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systemd-serialgetty: do not use BindsTo

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This unit was changed from 'BindsTo' in the following commit.
"""
commit f0f359ec9210759f6b4dbfb35d3fba8af208c43a
Author: Jason Wessel <jason.wessel@windriver.com>
Date:   Thu Aug 29 07:00:31 2019 -0700

    serial-getty@.service: Allow device to fast fail if it does not exist
"""

It was changed back to 'BindTo' in the following commit.
"""
commit 63bbff61b78c651339c4b18d8376187379ec3b3c
Author: Otavio Salvador <otavio.salvador@gmail.com>
Date:   Fri Jun 12 14:30:44 2020 -0300

    systemd: Sync systemd-serialgetty@.service with upstream
"""

This is now causing runtime problem for qemuarm64. The default.target
is not reached until a timeout. Output is like below.

"""
root@qemuarm64:~# systemd-analyze
Bootup is not yet finished (org.freedesktop.systemd1.Manager.FinishTimestampMonotonic=0).
Please try again later.
Hint: Use 'systemctl list-jobs' to see active jobs
root@qemuarm64:~# systemctl list-jobs
JOB UNIT TYPE STATE
102 getty.target start waiting
1 multi-user.target start waiting
95 systemd-update-utmp-runlevel.service start waiting
110 serial-getty@hvc0.service start waiting
111 dev-hvc0.device start running
"""

We can see that we are waiting for /dev/hvc0, while in fact there's no /dev/hvc0.
Jason's commit actually solves such problem.

So restore to use Jason's method. Do not use 'BindsTo'.

(From OE-Core rev: b1d0eacc431517695c348ad14f4452be607c0b62)

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 43b989c1231d3d867303ccebceda72364a9519ee)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Chen Qi 2020-06-19 00:02:55 -07:00 committed by Richard Purdie
parent b2fc2c658c
commit 9b60a175fc
1 changed files with 2 additions and 1 deletions
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meta/recipes-core/systemd/systemd-serialgetty/serial-getty@.service
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@ -11,7 +11,8 @@
Description=Serial Getty on %I
Documentation=man:agetty(8) man:systemd-getty-generator(8)
Documentation=http://0pointer.de/blog/projects/serial-console.html
BindsTo=dev-%i.device
PartOf=dev-%i.device
ConditionPathExists=/dev/%i
After=dev-%i.device systemd-user-sessions.service plymouth-quit-wait.service getty-pre.target
After=rc-local.service