Package: sysvinit-utils Version: 2.93-8 Followup-For: Bug #926896 Hi Dmitry,
I tested 'dd if=/dev/urandom of=/dev/null' and it works. Both when dd is running under normal user and as root. And when pidof is running as normal user and as root. (it also works when dd is run as root, and pidof as normal user, because relevant data is still in procfs and in ps aux). It also works fine with 'bs=64k' Weird. I will try to test it again with different if/of. Thanks for checking. -- System Information: Debian Release: buster/sid APT prefers unstable APT policy: (500, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.19.0-2-amd64 (SMP w/32 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 /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages sysvinit-utils depends on: ii init-system-helpers 1.56+nmu1 ii libc6 2.28-8 ii util-linux 2.33.1-0.1 sysvinit-utils recommends no packages. sysvinit-utils suggests no packages. -- no debconf information