*** This bug is a duplicate of bug 1913763 ***
https://bugs.launchpad.net/bugs/1913763
** This bug has been marked a duplicate of bug 1913763
hyperv: unable to distinguish PTP devices
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https://bugs.launchpad.net/bugs/1917458
Title:
ptp0 device under hyperv may not be correct
Status in systemd package in Ubuntu:
In Progress
Status in systemd source package in Bionic:
In Progress
Status in systemd source package in Focal:
In Progress
Status in systemd source package in Groovy:
In Progress
Status in systemd source package in Hirsute:
In Progress
Bug description:
[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
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