ptp0 device under hyperv may not be correct
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| systemd (Ubuntu) |
Fix Released
|
Low
|
Dan Streetman | ||
| Bionic |
In Progress
|
Low
|
Dan Streetman | ||
| Focal |
In Progress
|
Low
|
Dan Streetman | ||
| Groovy |
In Progress
|
Low
|
Dan Streetman | ||
| Hirsute |
Fix Released
|
Low
|
Dan Streetman | ||
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/
hyperv
$ cat /sys/class/
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 32e868f058da8b9
| Changed in systemd (Ubuntu Hirsute): | |
| assignee: | nobody → Dan Streetman (ddstreet) |
| Changed in systemd (Ubuntu Groovy): | |
| assignee: | nobody → Dan Streetman (ddstreet) |
| Changed in systemd (Ubuntu Focal): | |
| assignee: | nobody → Dan Streetman (ddstreet) |
| Changed in systemd (Ubuntu Bionic): | |
| assignee: | nobody → 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 |
| Launchpad Janitor (janitor) wrote | #1 |
| Changed in systemd (Ubuntu Hirsute): | |
| status: | In Progress → Fix Released |
This bug was fixed in the package systemd - 247.3-1ubuntu4
---------------
systemd (247.3-1ubuntu4) hirsute; urgency=medium
[ Dimitri John Ledkov ]
* d/p/debian/
Patch updated to reduce log level to debug
https:/
[ Dan Streetman ]
* d/p/lp1906331-
Take event reference while processing (LP: #1906331)
https:/
* d/p/lp1917458-
Create symlink for hyperv-provided ptp device (LP: #1917458)
https:/
[ Balint Reczey ]
* Pick proposed patch for not returning early in udevadm (LP: #1914062)
File: debian/
https:/
* debian/
As promised in LP: 1915126, until further investigation.
File: debian/
https:/
-- Balint Reczey <email address hidden> Thu, 04 Mar 2021 12:19:05 +0100