Bug#1057459: systemd: journald polluting dmesg buffer with repeated rotation messages

[Vallo Kallaste]

Package: systemd
Version: 252.17-1~deb12u1
Severity: normal
X-Debbugs-Cc: m1na1se at posteo.ee

Dear Maintainer,

Removing /var/log/journal or setting Storage=volatile in
/etc/systemd/journald.conf leads to pollution of dmesg buffer with
messages like below. This was not the case in Debian 11.
I intend to log only to ephemeral /run/log/journal storage and expect
log rotations to not pollute kernel message buffer.
This is a system with 2GB of RAM and hence ~200MB tmpfs /run:

/--/
# df -h /run
Filesystem      Size  Used Avail Use% Mounted on
tmpfs           197M  9.4M  188M   5% /run
# free -m
               total        used        free      shared  buff/cache   available
Mem:            1966         315        1603           9         195        1651
Swap:              0           0           0
/--/

/--/
syslog:info  : [ 1530.305989] systemd-journald[201]: Data hash table of /run/log/journal/1291a3ff2de3409fac97aa1895ef7cd4/system.journal has a fill level at 75.0 (3362 of 4480 items, 2580480 file size, 767 bytes per hash table item), suggesting rotation.
syslog:info  : [ 1530.312764] systemd-journald[201]: /run/log/journal/1291a3ff2de3409fac97aa1895ef7cd4/system.journal: Journal header limits reached or header out-of-date, rotating.
syslog:info  : [ 1540.509704] systemd-journald[201]: Data hash table of /run/log/journal/1291a3ff2de3409fac97aa1895ef7cd4/system.journal has a fill level at 75.0 (3361 of 4480 items, 2580480 file size, 767 bytes per hash table item), suggesting rotation.
syslog:info  : [ 1540.518605] systemd-journald[201]: /run/log/journal/1291a3ff2de3409fac97aa1895ef7cd4/system.journal: Journal header limits reached or header out-of-date, rotating.
syslog:info  : [ 1550.720364] systemd-journald[201]: Data hash table of /run/log/journal/1291a3ff2de3409fac97aa1895ef7cd4/system.journal has a fill level at 75.0 (3361 of 4480 items, 2580480 file size, 767 bytes per hash table item), suggesting rotation.
syslog:info  : [ 1550.730576] systemd-journald[201]: /run/log/journal/1291a3ff2de3409fac97aa1895ef7cd4/system.journal: Journal header limits reached or header out-of-date, rotating.
/--/


-- Package-specific info:

-- System Information:
Debian Release: 12.2
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 6.1.0-13-amd64 (SMP w/2 CPU threads; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages systemd depends on:
ii  libacl1            2.3.1-3
ii  libaudit1          1:3.0.9-1
ii  libblkid1          2.38.1-5+b1
ii  libc6              2.36-9+deb12u3
ii  libcap2            1:2.66-4
ii  libcryptsetup12    2:2.6.1-4~deb12u1
ii  libfdisk1          2.38.1-5+b1
ii  libgcrypt20        1.10.1-3
ii  libkmod2           30+20221128-1
ii  liblz4-1           1.9.4-1
ii  liblzma5           5.4.1-0.2
ii  libmount1          2.38.1-5+b1
ii  libp11-kit0        0.24.1-2
ii  libseccomp2        2.5.4-1+b3
ii  libselinux1        3.4-1+b6
ii  libssl3            3.0.11-1~deb12u2
ii  libsystemd-shared  252.17-1~deb12u1
ii  libsystemd0        252.17-1~deb12u1
ii  libzstd1           1.5.4+dfsg2-5
ii  mount              2.38.1-5+b1

Versions of packages systemd recommends:
ii  chrony [time-daemon]            4.3-2+deb12u1
ii  dbus [default-dbus-system-bus]  1.14.10-1~deb12u1

Versions of packages systemd suggests:
ii  libfido2-1             1.12.0-2+b1
pn  libqrencode4           <none>
pn  libtss2-esys-3.0.2-0   <none>
pn  libtss2-mu0            <none>
pn  libtss2-rc0            <none>
pn  polkitd | policykit-1  <none>
pn  systemd-boot           <none>
pn  systemd-container      <none>
pn  systemd-homed          <none>
pn  systemd-resolved       <none>
pn  systemd-userdbd        <none>

Versions of packages systemd is related to:
ii  dbus-user-session  1.14.10-1~deb12u1
pn  dracut             <none>
ii  initramfs-tools    0.142
ii  libnss-systemd     252.17-1~deb12u1
ii  libpam-systemd     252.17-1~deb12u1
ii  udev               252.17-1~deb12u1

-- no debconf information