[systemd-devel] Antw: Re: confusing message "systemd[1]: nss-lookup.target: Dependency Before=nss-lookup.target dropped"

Ulrich Windl Ulrich.Windl at rz.uni-regensburg.de
Wed Jan 15 07:14:01 UTC 2020


>>> Andrei Borzenkov <arvidjaar at gmail.com> schrieb am 14.01.2020 um 20:08 in
Nachricht <a84b6282-31bb-7677-01fb-e46a39ac9a85 at gmail.com>:
> 14.01.2020 10:57, Ulrich Windl пишет:
>> Hi!
>> 
>> I see the message
>> systemd[1]: nss-lookup.target: Dependency Before=nss-lookup.target dropped
>> several times, wondering:
>> 
>> Does it say "nss-lookup.target" has a dependency "Before=nss-lookup.target"

> that was dropped, or is the first argument simply the wrong unit being 
> displayed? It's systemd 228 of SLES 12 SP4.
>> 
> 
> this is private SUSE patch so wrong list. But if you want to fix it -

Why is this the wrong list? I want to understand what's going on inside
systemd.

> edit /etc/insserv.conf and delete +named from $named line. It is not
> really the fix, more a workaround, but this entry was non-functional
> anyway so it simply eliminates extra noise.

As the system in question does not have named installed, I wonder what's going
on.

The man page systemd.special(7) explains: "systemd automatically adds
dependencies of type
After= for this target unit to all SysV init script service units with an LSB
header referring to the "$named" facility."

So does that mean some LSB script in turn depends on nss-lookup.target?

How could I query "what depends on nss-lookup.target?" amd "what contributes
to nss-lookup.target?"?

> 
>> It's hard to believe a unit has a Before= dependency on itself.
>> Looking into the unit directly, I cannot see such a direct dependency.
>> Or is it "Artificial intelligence biting in its own tail"?
>> 
>> Regards,
>> Ulrich
>> 
>> 
>> 
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> 
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