A race condition happens when calling ask_password_auto() multiple times
to unlock several disks on boot and effectively no password caching is
utilized. This patch fixes it by polling the cache when waiting for
the password.
This splits the "environment" field of Manager into two:
transient_environment and client_environment. The former is generated
from configuration file, kernel cmdline, environment generators. The
latter is the one the user can control with "systemctl set-environment"
and similar.
Both sets are merged transparently whenever needed. Separating the two
sets has the benefit that we can safely flush out the former while
keeping the latter during daemon reload cycles, so that env var settings
from env generators or configuration files do not accumulate, but
dynamic API changes are kept around.
Note that this change is not entirely transparent to users: if the user
first uses "set-environment" to override a transient variable, and then
uses "unset-environment" to unset it again things will revert to the
original transient variable now, while previously the variable was fully
removed. This change in behaviour should not matter too much though I
figure.
Fixes: #9972
If networkd starts earlier than all network interfaces are initialized,
then uninitialized interfaces are staying in pending state and cannot
become up.
With this, such interfaces are started after receiving 'change' event.
If WorkingDirectory is on NFS, root might only have the privileges of
nobody and the chdir to the WorkingDirectory might fail, even if the
user running the service would have the proper privileges to chdir to
that directory.
Fixes#10568
I found zero references to busnames.target, using git grep "busnames".
(And we do not install using a wildcard units/*.*. There is no
busnames.target installed on my Fedora 28 system).
There is difference between time set by the user and real elapsed time because of accuracy feature.
If you change the system date(or time) between these times, the timer drops.
You can easily reproduce it with the following command.
-----------------------------------------------------------
$ systemd-run --on-active=3s ls; sleep 3; date -s "`date`"
-----------------------------------------------------------
In the following command, the problem is rarely reproduced. But it exists.
---------------------------------------------------------------------------------------------
$ systemd-run --on-active=3s --timer-property=AccuracySec=1us ls ; sleep 1; date -s "`date`"
---------------------------------------------------------------------------------------------
Note : Global AccuracySec value.
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$ cat /etc/systemd/system.conf
DefaultTimerAccuracySec=1min
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