man-pages-5.01 is released

From: Michael Kerrisk (man-pages)
Date: Thu May 09 2019 - 08:53:27 EST


The Linux man-pages maintainer proudly announces:

man-pages-5.01 - man pages for Linux

This release resulted from patches, bug reports, reviews, and comments
from just over 20 people, with just over 70 commits making changes
to around 40 pages.

Tarball download:
Git repository:
Online changelog:

A short summary of the release is blogged at:

The current version of the pages is browsable at:

A selection of changes in this release that may be of interest
to readers of LKML is shown below.



==================== Changes in man-pages-5.01 ====================

Released: 2019-05-09, Munich

Newly documented interfaces in existing pages

Florian Weimer [Michael Kerrisk]
Document the twalk_r() function added in glibc 2.30

Changes to individual pages

Michael Kerrisk
Update kernel version info for JIT compiler

Michael Kerrisk [Jakub Nowak]
CLONE_CHILD_SETTID has effect before clone() returns *in the child*
CLONE_CHILD_SETTID may not have had effect by the time clone()
returns in the parent, which could be relevant if the
CLONE_VM flag is employed. The relevant kernel code is in
schedule_tail(), which is called in ret_from_fork()
in the child.


Michael Kerrisk
Note that stack+environ size is also limited to 3/4 of _STK_LIM
In fs/exec.c::prepare_arg_pages(), we have:

limit = _STK_LIM / 4 * 3;
limit = min(limit, bprm->rlim_stack.rlim_cur / 4);

Michael Kerrisk
Linux man-pages maintainer;
Linux/UNIX System Programming Training: