as this is needed only for the debian experimental branch (with
v247-rc2), marking this as invalid for ubuntu.
** Description changed:
[impact]
when upgrading, all serial devices are changed to 'dead' and thus all
serial consoles are stopped
[test case]
on a system configured with a serial console, upgrade from focal to the
latest systemd package from upstream, and check the serial console. the
state of the serial port and/or serial console can also be checked with
systemctl status, e.g.:
$ systemctl status dev-ttyS0.device
[regression potential]
and regression would likely involve incorrectly detected or operational
devices after a systemd version upgrade, or after a systemd pid1 reexec
or reload.
[scope]
- TBD
+ both upstream commits (ids below) are first included upstream in
+ v247-rc1
+
+ [other info]
+
+ Upstream commit e77b146f825ef1bb63c297cc713962b94422d2c6 slightly
+ altered the meaning of the 'G' sd-device db tag, to 'any' tag, and added
+ a new 'Q' tag, meaning 'current' tag. When upgrading from udev before
+ that commit to after the commit, the existing udev db is not updated, so
+ the 'Q' tag is not present in the /run/udev/data/ db file for any
+ previously-existing devices.
+
+ However, upstream commit 242c1c075aa284c8a8657c5aca36147f528146ba then
+ changes the 'device_is_ready()' check in src/core/device.c to also check
+ for the 'current' tag of 'systemd'. That tag will not be present for any
+ devices in the system since udev just now was changed to know about the
+ 'Q' type 'current' tags, and has not updated its /run/udev/data db
+ files.
+
+ This leads to the systemd daemon-reexec ignoring all devices tagged with
+ 'systemd', but only the older 'G' tag and not the new 'Q' tag, and
+ marking them all as 'dead'.
** Changed in: systemd (Ubuntu)
Status: New => Invalid
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1905594
Title:
upgrade disables all serial devices and consoles
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1905594/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
