bus-util: add protocol error type explanation
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@ -1772,9 +1772,9 @@
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<listitem><para>Only defined for the service unit type, this environment variable is passed to all
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<varname>ExecStop=</varname> and <varname>ExecStopPost=</varname> processes, and encodes the service
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"result". Currently, the following values are defined: <literal>protocol</literal> (in case of a protocol
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violation; if a service did not take the steps required by its configuration), <literal>timeout</literal> (in
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case of an operation timeout), <literal>exit-code</literal> (if a service process exited with a non-zero exit
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code; see <varname>$EXIT_CODE</varname> below for the actual exit code returned), <literal>signal</literal>
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violation; if a service did not take the steps required by its unit configuration), <literal>timeout</literal>
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(in case of an operation timeout), <literal>exit-code</literal> (if a service process exited with a non-zero
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exit code; see <varname>$EXIT_CODE</varname> below for the actual exit code returned), <literal>signal</literal>
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(if a service process was terminated abnormally by a signal; see <varname>$EXIT_CODE</varname> below for the
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actual signal used for the termination), <literal>core-dump</literal> (if a service process terminated
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abnormally and dumped core), <literal>watchdog</literal> (if the watchdog keep-alive ping was enabled for the
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@ -764,6 +764,7 @@ static const struct {
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const char *result, *explanation;
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} explanations [] = {
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{ "resources", "of unavailable resources or another system error" },
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{ "protocol", "the service did not take the steps required by its unit configuration" },
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{ "timeout", "a timeout was exceeded" },
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{ "exit-code", "the control process exited with error code" },
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{ "signal", "a fatal signal was delivered to the control process" },
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