mincore man page on FreeBSD

Man page or keyword search:  
man Server   9747 pages
apropos Keyword Search (all sections)
Output format
FreeBSD logo
[printable version]

MINCORE(2)		    BSD System Calls Manual		    MINCORE(2)

     mincore — determine residency of memory pages

     Standard C Library (libc, -lc)

     #include <sys/mman.h>

     mincore(const void *addr, size_t len, char *vec);

     The mincore() system call determines whether each of the pages in the
     region beginning at addr and continuing for len bytes is resident.	 The
     status is returned in the vec array, one character per page.  Each char‐
     acter is either 0 if the page is not resident, or a combination of the
     following flags (defined in <sys/mman.h>):

     MINCORE_INCORE	       Page is in core (resident).

     MINCORE_REFERENCED	       Page has been referenced by us.

     MINCORE_MODIFIED	       Page has been modified by us.

     MINCORE_REFERENCED_OTHER  Page has been referenced.

     MINCORE_MODIFIED_OTHER    Page has been modified.

     MINCORE_SUPER	       Page is part of a "super" page. (only i386 &

     The information returned by mincore() may be out of date by the time the
     system call returns.  The only way to ensure that a page is resident is
     to lock it into memory with the mlock(2) system call.

     The mincore() function returns the value 0 if successful; otherwise the
     value -1 is returned and the global variable errno is set to indicate the

     The mincore() system call will fail if:

     [ENOMEM]		The virtual address range specified by the addr and
			len arguments is not fully mapped.

     [EFAULT]		The vec argument points to an illegal address.

     madvise(2), mlock(2), mprotect(2), msync(2), munmap(2), getpagesize(3)

     The mincore() system call first appeared in 4.4BSD.

BSD			       January 17, 2003				   BSD

List of man pages available for FreeBSD

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
Vote for polarhome
Free Shell Accounts :: the biggest list on the net