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In this test /etc/fstab is replaced by -.mount unit. This causes
systemd-remount-fs.service to not remount / rw, which in turn causes various
failures becuase /var is not writable. In particular
systemd-tmpfiles-setup.service reports many failures. This is something
to possibly fix on its own (see https://github.com/systemd/systemd/issues/791);
in the meanwhile let's fix this test so that it doesn't fail, since the
point of the test is to check aliases on mount units, and not a ro root.
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systemd-udev generated an insane amount of log output at debug level.
It would break TEST-02-CRYPTSETUP by filling the overflowing the disk
(which seems to be a bug in itself!).
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It has been replaced by --state=failed.
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WARNING: Image format was not specified for
'/var/tmp/systemd-test.tGi3od/rootdisk.img' and probing guessed raw.
Automatically detecting the format is dangerous for raw images, write
operations on block 0 will be restricted. Specify the 'raw' format
explicitly to remove the restrictions.
Also use unsafe caching mode, we don't care about data integrity here.
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more dhcp fixes
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Cgroup fixes.
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News and other small cleanups
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core: use an AF_UNIX/SOCK_DGRAM socket for cgroup agent notification
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"0 units listed." is still printed.
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Coverity was complaing, but it was a false positive (CID #1354669).
Nevertheless, it's better to rewrite the code so that units is never
null.
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core: expose TriggerLimitIntervalUSec, dump TriggerLimitIntervalSec and TriggerLimitBurst too
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Minor fixes and .po updates
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Before:
$ systemctl show --property TriggerLimitIntervalSec test.socket
TriggerLimitIntervalSec=2000000
After:
$ systemctl show --property TriggerLimitIntervalUSec test.socket
TriggerLimitIntervalUSec=2s
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Fixes: #3194
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Make the XML validate again.
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It's only relevant to DHCP, and it should be where the DUID is configured too.
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networkd lib: cleanup FOREACH_WORD
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change trigger timeout defaults
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For similar reasons as the recent addition of a limit on sessions.
Note that we don't enforce a limit on inhibitors per-user currently, but
there's an implicit one, since each inhibitor takes up one fd, and fds are
limited via RLIMIT_NOFILE, and the limit on the number of processes per user.
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If we have a lot of simultaneous sessions we really shouldn't send the full
list of active sessions with each PropertyChanged message for user and seat
objects, as that can become quite substantial data, we probably shouldn't dump
on the bus on each login and logout.
Note that the global list of sessions doesn't send out changes like this
either, it only supports requesting the session list with ListSessions().
If cients want to get notified about sessions coming and going they should
subscribe to SessionNew and SessionRemoved signals, and clients generally do
that already.
This is kind of an API break, but then again the fact that this was included
was never documented.
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Let's make sure we process session and inhibitor pipe fds (that signal
sessions/inhibtors going away) at a higher priority
than new bus calls that might create new sessions or inhibitors. This helps
ensuring that the number of open sessions stays minimal.
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We really should put limits on all resources we manage, hence add one to the
number of concurrent sessions, too. This was previously unbounded, hence set a
relatively high limit of 8K by default.
Note that most PAM setups will actually invoke pam_systemd prefixed with "-",
so that the return code of pam_systemd is ignored, and the login attempt
succeeds anyway. On systems like this the session will be created but is not
tracked by systemd.
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The unit file settings are called SocketUser= and SocketGroup= hence name these
fields that way in the "systemd-analyze dump" output too.
https://github.com/systemd/systemd/issues/3171#issuecomment-216216995
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Let's lower the default values a bit, and pick different defaults for
Accept=yes and Accept=no sockets.
Fixes: #3167
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No need to check whether alloca() failed...
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The macro determines the right length of a AF_UNIX "struct sockaddr_un" to pass to
connect() or bind(). It automatically figures out if the socket refers to an
abstract namespace socket, or a socket in the file system, and properly handles
the full length of the path field.
This macro is not only safer, but also simpler to use, than the usual
offsetof() + strlen() logic.
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Fixes for memleaks in networkd and test
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dbus-daemon currently uses a backlog of 30 on its D-bus system bus socket. On
overloaded systems this means that only 30 connections may be queued without
dbus-daemon processing them before further connection attempts fail. Our
cgroups-agent binary so far used D-Bus for its messaging, and hitting this
limit hence may result in us losing cgroup empty messages.
This patch adds a seperate cgroup agent socket of type AF_UNIX/SOCK_DGRAM.
Since sockets of these types need no connection set up, no listen() backlog
applies. Our cgroup-agent binary will hence simply block as long as it can't
enqueue its datagram message, so that we won't lose cgroup empty messages as
likely anymore.
This also rearranges the ordering of the processing of SIGCHLD signals, service
notification messages (sd_notify()...) and the two types of cgroup
notifications (inotify for the unified hierarchy support, and agent for the
classic hierarchy support). We now always process events for these in the
following order:
1. service notification messages (SD_EVENT_PRIORITY_NORMAL-7)
2. SIGCHLD signals (SD_EVENT_PRIORITY_NORMAL-6)
3. cgroup inotify and cgroup agent (SD_EVENT_PRIORITY_NORMAL-5)
This is because when receiving SIGCHLD we invalidate PID information, which we
need to process the service notification messages which are bound to PIDs.
Hence the order between the first two items. And we want to process SIGCHLD
metadata to detect whether a service is gone, before using cgroup
notifications, to decide when a service is gone, since the former carries more
useful metadata.
Related to this:
https://bugs.freedesktop.org/show_bug.cgi?id=95264
https://github.com/systemd/systemd/issues/1961
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* gitignore: typo fix for test-networkd-conf
* networkd: fix double include
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bus_append_unit_property_assignment() was missing an argument for
sd_bus_message_append() when processing BlockIODeviceWeight leading to
segfault. Fix it.
Signed-off-by: Tejun Heo <htejun@fb.com>
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Rework DUID setting
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