** Changed in: snapd
Status: Confirmed => Fix Released
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1779872
Title:
snapd.seeded.service taking over 2 minutes to initialise (kernel crng
regression?)
Status in snapd:
Fix Released
Status in linux package in Ubuntu:
Fix Released
Bug description:
Following a regular dist-upgrade on Ubuntu 18.04 this morning, reboot
and further reboots were hanging for minutes rather than seconds on
the Ubuntu splash screen before getting to login.
Initial system analysis:
$ sudo systemd-analyze blame
3min 53.073s plymouth-quit-wait.service
2min 20.699s snapd.seeded.service
49.949s snapd.service
6.186s NetworkManager-wait-online.service
1.148s dev-sda2.device
1.098s plymouth-start.service
Drill down on snapd.seeded.service
$ journalctl -u snapd.seeded.service --since today
-- Logs begin at Fri 2018-04-27 13:01:30 BST, end at Tue 2018-07-03 12:42:14
BST. --
(BEFORE UPGRADE)
Jul 03 04:15:43 user-laptop systemd[1]: Starting Wait until snapd is fully
seeded...
Jul 03 04:15:43 user-laptop systemd[1]: Started Wait until snapd is fully
seeded.
Jul 03 04:21:03 user-laptop systemd[1]: Stopped Wait until snapd is fully
seeded.
(/BEFORE UPGRADE)
-- Reboot --
(AFTER UPGRADE)
Jul 03 04:22:47 user-laptop systemd[1]: Starting Wait until snapd is fully
seeded...
Jul 03 04:24:49 user-laptop systemd[1]: Started Wait until snapd is fully
seeded.
Jul 03 04:26:23 user-laptop systemd[1]: Stopped Wait until snapd is fully
seeded.
-- Reboot --
Jul 03 04:28:17 user-laptop systemd[1]: Starting Wait until snapd is fully
seeded...
Jul 03 04:30:44 user-laptop systemd[1]: Started Wait until snapd is fully
seeded.
Jul 03 10:23:14 user-laptop systemd[1]: Stopped Wait until snapd is fully
seeded.
-- Reboot --
Jul 03 10:29:30 user-laptop systemd[1]: Starting Wait until snapd is fully
seeded...
Jul 03 10:31:50 user-laptop systemd[1]: Started Wait until snapd is fully
seeded.
(/AFTER UPGRADE)
I reported this issue on AskUbuntu, and it was suggested to me to
report a possible snapd bug due to the extended seeding time compared
to before the upgrade.
The dist-upgrade installed/upgraded:
Install: linux-headers-4.15.0-24:amd64 (4.15.0-24.26, automatic),
linux-headers-4.15.0-24-generic:amd64 (4.15.0-24.26, automatic),
linux-modules-extra-4.15.0-24-generic:amd64 (4.15.0-24.26, automatic),
linux-modules-4.15.0-24-generic:amd64 (4.15.0-24.26, automatic),
linux-image-4.15.0-24-generic:amd64 (4.15.0-24.26, automatic)
Upgrade: gnome-control-center-data:amd64 (1:3.28.1-0ubuntu1.18.04.1,
1:3.28.1-0ubuntu1.18.04.2), linux-headers-generic:amd64 (4.15.0.23.25,
4.15.0.24.26), gnome-control-center:amd64 (1:3.28.1-0ubuntu1.18.04.1,
1:3.28.1-0ubuntu1.18.04.2), linux-image-generic:amd64 (4.15.0.23.25,
4.15.0.24.26), linux-signed-generic:amd64 (4.15.0.23.25, 4.15.0.24.26),
gnome-control-center-faces:amd64 (1:3.28.1-0ubuntu1.18.04.1,
1:3.28.1-0ubuntu1.18.04.2), linux-generic:amd64 (4.15.0.23.25, 4.15.0.24.26)
UPDATE (2018-07-05)
This morning's Boot:
$ sudo systemd-analyze blame
14.161s apt-daily.service
6.177s NetworkManager-wait-online.service
3.452s plymouth-quit-wait.service
1.252s dev-sda2.device
1.091s plymouth-start.service
.
.
.
24ms snapd.seeded.service
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