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Diffstat (limited to 'man/systemd.conf.xml')
| -rw-r--r-- | man/systemd.conf.xml | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/man/systemd.conf.xml b/man/systemd.conf.xml index ba144da8cf..c7890287b5 100644 --- a/man/systemd.conf.xml +++ b/man/systemd.conf.xml @@ -149,6 +149,51 @@ controllers in separate hierarchies.</para></listitem> </varlistentry> + + <varlistentry> + <term><varname>RuntimeWatchdogSec=</varname></term> + <term><varname>ShutdownWatchdogSec=</varname></term> + + <listitem><para>Configure the hardware + watchdog at runtime and at + reboot. Takes a timeout value in + seconds (or in other time units if + suffixed with <literal>ms</literal>, + <literal>min</literal>, + <literal>h</literal>, + <literal>d</literal>, + <literal>w</literal>). If + <varname>RuntimeWatchdogSec=</varname> + is set to a non-zero value the + watchdog hardware + (<filename>/dev/watchdog</filename>) + will be programmed to automatically + reboot the system if it is not + contacted within the specified timeout + interval. The system manager will + ensure to contact it at least once in + half the specified timeout + interval. This feature requires a + hardware watchdog device to be + present, as it is commonly the case in + embedded and server systems. Not all + hardware watchdogs allow configuration + of the reboot timeout, in which case + the closest available timeout is + picked. <varname>ShutdownWatchdogSec=</varname> + may be used to configure the hardware + watchdog when the system is asked to + reboot. It works as a safety net to + ensure that the reboot takes place + even if a clean reboot attempt times + out. By default + <varname>RuntimeWatchdogSec=</varname> + defaults to 0 (off), and + <varname>ShutdownWatchdogSec=</varname> + to 10min. These settings have no + effect if a hardware watchdog is not + available.</para></listitem> + </varlistentry> </variablelist> </refsect1> |