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There are some places in the systemd which are use the same pattern:
fd_cloexec(STDIN_FILENO, false);
fd_cloexec(STDOUT_FILENO, false);
fd_cloexec(STDERR_FILENO, false);
to unset CLOEXEC for standard file descriptors. This patch introduces
the stdio_unset_cloexec() function to hide this and make code cleaner.
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A 'llu' formatting statement was used in a debugging printf statement
instead of a 'PRIu64'. Correcting that mistake here.
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manager: Only invoke a single sigchld per unit within a cleanup cycle
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* networkd: condition_test() can return a negative error, handle that
If a condition check fails with an error we should not consider the check
successful. Fix that.
We should probably also improve logging in this case, but for now, let's just
unbreak this breakage.
Fixes: #3236
* condition: handle unrecognized architectures nicer
When we encounter a check for an architecture we don't know we should not
let the condition check fail with an error code, but instead simply return
false. After all the architecture might just be newer than the ones we know, in
which case it's certainly not our local one.
Fixes: #3236
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make "machinectl clean" asynchronous, and open it up via PolicyKit
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sd_event_get_iteration() (#3631)
This extends the existing event loop iteration counter to 64bit, and exposes it
via a new function sd_event_get_iteration(). This is helpful for cases like
issue #3612. After all, since we maintain the counter anyway, we might as well
expose it.
(This also fixes an unrelated issue in the man page for sd_event_wait() where
micro and milliseconds got mixed up)
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By default, each iteration of manager_dispatch_sigchld() results in a unit level
sigchld event being invoked. For scope units, this results in a scope_sigchld_event()
which can seemingly stall for workloads that have a large number of PIDs within the
scope. The stall exhibits itself as a SIG_0 being initiated for each u->pids entry
as a result of pid_is_unwaited().
v2:
This patch resolves this condition by only paying to cost of a sigchld in the underlying
scope unit once per sigchld iteration. A new "sigchldgen" member resides within the
Unit struct. The Manager is incremented via the sd event loop, accessed via
sd_event_get_iteration, and the Unit member is set to the same value as the manager each
time that a sigchld event is invoked. If the Manager iteration value and Unit member
match, the sigchld event is not invoked for that iteration.
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sd-device: handle the 'drivers' pseudo-subsystem correctly
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journalctl: Use env variable TMPDIR to save temporary files
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This extends the existing event loop iteration counter to 64bit, and exposes it
via a new function sd_event_get_iteration(). This is helpful for cases like
issue #3612. After all, since we maintain the counter anyway, we might as well
expose it.
(This also fixes an unrelated issue in the man page for sd_event_wait() where
micro and milliseconds got mixed up)
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* test: check resolved generated resolv.conf in networkd-test
Directly verify the contents of /run/systemd/resolve/resolv.conf instead of
/etc/resolv.conf. The latter might be a plain file or a symlink to something
else (like Debian's resolvconf output), and in these cases we cannot make
strong assumptions about the contents.
Drop the "/etc/resolv.conf is a symlink" conditions and the "resolv.conf can
have at most three nameservers" alternatives, as we know that resolved always
adds all nameservers.
Explicitly start resolved at the start of a test to ensure that it is running.
* test: get along with existing system search domains in resolv.conf
The previous change has uncovered a bug in the tests: Existing search domains
can exist in resolv.conf which test_search_domains{,_too_long} didn't take into account.
As existing domains take some of the "max 6 domains" and "max 255 chars" limit,
don't expect that the last items from our test data actually appears in the
output, just the first few.
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build-sys: Convert libshared into a private shared library
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Make `journalctl --directory=... --boot 0` work
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The loop on bus_match_run should break and return immediately if
bus->match_callbacks_modified is true. Otherwise the loop may access
free'd data.
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fixes https://bugzilla.redhat.com/show_bug.cgi?id=842060
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--boot=0 magically meant "this boot", but when used with --file/--directory it
should simply refer to the last boot found in the specified journal. This way,
--boot and --list-boots are consistent.
Fixes #3603.
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Those are just local variables and ref_boot_offset is especially
obnoxious.
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Before --this-boot was deprecated in a331b5e6d47243, it did not take
any arguments.
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It works mostly fine, and can be quite useful to examine data from another
system.
OTOH, a single boot id doesn't make sense with --merge, so mixing with --merge
is still not allowed.
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“systemctl show” added an extra blank line after the dump of the
EnvironmentFile property of the unit.
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Type=notify has a magic overriding case where a NotifyAccess=none
is turned into a NotifyAccess=main for sanity purposes.
This makes docs more clear about such behavior:
https://github.com/systemd/systemd/blob/2787d83c28b7565ea6f80737170514e5e6186917/src/core/service.c#L650:L651
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With commit 6f7da49d00 route-only domains do not get put into resolv.conf's
"search" list any more. Add a comment about the tri-state, to clarify its
semantics and why we are passing a bool parameter into an int type. Also add a
test case for it.
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to hide casting of '-1' strings and make code cleaner.
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Fixes:
```
$ systemctl list-unit-files 'hey\*'
0 unit files listed.
$ systemctl list-unit-files | grep hey
hey\x7eho.service static
```
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We support writing out tags and db files in case a real subsystem called
'drivers' exists, so there is no reason to refuse parsing it.
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The 'drivers' pseudo-subsystem needs special treatment. These pseudo-devices are
found under /sys/bus/drivers/, so needs the real subsystem encoded
in the device_id in order to be resolved.
The reader side already assumed this to be the case.
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Collect the errors and return to the caller, but continue enumerating all devices.
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machinectl: interpret options placed between "shell" verb and machine name
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(#3597)
Let's allow distros to change the support URL to expose in catalog entries by
default. It doesn't make sense to direct end-users to the upstream project for
common errors.
This adds a --with-support-url= switch to configure, which allows overriding
the default at build-time.
Fixes: #2516
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Let's make sure we catch early when a machine doesn't exist that is attempted
to be started or enabled as system service.
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means (#3571)
My educated guess is that #3561 was filed due to confusion around the
systemd-resolve "Data Authenticated:" output. Let's try to clean up the
confusion a bit, and document what it means in the man page.
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Fstab generator fixes
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An incorrectly set if/else chain caused aus to apply the access mode of a
symlink to the directory it is located in. Yuck.
Fixes: #3547
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Link as many binaries as possible with it, to save storage space.
Preserve the static libshared and libbasic for use in libraries, nss
modules and udev.
Libraries need to be static in order to avoid polluting the symbol
namespace.
Udev needs to be static so downstream can avoid strict version dependencies
with the systemd package, and this can complicate upgrade scenarios.
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We do the same already for the root device, hence follow the scheme for /usr
too.
(Also add some explanatory comments.)
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Let's follow the same logic for all mounts here: log errors, and exit the
process uncleanly ultimately, but do not skip further mounts if we encounter a
problem with an earlier one.
Fixes: #2344
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We really shouldn't make up errors like "-1", but use proper errno definitions.
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We have to check for OOM here, let's add that. There's really no point in
checking for path_is_absolute() on the result however, as there's no particular
reason why that should be refused. Also, we don't have similar checks for the
other mount devices the generator deals with, hence don't bother with it here
either. Let's remove that check.
(And it shouldn't return made-up errors like "-1" in this case anyway.)
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unset
Let's a comment about this, to avoid questions popping up like in #2344.
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Fix some test issues
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This makes nspawn tests symmetric with run_qemu() which also exits with 1 if
QEMU is not available.
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Commit 3a18b60489504056f9b0b1a139439cbfa60a87e1 introduced a regression that
disabled the color mode for container.
This patch fixes this.
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