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e2a42c0c43
Before #30884, the user state is tied to user@.service (user service manager). However, #30884 introduced sessions that need no manager, and we can no longer rely on that. Consider the following situation: 1. A 'background-light' session '1' is created (i.e. no user service manager is needed) 2. Session '1' scope unit pulls in user-runtime-dir@.service 3. Session '1' exits. A stop job is enqueued for user-runtime-dir@.service due to StopWhenUnneeded=yes 4. At the same time, another session '2' which requires user manager is started. However, session scope units have JobMode=fail, therefore the start job for user-runtime-dir@.service that was pulled in by session '2' scope job is deleted as it conflicts with the stop job. We want session scope units to continue using JobMode=fail, but we still need the dependencies to be started correctly, i.e. explicitly requested by logind beforehand. Therefore, let's stop using StopWhenUnneeded=yes for user-runtime-dir@.service, and track users' `started` and `stopping` state based on that when user@.service is not needed. Then, for every invocation of user_start(), we'll recheck if we need the service manager and start it if so. Also, the dependency type on user-runtime-dir@.service from user@.service is upgraded to `BindsTo=`, in order to ensure that when logind stops the former, the latter is stopped as well.
31 lines
863 B
SYSTEMD
31 lines
863 B
SYSTEMD
# SPDX-License-Identifier: LGPL-2.1-or-later
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#
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# This file is part of systemd.
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#
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# systemd is free software; you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation; either version 2.1 of the License, or
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# (at your option) any later version.
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[Unit]
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Description=User Manager for UID %i
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Documentation=man:user@.service(5)
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BindsTo=user-runtime-dir@%i.service
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After=user-runtime-dir@%i.service dbus.service systemd-oomd.service
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IgnoreOnIsolate=yes
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[Service]
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User=%i
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PAMName=systemd-user
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Type=notify-reload
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ExecStart={{LIBEXECDIR}}/systemd --user
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Slice=user-%i.slice
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KillMode=mixed
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Delegate=pids memory cpu
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DelegateSubgroup=init.scope
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TasksMax=infinity
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TimeoutStopSec={{ DEFAULT_USER_TIMEOUT_SEC*4//3 }}s
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KeyringMode=inherit
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OOMScoreAdjust=100
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MemoryPressureWatch=skip
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