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The docs didn't talk about this, so let's add an explicit mention that the
boot loader must cooperate. And also make the message from the generator
notice level. This should help people who are trying to mix grub and the
gpt auto logic.
If we fail to write the timeout, let's not exit. (This might happen if another
generator writes the same dropin.) No need to make this fatal.
Since this is non-fatal now and the name doesn't need to be unique, let's make
the drop-in name shorter.
open_parent_devno() which is a helper is moved out of the main "business logic"
block of various add_*() functions. And parse_proc_cmdline_item() is moved to
the end, near to run() where it is used. No functional change.
We can break if KEYCTL_READ return value is equal to our buffer size.
From keyctl(2):
On a successful return, the return value is always the total size of
the payload data. To determine whether the buffer was of sufficient
size, check to see that the return value is less than or equal to the
value supplied in arg4.
Follow-up for 0d588deae2.
In that commit the output got moved a 2 chars to the right, hence make
sure to also shift the cgroup tree to the right, so that it gets
properly aligned under the cgroup path again.
cryptsetup introduced optional locking scheme that should serialize
unlocking keyslots which use memory hard key derivation
function (argon2). Using the serialization should prevent OOM situation
in early boot while unlocking encrypted volumes.
If udevd receives an exit signal, it releases its reference on the udev
monitor in manager_exit(). If at this time a worker is hanging, and if
the event timeout for this worker expires before udevd exits, udevd
crashes in on_sigchld()->udev_monitor_send_device(), because the monitor
has already been freed.
Fix this by testing the validity of manager->monitor in on_sigchld().
EOF is defined to -1, hence on platforms that have "char" unsigned we
can't compare it as-is, except if we accept an implicit cast. let's make
it an explicit cast, acknowledging the issue.
Fixes: #14118
The original PR was submitted with CPUSetCpus and CPUSetMems, which was later
changed to AllowedCPUs and AllowedMemmoryNodes everywhere (including the parser
used by systemd-run), but not in the parser for unit files.
Since we already released -rc1, let's keep support for the old names. I think
we can remove it in a release or two if anyone remembers to do that.
Fixes#14126. Follow-up for 047f5d63d7.
I see we log this during every boot, even though it is a routine expected event:
Nov 12 14:50:01 krowka systemd[1]: systemd-journald.service: Service has no hold-off time (RestartSec=0), scheduling restart.
(and for other services too). Let's downgrade this to debug level.
https://bugzilla.redhat.com/show_bug.cgi?id=1614871
Use the official glibc API for determining this parameter. In most other
cases in our tree it's better to go directly for RLIMIT_NOFILE since
it's semantically what we want, but for this case it appears more
appropriate to use the friendlier, shorter, explicit API.
We want to use this code in NSS modules, and we never know the execution
environment we are run in there, hence let's move our fds up to ensure
we won't step into dangerous fd territory.
This is similar to how we already do it in sd-bus for client connection
fds.
Before, we'd unref from machine_stop_unit, still keeping the unit name around,
and only forget the name later, when garbage collecting. If we didn't call
manager_stop_unit(), then we wouldn't do the unref. Let's unref at the same
point where we do garbage collection, so that it is always true that
iff we have the name generated with AddRef=1, then have a reference to the unit,
and as soon as we forget the name, we drop the reference.
This should fix the issue when repeated systemd-nspawn --register=yes fails
with "scope already exists" error.
Incidentally, this fixes an error in the code path where r was used instead of q.
Having this function which is called only from one place in a separate file
makes the code harder to follow. In preparation for subsequent changes, let's
make it static.
Apparently some firmwares don't allow us to write this token, and refuse
it with EINVAL. We should normally consider that a fatal error, but not
really in the case of "bootctl random-seed" when called from the
systemd-boot-system-token.service since it's called as "best effort"
service after boot on various systems, and hence we shouldn't fail
loudly.
Similar, when we cannot find the ESP don't fail either, since there are
systems (arch install ISOs) that carry a boot loader capable of the
random seed logic but don't mount it after boot.
Fixes: #13603
This should help visualize where one manager's territory begins and
another's starts. Do this by underlining (since it's a "cut" point an
underline made most sense to me). Since underlining is not visible on
the console let's also show an ellipses for all lines that are
delegation boundaries.
Unfortunately this all is not as useful as it appears. The
"trusted.delegate" xattr is only visible to roo, which means
"systemd-cgls" has be called as root to show the boundaries.
Unfortunately cgroupfs doesn't support unprivileged xattrs on cgroups.
Let's mark cgroups that are delegation boundaries to us. This can then
be used by tools such as "systemd-cgls" to show where the next manager
takes over.
