---
name: "undocumented"
section: "2"
platform: "linux"
package: "manpages-dev"
version: "2.39-1"
release: "Debian 4.0 (Etch)"
platforms: ["linux"]
url: "https://new.carta.tech/undocumented"
---

# undocumented(2)

undocumented system calls

## NAME

madvise1, rt\_sigaction, rt\_sigpending, rt\_sigprocmask, rt\_sigqueueinfo, rt\_sigreturn, rt\_sigsuspend, rt\_sigtimedwait, ugetrlimit - undocumented system calls

## SYNOPSIS

Undocumented system calls.

## DESCRIPTION

The 2.4.20 kernel knows 253 syscalls for the i386 architecture. The above ones have not yet been documented.

## SEE ALSO

[**obsolete**(2)](/obsolete/2.md), [**syscalls**(2)](/syscalls/2.md), [**unimplemented**(2)](/unimplemented/2.md)