Linux's Control Group v2 interfaces exposes memory.peak, which contains the
"max memory usage recorded for the cgroup and its descendants since the
creation of the cgroup."
This commit adds a new property "MemoryPeak" for units and makes "systemctl
show" display this value if it is available.
Fixes#29878.
Signed-off-by: Florian Schmaus <flo@geekplace.eu>
In mkosi, we can't use kernel-install directly but we do want to
mimick its behavior as much as possible. Let's make that easier by
making it easy to fetch data from kernel-install as JSON.
To get all the necessary data, we extend the inspect verb to also
allow passing in a kernel version and initrds, to mimick the "add"
verb. The kernel version is used to determine the "Entry Directory",
and in absence of auto-detection of kernel version in kernel-install
we have to allow users to pass it.
We also add --no-pager while we're at it.
This changes how the "extra" command line arguments passed to vmspawn
are handled.
Previously they were appended to the QEMU command line directly.
Now they are appended to the kernel command line using SMBIOS instead.
If one sets the SystemMaxUse=64G by the current documentation would expect that each files size would be around 1/8 of this value (8G), althought if the SystemMaxFileSize is not explicit set, it has a max of 128M per file.
This module reads password from kernel keyring and sets it as PAM authtok.
It's inspired by gdm's pam_gdm, which reads the LUKS password stored by
systemd-cryptsetup, so Gnome Keyring can be automatically unlocked if set
to the same password (when autologin is enabled so the user doesn't enter
a password in gdm).
This implements the DHCPv4 equivalent of the DHCPv6 Rapid Commit option,
enabling a lease to be selected in an accelerated 2-message exchange
instead of the typical 4-message exchange.
Same idea as with bootctl, we might be doing image builds from a
system that doesn't boot with UEFI but we still might want to measure
stuff for the image we're building so let's not gate this behind
ENABLE_BOOTLOADER.
bootctl is rather useful to have, even if on a system without UEFI,
as it has a number of verbs that are unrelated to UEFI (e.g kernel-identify),
and more importantly, it supports --root to operate on directory trees
(which could be intended to be deployed on UEFI) so let's make sure we
always build it.
If user requests hybrid sleep, we should always use 'suspend'
disk mode. If that's not supported, let's correctly report it
so they can choose plain hibernation instead. HybridSleepMode=
serves no purpose in this case and should be removed.
Addresses https://github.com/systemd/systemd/pull/29681#discussion_r1369812785
This is like --cat-config, but omits the comments and empty lines.
The name is incoungrous with --cat-config, but I don't see a nice way to
call it that wouldn't be annoyingly long.
pager_open() is moved to cat_config() to remove some lines from run().
When looking at configuration, often a user wants to suppress the comments and
just look at the parts that actually configure something, roughly equivalent to
systemd-analyze cat-config … | rg -v '^(#|;|$)
This switch implements this natively, skipping lines that start with a comment
character or only contain whitespace.
For formats that have section headers, section headers are skipped, if only
followed by stuff that would be skipped. (The last section header is printed
when we're about to print some actual output.)
Note that the caller doesn't know if the format has headers or not. We do format
type detection in pretty-print.c. So the caller only specifies tldr=true|false, and
conf_files_cat() figures out if the format has headers and whether those should
be handled specially.
The comments that show the file name are always printed, even if all of the file
is suppressed.
This is a partial answer to the discussions in
https://github.com/systemd/systemd/pull/28919,
https://github.com/systemd/systemd/pull/29248. If the default config is shown in
config files, the user can conveniently use '--tldr' to show the relevant parts.
SuspendState= not to include "disk"
I don't know why these existed in the first place, but as I
justified in the comments, it's simply not sensible to allow
HibernateState= or HybridSleepState= to take values other than
'disk'. So let's just remove those options. Also, SuspendState=
should not contain 'disk'.
Luca Boccassi
Florian Schmaus
Antonio Alvarez Feijoo
Daan De Meyer
Sam Leonard
Yu Watanabe
Maanya Goenka
Lennart Poettering
André Paiusco
Peter Hutterer
Michal Sekletar
Michal Koutný
Jin Liu
Ronan Pigott
Alex Hudspith
Mike Yuan
Zbigniew Jędrzejewski-Szmek
NAHO