cgroup: immediately remove all cgroups which run empty
Some controllers have scaling problems when many empty cgroups exist.
Hence, as soon as we get a notification that a cgroup is empty, delete
it. This is also nice to keep the systemd-cgls output short.
Ran Benita [Wed, 2 Nov 2011 08:48:49 +0000 (10:48 +0200)]
bash-completion: update with new verbs and arguments
Adds arguments --root= --runtime --no-legend.
Adds verbs link mask unmask reenable list-unit-files.
Also uses list-unit-files to make nicer enable and disable completions.
Dexter Morgan [Fri, 28 Oct 2011 17:16:33 +0000 (19:16 +0200)]
Add Mageia support
This patch adds support for the Mageia Linux distribution:
http://www.mageia.org/
Mageia is a fork of Mandriva although some divergence has already occured
and thus inclusion of these changes upstream allow us to (hopefully)
migrate more rapidly to the new standard approaches systemd offers.
Indeed, we already use the preferred mechanism of OS identification via
the /etc/os-release file rather than a distro specific variation.
This patch mostly mirrors the patch added previously for Mandriva
support. In addition to those original authors, this patch was mostly
written by Dexter Morgan with help from Colin Guthrie and Eugeni Dodonov.
Tom Gundersen [Mon, 17 Oct 2011 11:01:08 +0000 (13:01 +0200)]
cryptsetup-generator: avoid ordering cycle on swap
Devices with random keys (swap), should not be ordered before local-fs.target,
as this creates a cycle with systemd-load-random-seed.service (and also it
does not make sense, a swap device is not a local-fs).
mount: order remote mounts after both network.target and remote-fs-pre.target
Since remote-fs-pre.target is optional we cannot count on it to order
remote mounts after network.target, so let's add that order explicitly
in addition to remote-fs-pre.target.
cgroup: always recreate cgroup before we try to apply attributes
We might have trimmed the cgroup tree previously, hence don't trust our
own "realized" flag, always recreate cgroup tree before applying our
attributes to make sure this actually works out.
initctl: don't use dbus connection after PID 1 got respawned
After reexec PID 1 our bus connection is invalidated. Hence don't try to
reuse it, just terminate so that when we are spawned the next time we
just get a new one.
systemctl: make list-unit-files output more economical
The first column is given the width of the widest entry,
if possible, otherwise all entries are ellipsized to fit
in ($COLUMNS - (width of second column)).
[ Added a few fixes, calculate state_cols too, respect '--no-legend',
better handling of '--full' -- michich ]
Dave Reisner [Wed, 12 Oct 2011 00:56:53 +0000 (20:56 -0400)]
systemctl-completion: always invoke with --no-legend
In the case of completion for the 'restart' verb, passing the invalid
unit name (the colums header) causes completion to cease functioning
entirely, with the error:
Failed to issue method call: Unit name UNIT is not valid.
This adds a small wrapper function for systemctl which can have common
options added to it.
Jonathan Nieder [Mon, 17 Oct 2011 19:01:40 +0000 (21:01 +0200)]
audit: do not complain if kernel lacks audit
When running on a kernel without audit support, systemd currently
writes a mysterious-sounding error to its log:
systemd[1]: Failed to connect to audit log: Protocol not supported
Better to suppress the audit_open() failure message when (and only
when) it is due to running on a kernel without audit support, since in
this case the admin probably does not mind systemd not writing to the
audit log. This way, more serious errors like ENOMEM and EACCES will
stand out more.
Tollef Fog Heen [Mon, 17 Oct 2011 19:00:42 +0000 (21:00 +0200)]
service: Drop rcN.d runlevels from SysV services that also exist in rcS.d
Services which claim to start in both rcN.d and rcS.d generate
loops which for some reason seems to usually end up with dbus not
starting and the whole machine being quite unhappy. We now rather
assume that if a service can be started in rcS, it should not also
start in rcN.d.
Michal Schmidt [Mon, 17 Oct 2011 09:12:12 +0000 (11:12 +0200)]
manager: fix a crash in isolating
HASHMAP_FOREACH is safe against the removal of the current entry, but
not against the removal of other entries. job_finish_and_invalidate()
can recursively remove other entries.
It triggered an assertion failure:
Assertion 'j->installed' failed at src/manager.c:1218, function
transaction_apply(). Aborting.
Fix the crash by iterating from the beginning when there is a
possibility that the iterator could be invalid.
It is O(n^2) in the worst case, but that's better than a crash.
service: don't try to guess PID for SysV services anymore
As it turns out there are quite a number of SysV services too broken to
make the guessing work: instead of returning in the parent only after
the child is fully initialized they return immediately. The effect is
that the guessing in systemd might happen too early, at a time where the
final main process doesn't exist yet.
By turning this off we won't try to detect the main pid anymore, with
the effect that all processes of the service in question are considered
equally likely to be the main process.
src/pager.c: In function ‘pager_fallback’:
src/pager.c:35:13: warning: function might be possible candidate for attribute ‘noreturn’ [-Wmissing-noreturn]
units: remount root and API FS before all mount units are applied
In order to ensure that bind mounts copy the final mount settings to the
new bind mount make the root and API FS mount options are applied before
the other file systems are mounted.
Michal Schmidt [Thu, 29 Sep 2011 19:18:17 +0000 (21:18 +0200)]
systemctl: fix corrupted output of units
On some systems the list of units in systemctl output came out wrong,
all on one line and with missing descriptions.
It turns out printf() really attempts to mmap 2G memory when INT_MAX is
passed as the field width. On machines with small virtual memory
without overcommit the mmap inside printf() failed.
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