| ulimit(1P, 1p) | set or report file size limit |
| ulimit(3) | get and set user limits |
| ulimit(3P, 3p) | get and set process limits |
| afs_syscall, break, fattach, fdetach, getmsg, getpmsg, gtty, isastream, lock, madvise1, mpx, prof, putmsg, putpmsg, security, stty, tuxcall, vserver, phys, unimplemented, ftime, profil, ulimit(2) | unimplemented system calls |
| UNIMPLEMENTED(2) | System Calls Manual | UNIMPLEMENTED(2) |
afs_syscall, break, fattach, fdetach, ftime, getmsg, getpmsg, gtty, isastream, lock, madvise1, mpx, prof, profil, putmsg, putpmsg, security, stty, tuxcall, ulimit, vserver - unimplemented system calls
Unimplemented system calls.
These system calls are not implemented in the Linux kernel.
These system calls always return -1 and set errno to ENOSYS.
Note that ftime(3), profil(3), and ulimit(3) are implemented as library functions.
Some system calls, like alloc_hugepages(2), free_hugepages(2), ioperm(2), iopl(2), and vm86(2) exist only on certain architectures.
Some system calls, like ipc(2), create_module(2), init_module(2), and delete_module(2) exist only when the Linux kernel was built with support for them.
syscalls(2)
| 2026-02-08 | Linux man-pages 6.17 |