Public bug reported:
When launching an lxd container on non-amd64 architectures,
snapd.seeded.service hangs during "boot" time and never finishes, which
ends up impacting other systemd units.
This bug was found while investigating what I thought was a cloud-init
problem, because after launching a container I'd see:
# cloud-init status
status: running
and the status would never transition to "done". James Falcon (cloud-
init dev) helped with the investigation and found that snapd was
actually the culprit here. One can check it by doing:
# systemd-analyze blame
Bootup is not yet finished
(org.freedesktop.systemd1.Manager.FinishTimestampMonotonic=0).
Please try again later.
Hint: Use 'systemctl list-jobs' to see active jobs
# systemctl list-jobs
JOB UNIT TYPE STATE
102 cloud-init.target start waiting
110 cloud-final.service start waiting
2 multi-user.target start waiting
131 snapd.autoimport.service start waiting
103 cloud-config.service start waiting
1 graphical.target start waiting
111 snapd.seeded.service start running
141 systemd-update-utmp-runlevel.service start waiting
8 jobs listed.
# systemctl status snapd.seeded.service
● snapd.seeded.service - Wait until snapd is fully seeded
Loaded: loaded (/lib/systemd/system/snapd.seeded.service; enabled; vendor
preset: enabled)
Active: activating (start) since Fri 2021-09-17 19:46:40 UTC; 24min ago
Main PID: 336 (snap)
Tasks: 8 (limit: 4777)
Memory: 35.6M
CGroup: /system.slice/snapd.seeded.service
└─336 /usr/bin/snap wait system seed.loaded
Sep 17 19:46:40 docker systemd[1]: Starting Wait until snapd is fully
seeded...
Inspecting snapd.service's logs, I see some strange messages (for example, a
segmentation fault on taskrunner.go) that could be related to this problem.
I'm attaching the logs to this bug.
This issue is blocking docker.io on impish-proposed, which in turn is
impacting the build of our OCI images for Ubuntu 21.10.
** Affects: docker.io (Ubuntu)
Importance: Undecided
Status: New
** Affects: snapd (Ubuntu)
Importance: Critical
Status: New
** Tags: update-excuse
** Attachment added: "snapd.log"
https://bugs.launchpad.net/bugs/1944004/+attachment/5526026/+files/snapd.log
** Also affects: docker.io (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1944004
Title:
snapd.seeded.service never finishes on non-amd64
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