man/kernel-command-line.xml

@@ -386,9 +386,8 @@
         <term><varname>systemd.default_timeout_start_sec=</varname></term>
 
         <listitem>
-          <para>Overrrides the default start job timeout <varname>DefaultTimeoutStartSec=</varname> at
+          <para>Overwrites the default start job timeout <varname>DefaultTimeoutStartSec=</varname> at boot. For details,
-          boot. For details, see
+          see <citerefentry><refentrytitle>systemd-system.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
-          <citerefentry><refentrytitle>systemd-system.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
         </listitem>
       </varlistentry>
 
@@ -396,20 +395,7 @@
         <term><varname>systemd.watchdog_device=</varname></term>
 
         <listitem>
-          <para>Overrrides the watchdog device path <varname>WatchdogDevice=</varname>. For details, see
+          <para>Overwrites the watchdog device path <varname>WatchdogDevice=</varname>. For details, see
-          <citerefentry><refentrytitle>systemd-system.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><varname>systemd.watchdog_sec=</varname></term>
-
-        <listitem>
-          <para>Overrrides the watchdog timeout settings otherwise configured with
-          <varname>RuntimeWatchdog=</varname>, <varname>RebootWatchdog=</varname> and
-          <varname>KExecWatchdogSec=</varname>. Takes a time value (if no unit is specified, seconds is the
-          implicitly assumed time unit) or the special strings <literal>off</literal> or
-          <literal>default</literal>. For details, see
           <citerefentry><refentrytitle>systemd-system.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
         </listitem>
       </varlistentry>

man/systemd-system.conf.xml

@@ -135,13 +135,11 @@
 
         <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>), or the special strings
+        <literal>h</literal>, <literal>d</literal>, <literal>w</literal>). If set to zero the watchdog logic
-        <literal>off</literal> or <literal>default</literal>. If set to <literal>off</literal>
+        is disabled: no watchdog device is opened, configured, or pinged. If set to the special string
-        (alternatively: <literal>0</literal>) the watchdog logic is disabled: no watchdog device is opened,
+        <literal>default</literal> the watchdog is opened and pinged in regular intervals, but the timeout
-        configured, or pinged. If set to the special string <literal>default</literal> the watchdog is opened
+        is not changed from the default. If set to any other time value the watchdog timeout is configured to
-        and pinged in regular intervals, but the timeout is not changed from the default. If set to any other
+        the specified value (or a value close to it, depending on hardware capabilities).</para>
-        time value the watchdog timeout is configured to the specified value (or a value close to it,
-        depending on hardware capabilities).</para>
 
         <para>If <varname>RuntimeWatchdogSec=</varname> is set to a non-zero value, the watchdog hardware
         (<filename>/dev/watchdog</filename> or the path specified with <varname>WatchdogDevice=</varname> or

src/basic/virt.c

@@ -165,7 +165,6 @@ static int detect_vm_dmi_vendor(void) {
                 { "Parallels",           VIRTUALIZATION_PARALLELS },
                 /* https://wiki.freebsd.org/bhyve */
                 { "BHYVE",               VIRTUALIZATION_BHYVE     },
-                { "Microsoft",           VIRTUALIZATION_MICROSOFT },
         };
         int r;
 

src/core/load-fragment.c

@@ -6347,8 +6347,6 @@ int config_parse_watchdog_sec(
                 void *data,
                 void *userdata) {
 
-        usec_t *usec = data;
-
         assert(filename);
         assert(lvalue);
         assert(rvalue);
@@ -6356,12 +6354,12 @@ int config_parse_watchdog_sec(
         /* This is called for {Runtime,Reboot,KExec}WatchdogSec= where "default" maps to
          * USEC_INFINITY internally. */
 
-        if (streq(rvalue, "default"))
+        if (streq(rvalue, "default")) {
-                *usec = USEC_INFINITY;
+                usec_t *usec = data;
-        else if (streq(rvalue, "off"))
-                *usec = 0;
-        else
-                return config_parse_sec(unit, filename, line, section, section_line, lvalue, ltype, rvalue, data, userdata);
 
-        return 0;
+                *usec = USEC_INFINITY;
+                return 0;
+        }
+
+        return config_parse_sec(unit, filename, line, section, section_line, lvalue, ltype, rvalue, data, userdata);
 }

src/core/main.c

@@ -544,8 +544,6 @@ static int parse_proc_cmdline_item(const char *key, const char *value, void *dat
 
                 if (streq(value, "default"))
                         arg_runtime_watchdog = USEC_INFINITY;
-                else if (streq(value, "off"))
-                        arg_runtime_watchdog = 0;
                 else {
                         r = parse_sec(value, &arg_runtime_watchdog);
                         if (r < 0) {

src/core/system.conf.in

@@ -29,9 +29,9 @@
 #CPUAffinity=
 #NUMAPolicy=default
 #NUMAMask=
-#RuntimeWatchdogSec=off
+#RuntimeWatchdogSec=0
 #RebootWatchdogSec=10min
-#KExecWatchdogSec=off
+#KExecWatchdogSec=0
 #WatchdogDevice=
 #CapabilityBoundingSet=
 #NoNewPrivileges=no