Package: mtail
Version: 3.0.0~rc43-1+b1
Severity: important
mtail.service fails to start on Bullseye due to cgroup v2 / unified hierarchy:
$ systemctl status mtail
● mtail.service - MTail
Loaded: loaded (/lib/systemd/system/mtail.service; enabled; vendor preset:
enabled)
Active: failed (Result: exit-code) since Tue 2021-03-16 14:32:35 CET; 1s
ago
Process: 2082384 ExecStart=/usr/bin/mtail --progs /etc/mtail --logtostderr
--port 3903 --logs $LOGS (code=killed, signal=TERM)
Process: 2082385 ExecStartPost=/bin/sh -c echo 0 >
/sys/fs/cgroup/memory/system.slice/mtail.service/memory.swappiness
(code=exited, status=2)
Main PID: 2082384 (code=killed, signal=TERM)
CPU: 49ms
Indeed memory.swappiness isn't a thing anymore:
$ find /sys/fs/cgroup/ -type f -iname 'memory.swappiness'
$
-- System Information:
Debian Release: bullseye/sid
APT prefers testing-security
APT policy: (500, 'testing-security'), (400, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 5.10.0-3-amd64 (SMP w/4 CPU threads)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages mtail depends on:
ii adduser 3.118
ii daemon 0.7-1
ii init-system-helpers 1.60
ii libc6 2.31-9
ii tzdata 2021a-1
mtail recommends no packages.
mtail suggests no packages.
-- no debconf information
