Requirements

All requirements are for commands collecting events, for now only collect.

Mandatory requirements:

• Retis needs CAP_SYS_ADMIN, CAP_BPF, CAP_SYSLOG and access to all files listed in the requirements.

• The following kernel configuration:

• CONFIG_BPF_SYSCALL=y.

• CONFIG_DEBUG_INFO_BTF=y to parse kernel functions and types.

• Access to /sys/kernel/btf and /proc/kallsyms.

Not strictly required but best for user experience and feature scope:

• The following kernel configuration:
• CONFIG_KPROBES=y to allow using kprobes.

• CONFIG_PERF_EVENTS=y to retrieve stack traces (& probably more).

• debugfs mounted to /sys/kernel/debug to allow filtering functions and events.

• /etc/os-release to gather information about the current distribution.

Supported operating systems

Those are operating systems we know are compatible with running Retis. Of course the list is not exhaustive (let us know if we can add new lines).

Operating system	Notes
Fedora	All officially supported versions including Rawhide
RHEL9
CentOS Stream 9
RHEL8	>= 8.6
Ubuntu Jammy