Package: systemd Version: 237-1 Severity: normal Using tab-auto-completion with systemctl can cause /sbin/init to go to 100% CPU utilization and lock up the terminal. This is probably due to the implementation of it's bash-completion file.
This can be replicated by typing "systemctl start whatever" and then quickly pressing tab a few times. The result is first that the terminal appears to lock up; no input is accepted from the user. Additionally, CPU usage on the system goes to 100% for a long time, dependent upon how many times the user pressed tab. -- Package-specific info: -- System Information: Debian Release: buster/sid APT prefers unstable APT policy: (500, 'unstable'), (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 4.14.0-3-amd64 (SMP w/4 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages systemd depends on: ii adduser 3.116 ii libacl1 2.2.52-3+b1 ii libapparmor1 2.12-2 ii libaudit1 1:2.8.2-1 ii libblkid1 2.30.2-0.3 ii libc6 2.26-6 ii libcap2 1:2.25-1.2 ii libcryptsetup12 2:2.0.0-1 ii libgcrypt20 1.8.1-4 ii libgpg-error0 1.27-5 ii libidn11 1.33-2.1 ii libip4tc0 1.6.1-2+b1 ii libkmod2 25-1 ii liblz4-1 0.0~r131-2+b1 ii liblzma5 5.2.2-1.3 ii libmount1 2.30.2-0.3 ii libpam0g 1.1.8-3.6 ii libseccomp2 2.3.1-2.1 ii libselinux1 2.7-2 ii libsystemd0 237-1 ii mount 2.30.2-0.3 ii procps 2:3.3.12-3 ii util-linux 2.30.2-0.3 Versions of packages systemd recommends: ii dbus 1.12.2-1 ii libpam-systemd 237-1 Versions of packages systemd suggests: ii policykit-1 0.105-18 pn systemd-container <none> Versions of packages systemd is related to: pn dracut <none> ii initramfs-tools 0.130 ii udev 237-1 -- no debconf information