Sunday, July 17, 2016

man-pages-4.07 is released

I've released man-pages-4.07. The release tarball is available on The browsable online pages can be found on The Git repository for man-pages is available on

This release resulted from patches, bug reports, reviews, and comments from around 50 contributors. The release includes changes to over 140 man pages. Among the more significant changes in man-pages-4.07 are the following:

  • Two new pages by Darrick Wong document ioctl() operations that he added to the kernel: ioctl_ficlonerange(2) documents the FICLONE and FICLONERANGE ioctls, and ioctl_fideduperange(2) documents the FIDEDUPERANGE ioctl.
  • I've written a new page, mount_namespaces(7), which documents mount namespaces and the shared subtrees feature.
  • I've written a new page, nextup(3), which documents the new nextup() and nextdown() functions that will appear in the upcoming glibc 2.24 release.
  • I've added documentation for the MS_SHARED, MS_PRIVATE, MS_SLAVE, MS_UNBINDABLE, and MS_REC flags to the mount(2) page. In addition, I've substantially restructured, clarified, and tweaked the existing text in this manual page.
  • I (with help from Kees Cook, Jann Horn, Eric W. Biederman, and Stephen Smalley) have added documentation of so-called "ptrace access mode checks" to the ptrace(2) page. These kinds of checks are performed in a number of system calls and other interfaces (e.g., accesses to various /proc files), and many other manual pages have been updated in this release to note the kind of check performed and add a reference to the ptrace(2) page.
  • I've made various changes in the proc(5), most notably documenting various ptrace access mode checks, and also describing various new fields that have been added to the /proc/PID/status file in recent kernel releases.
  • I added a description of the effect of capabilities within a user namespace to the user_namespaces(7) page.
  • I substantially rewrote the getitimer(2) page, and in the process changed the license to one that is unambiguously free.