Undecided
Status: New
** Changed in: systemd (Ubuntu Hirsute)
Assignee: (unassigned) => Dan Streetman (ddstreet)
** Changed in: systemd (Ubuntu Groovy)
Assignee: (unassigned) => Dan Streetman (ddstreet)
** Changed in: systemd (Ubuntu Focal)
Assignee: (unassigned) => Dan Streetman (ddstreet)
** Changed in: systemd (Ubuntu Bionic)
Assignee: (unassigned) => Dan Streetman (ddstreet)
** Changed in: systemd (Ubuntu Hirsute)
Importance: Undecided => Low
** Changed in: systemd (Ubuntu Groovy)
Importance: Undecided => Low
** Changed in: systemd (Ubuntu Focal)
Importance: Undecided => Low
** Changed in: systemd (Ubuntu Bionic)
Importance: Undecided => Low
** Changed in: systemd (Ubuntu Hirsute)
Status: New => In Progress
** Changed in: systemd (Ubuntu Groovy)
Status: New => In Progress
** Changed in: systemd (Ubuntu Focal)
Status: New => In Progress
** Changed in: systemd (Ubuntu Bionic)
Status: New => In Progress
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https://bugs.launchpad.net/bugs/1917458
Title:
ptp0 device under hyperv may not be correct
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