This reverts the following two commits:
- "udev: decrease devlink priority for encrypted partitions"
c4521fc17b.
- "udev: decrease devlink priority for iso disks"
df1dccd255.
These commits are workarounds for issues caused by
331aa7aa15.
With the previous commit, these workarounds are not necessary anymore,
as partitions are always processed later than their whole disk, and
a decrypted volume is also processed later than its backing volume.
Several udev rules depends on the previous behavior, i.e. that udev
replaces the devlink with the newer device node when the priority is
equivalent. Let's relax the optimization done by
331aa7aa15.
Follow-up for 331aa7aa15.
Note, the offending commit drops O(N) of file reads per uevent, and this
commit does not change the computational order. So, hopefully the
performance impact of this change is small enough.
Fixes#28141.
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.
Let's unconditionally drop privileges before submitting the coredump log
message.
Let's make the codepaths where we acquired a coredump and where we
didn't more alike: let's drop privs in both cases.
This is not only safer, but means that the coredump messages are always
accessible by the owner of the aborted process.
Let's not claim a process dumped core if that was disabled via resource
limits.
While we are at it, switch from stack to heap allocation for the log
message, as it includes a stack trace which can be arbitrarily large.
Fixes: #28559
If we have a DDI that contains only a /usr/ tree (and which is thus
combined with a tmpfs for root on boot) we previously would try to apply
idmapping to the tmpfs, but not the /usr/ mount. That's broken of
course.
Fix this by applying it to both trees.
Let's wait until the child is fully done with mounting it's own
instances of procfs/sysfs before we destroy our fully visible copies of
it.
This borrows heavily from Christian Brauners fix#29521, but splits the
place + sync into two steps so that the child payload is not started
before the parent has destroyed the procfs instance.
Alternative to: #29521Fixes: #28157
The actual default is 2^15 and that is also 32b kernels default.
Fix the value, mention 32b and do not talk about default which may
depend on nr_cpus.
Fix: #29607
The device node may be different from we want to activate, and we may
try to activate different device in the subsequent loop. In such case,
we should enable the automatic removal for the unexpected device.
Otherwise, it will not be removed even when not necessary anymore.
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).