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https://github.com/clearlinux/systemd-stable.git
synced 2026-09-07 06:03:51 +00:00
Michael Olbrich
880fa850ae
For pluggable ttys such as USB serial devices, the getty is restarted and exits in a loop until the remove event reaches systemd. Under certain circumstances the restart loop can overload the system in a way that prevents the remove event from reaching systemd for a long time (e.g. at least several minutes on a small embedded system). Use the default RestartSec to prevent the restart loop from overloading the system. Serial gettys are interactive units, so waiting an extra 100ms really doesn't make a difference anyways compared to the time it takes the user to log in. (cherry picked from commit4bf04322b8) (cherry picked from commit89b958ef6a)
38 lines
1.0 KiB
Plaintext
38 lines
1.0 KiB
Plaintext
# 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=Serial Getty on %I
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Documentation=man:agetty(8) man:systemd-getty-generator(8)
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Documentation=http://0pointer.de/blog/projects/serial-console.html
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BindsTo=dev-%i.device
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After=dev-%i.device systemd-user-sessions.service plymouth-quit-wait.service
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m4_ifdef(`HAVE_SYSV_COMPAT',
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After=rc-local.service
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)m4_dnl
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# If additional gettys are spawned during boot then we should make
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# sure that this is synchronized before getty.target, even though
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# getty.target didn't actually pull it in.
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Before=getty.target
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IgnoreOnIsolate=yes
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[Service]
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ExecStart=-/sbin/agetty --keep-baud %I 115200,38400,9600
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Type=idle
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Restart=always
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UtmpIdentifier=%I
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TTYPath=/dev/%I
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TTYReset=yes
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TTYVHangup=yes
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KillMode=process
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IgnoreSIGPIPE=no
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SendSIGHUP=yes
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[Install]
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WantedBy=getty.target
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