[systemd-devel] Race in post scripts for systemd/systemd-units

[Andrey Borzenkov]

2010/10/16 Andrey Borzenkov <arvidjaar at gmail.com>:
> (Working on Mandriva cooker), systemd v11.
>
> {pts/0}% sudo rpm -Fvh RPMS/x86_64/*
> Подготовка...     ########################################### [100%]
>   1:systemd-units          ########################################### [ 50%]
>   2:systemd                ########################################### [100%]
> Failed to issue method call: Did not receive a reply. Possible causes
> include: the remote application did not send a reply, the message bus
> security policy blocked the reply, the reply timeout expired, or the
> network connection was broken.
>
> Well, systemd post re-executes systemd and systemd-units reloads it.
> Is it possible that systemd is busy with reloading so it does not
> respond to request for re-execution?
>
> Somehow I am not really fond of simply increasing timeout in
> daemon_reload() but may be this is the simplest solution.
>

May be not. This just happened with only daemon-reexec call. Here is
/var/log/messages for installation:

Oct 16 19:40:16 cooker urpmi: transaction on / (remove=0, install=0, upgrade=4)
Oct 16 19:40:23 cooker perl: [RPM] systemd-debug-11-2mdv2011.0 installed
Oct 16 19:40:24 cooker perl: [RPM] lib64cairomm1.0_1-1.9.2-1mdv2011.0 installed
Oct 16 19:40:25 cooker perl: [RPM] systemd-units-11-2mdv2011.0 installed
Oct 16 19:40:25 cooker dbus-daemon: [system] Reloaded configuration
Oct 16 19:40:25 cooker dbus-daemon: [system] Reloaded configuration
Oct 16 19:40:25 cooker dbus-daemon: [system] Reloaded configuration
Oct 16 19:40:27 cooker perl: [RPM] systemd-11-2mdv2011.0 installed
Oct 16 19:40:27 cooker systemd[1]: Reexecuting.
Oct 16 19:40:27 cooker systemd[1]: systemd 11 running in system mode.
(+PAM +LIBWRAP +AUDIT -SELINUX +SYSVINIT; fedora)
Oct 16 19:40:27 cooker systemd[1]: [/etc/rc.d/init.d/networker:13]
Failed to add LSB Provides name nsrexecd.service, ignoring: File
exists
Oct 16 19:40:27 cooker systemd[1]: [/etc/rc.d/init.d/iptables:18]
Failed to add LSB Provides name firewall.service, ignoring: File
exists
Oct 16 19:40:27 cooker systemd[1]: Unit vmware.service entered failed state.
Oct 16 19:40:27 cooker systemd[1]: Startup finished in 3s 671ms 10us
(kernel) + 1h 18min 8s 806ms 88us (userspace) = 1h 18min 12s 477ms
98us.
Oct 16 19:40:28 cooker perl: [RPM] systemd-11-1mdv2011.0 removed
Oct 16 19:40:30 cooker perl: [RPM] systemd-units-11-1mdv2011.0 removed
Oct 16 19:40:31 cooker perl: [RPM] lib64cairomm1.0_1-1.9.1-1mdv2011.0 removed
Oct 16 19:40:31 cooker perl: [RPM] systemd-debug-11-1mdv2011.0 removed

So systemd was actually re-executed just fine; but for some reasons
systemctl failed to get reply?