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This matches what is done in networkd very closely. In fact even the
policy descriptions are all identical (with s/network/resolve), except
for the last one:
resolved has org.freedesktop.resolve1.revert while
networkd has org.freedesktop.network1.revert-ntp and
org.freedesktop.network1.revert-dns so the description is a bit different.
This doesn't matter much, but let's just do the loop once and allocate
the populate the result set on the fly. If we find an error, it'll get
cleaned up automatically.
https://bugzilla.redhat.com/show_bug.cgi?id=1746057
This only affects systemd-resolved. bus_open_system_watch_bind_with_description()
is also used in timesyncd, but it has no methods, only read-only properties, and
in networkd, but it annotates all methods with SD_BUS_VTABLE_UNPRIVILEGED and does
polkit checks.
When booting with Fedora-Server-dvd-x86_64-30-20190411.n.0.iso,
/proc/cmdline is empty (libvirt, qemu host with bios, not sure if that
matters), after installation to disk, anaconda would "crash" in kernel-core
%posttrans, after calling kernel-install, because dracut would fail
with
> Could not determine the kernel command line parameters.
> Please specify the kernel command line in /etc/kernel/cmdline!
I guess it's legitimate, even if unusual, to have no cmdline parameters.
Two changes are done in this patch:
1. do not fail if the cmdline is empty.
2. if /usr/lib/kernel/cmdline or /etc/kernel/cmdline are present, but
empty, ignore /proc/cmdline. If there's explicit configuration to
have empty cmdline, don't ignore it.
The same change was done in dracut:
https://github.com/dracutdevs/dracut/pull/561.
Traditionally, user logins had a $PATH in which /bin was before /sbin, while
root logins had a $PATH with /sbin first. This allows the tricks that
consolehelper is doing to work. But even if we ignore consolehelper, having the
path in this order might have been used by admins for other purposes, and
keeping the order in user sessions will make it easier the adoption of systemd
user sessions a bit easier.
Fixes#733.
https://bugzilla.redhat.com/show_bug.cgi?id=1744059
OOM handling in manager_default_environment wasn't really correct.
Now the (theorertical) malloc failure in strv_new() is handled.
Please note that this has no effect on:
- systems with merged /bin-/sbin (e.g. arch)
- when there are no binaries that differ between the two locations.
E.g. on my F30 laptop there is exactly one program that is affected:
/usr/bin/setup -> consolehelper.
There is less and less stuff that relies on consolehelper, but there's still
some.
So for "clean" systems this makes no difference, but helps with legacy setups.
$ dnf repoquery --releasever=31 --qf %{name} --whatrequires usermode
anaconda-live
audit-viewer
beesu
chkrootkit
driftnet
drobo-utils-gui
hddtemp
mate-system-log
mock
pure-ftpd
setuptool
subscription-manager
system-config-httpd
system-config-rootpassword
system-switch-java
system-switch-mail
usermode-gtk
vpnc-consoleuser
wifi-radar
xawtv
When we would iterate over the lookup paths for each unit, making the list as
short as possible was important for performance. With the current cache, it
doesn't matter much. Two classes of paths were being removed:
- paths which don't exist in the filesystem
- paths which symlink to a path earlier in the search list
Both of those points cause problems with the caching code:
- if a user creates a directory that didn't exist before and puts units there,
now we will notice the new mtime an properly load the unit. When the path
was removed from list, we wouldn't.
- we now properly detect whether a unit path is on the path or not.
Before, if e.g. /lib/systemd/system, /usr/lib/systemd/systemd were both on
the path, and /lib was a symlink to /usr/lib, the second directory would be
pruned from the path. Then, the code would think that a symlink
/etc/systemd/system/foo.service→/lib/systemd/system/foo.service is an alias,
but /etc/systemd/system/foo.service→/usr/lib/systemd/system/foo.service would
be considered a link (in the systemctl link sense).
Removing the pruning has a slight negative performance impact in case of
usr-merge systems which have systemd compiled with non-usr-merge paths.
Non-usr-merge systems are deprecated, and this impact should be very small, so
I think it's OK. If it turns out to be an issue, the loop in function that
builds the cache could be improved to skip over "duplicate" directories with
same logic that the cache pruning did before. I didn't want to add this,
becuase it complicates the code to improve a corner case.
Fixes#13272.
*We* control the sysctl setting. If the user configured IPv6, then we apply the
settings, and just make sure that at some point during the configuration the
sysctl is disabled (i.e. ipv6 enabled) if we have IPv6 configured.
Replaces #13283.
This test runs under qemu, which may run on some testbeds without
acceleration; in those cases, a 10s timeout is frequently too short.
Simply removing the timeout to allow the default timeoutsec should
be enough time for the test to finish, even on very slow testbeds.
The acceleromater in the GPD win is in the base, mark it as such so that
iio-sensor-proxy does not try to use it for display rotation.
Note as mentioned in the added comment the DMI strings are unfortunately
somewhat generic, but the combination of using all DMI strings including
the BIOS build data + the sensor modalias should be unique enough.
This avoids unnecessary noise in the stderr logs which dd always produces,
such as:
0+0 records in
0+0 records out
0 bytes copied, 0.000155284 s, 0.0 kB/s
Using truncate should not result in any functional change; the image will
still be created as a sparse file of the size specified.
In Ubuntu CI, we test binaries from the installed system, not from
$BUILD_DIR, so use the appropriate binary. Most of the calls to the
binaries are part of checking/processing asan-built binaries, and so
did not apply to Ubuntu CI, except for generating noise in the stderr
log like:
objdump: '/tmp/autopkgtest.83yGoI/build.fHB/src/test/TEST-01-BASIC/systemd-journald': No such file
However this also applies to the call to systemd-nspawn, which the debian
upstream test wrapper was sed-adjusting to use the installed binary
instead of the binary in $BUILD_DIR. This commit allows removing that
sed processing of the test-functions file during Ubuntu CI test.
journalctl --unit= already did this, and allows you to tail all the logs
for a certain slice easily. It seemed only natural to make --user-unit
behave in a similar way.
The _SYSTEMD_USER_SLICE field was not documented as being added by
journald, so I have added that to the documentation too.
Furthermore, I have documented the existing behaviour of --unit= and the
new behaviour of --user-unit=
The behaviour was actually not documented before, so I am also OK with
removing the match for the --unit= command instead. The user would then
have to manually provide _SYSTEMD_SLICE= filter to journalctl in both
cases. Both options work for me.
If logging disappears issues are hard to debug, hence let's give
journald a slight edge over other services when the OOM killer hits.
Here are the special adjustments we now make:
systemd-coredump@.service.in OOMScoreAdjust=500
systemd-journald.service.in OOMScoreAdjust=-250
systemd-udevd.service.in OOMScoreAdjust=-1000
(i.e. the coredump processing is made more likely to be killed on OOM,
and udevd and journald are less likely to be killed)
The alternative would be to recreate the cache, but dropins can be created very
often for transient settings, so updating the cache seems like a much faster
option.
Fixes#13287.
The file descriptor was opened with O_CLOEXEC, so in practice this doesn't
change too much, but it seems cleaner to always close the old fd when
changing the device path.
