Bug#768168: watchdog does not start at boot

[Michael Biebl]

Am 12.11.2014 um 14:44 schrieb Michael Biebl:
> Am 12.11.2014 um 14:29 schrieb Uwe Storbeck:
>> On Nov 11, Michael Biebl wrote:
>>> Please boot with systemd.log_level=debug on the kernel command line, the
>>> attach the output of "journalctl -alb"
>>
>> I guess these are the relevant lines:
>>
>>   Found ordering cycle on graphical.target/start
>>   Found dependency on multi-user.target/start
>>   Found dependency on watchdog.service/start
>>   Found dependency on graphical.target/start
>>   Breaking ordering cycle by deleting job watchdog.service/start
>>
>> The part of the journal after hardware initialization is attached.
> 
> 
> Yeah, it shows that watchdog.service is involved in dependency cycle and
> systemd therefore removes it from the transaction.
> 
> Here's the service file:
> 
>> [Unit]
>> Description=watchdog daemon
>> After=systemd-update-utmp.service
> 
> Since the service uses DefaultDependencies=yes (the default), this
> explicit after is not necessary.
> 
>> After=runlevel1.target runlevel2.target runlevel3.target runlevel4.target runlevel5.target
> 
> I don't think this does and please don't use that in a service file. We
> don't really want to drag that legacy concept of SysV runlevels into
> native .service files.

To be sure: what are you trying to do here and why? Maybe we can find a
better solution
 	
>>
>> [Service]
>> Type=forking
>> EnvironmentFile=/etc/default/watchdog
>> ExecStartPre=/bin/sh -c '[ -z "${watchdog_module}" ] || [ "${watchdog_module}" = "none" ] || echo /sbin/modprobe $watchdog_module'
> 
> Couldn't you just run "ExecStartPre=-/sbin/modprobe $watchdog_module"?
> The "-" would ignore any errors

Btw, is "echo /sbin/modprobe $watchdog_module" really intended? that
will just output the module name.

Since we already have kernel module autoloading and /etc/modules, is
there a good reason to do it manually in the .service file?


-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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