man-pages-2.67 is released

From: Michael Kerrisk
Date: Mon Oct 22 2007 - 10:45:43 EST


Gidday,

Some news: as from now, my address as man-pages maintainer has changed to
mtk.manpages@xxxxxxxxxx (Mail to the old address will continue to work for
a while, but eventually I will close that account.)

Some older news: the list linux-man@xxxxxxxxxxxxxxx has been created for
the purpose of discussing Linux man page bugs, patches, and maintenance.
To subscribe, send a message to majordomo@xxxxxxxxxxxxxxx, with the body:

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Back to the news as usual...

I recently released man-pages-2.67.

This release is now available for download at:

http://www.kernel.org/pub/linux/docs/manpages
or ftp://ftp.kernel.org/pub/linux/docs/manpages

The changes in this release are primarily formatting fixes, and the
addition of a PROLOG section to the 1p and 3p (POSIX) pages giving a clear
indication that these are POSIX man pages (so as to prevent readers wrongly
understanding that they are looking at a description of Linux behavior).

There are many things to be fixed in the man pages. Help with any of the
problems listed below would be greatly appreciated.

Cheers,

Michael
(man-pages maintenance is supported by Google, as a Google engineer 20%
project.)

=========================================================================

FIXMEs

==========
./man2/futex.2
FIXME
2.6.18 adds (Ingo Molnar) priority inheritance support:
FUTEX_LOCK_PI, FUTEX_UNLOCK_PI, and FUTEX_TRYLOCK_PI. These need
to be documented in the manual page. Probably there is sufficient
material in the kernel source file Documentation/pi-futex.txt.

==========
./man2/ioperm.2
FIXME is the following ("Only the first 0x3ff I/O ports can be
specified in this manner") still true? Looking at changes in
include/asm-i386/processor.h between 2.4 and 2.6 suggests
that the limit is different in 2.6.

==========
./man2/mount.2
FIXME 2.6.15 added flags for "shared sub-tree" functionality:
MS_UNBINDABLE, MS_PRIVATE, MS_SHARED, MS_SLAVE
These need to be documented on this page.
See Documentation/sharedsubtree.txt

FIXME Say more about MS_MOVE

FIXME Document MS_REC, available since 2.4.11.
This flag has meaning in conjunction with MS_BIND and
also with the shared sub-tree flags.

FIXME Can MNT_FORCE result in data loss? According to
the Solaris manual page it can cause data loss on Solaris.
If the same holds on Linux, then this should be documented.

==========
./man2/mprotect.2
FIXME
Document PROT_GROWSUP and PROT_GROWSDOWN

==========
./man2/nfsservctl.2
FIXME The description of nfsservctl() on this page
is woefully thin.

==========
./man2/quotactl.2
FIXME There is much that is missing and/or out of date in this page.
As things stand the page more or less documents Linux 2.2 reality:

Linux 2.2 has:

Q_GETQUOTA
Q_GETSTATS
Q_QUOTAOFF
Q_QUOTAON
Q_RSQUASH (not currently documented)
Q_SETQLIM
Q_SETQUOTA
Q_SETUSE
Q_SYNC

Linux 2.4 has:

Q_COMP_QUOTAOFF
Q_COMP_QUOTAON
Q_COMP_SYNC
Q_GETFMT
Q_GETINFO
Q_GETQUOTA
Q_QUOTAOFF
Q_QUOTAON
Q_SETINFO
Q_SETQUOTA
Q_SYNC
Q_V1_GETQUOTA Q_V1_GETSTATS Q_V1_RSQUASH Q_V1_SETQLIM
Q_V1_SETQUOTA Q_V1_SETUSE
Q_V2_GETINFO Q_V2_GETQUOTA Q_V2_SETFLAGS Q_V2_SETGRACE
Q_V2_SETINFO Q_V2_SETQUOTA Q_V2_SETUSE
Q_XGETQSTAT Q_XGETQUOTA Q_XQUOTAOFF Q_XQUOTAON Q_XQUOTARM
Q_XSETQLIM

Linux 2.6.16 has:

Q_GETFMT
Q_GETINFO
Q_GETQUOTA
Q_QUOTAOFF
Q_QUOTAON
Q_SETINFO
Q_SETQUOTA
Q_SYNC
Q_XGETQSTAT
Q_XGETQUOTA
Q_XQUOTAOFF
Q_XQUOTAON
Q_XQUOTARM
Q_XQUOTASYNC
Q_XSETQLIM

==========
./man2/shmop.2
FIXME A good explanation of the rationale for the existence
of SHMLBA would be useful here

FIXME That last sentence isn't true for all Linux
architectures (i.e., SHMLBA != PAGE_SIZE for some architectures)
-- MTK, Nov 04

==========
./man2/sigaction.2
FIXME si_tid and si_overrun are not documented.
FIXME si_trapno is not documented; is it actually used?

==========
./man5/acct.5
FIXME this page needs to say a lot more, including mentioning
Version 3 format process accounting on Linux.

==========
./man5/proc.5
FIXME 2.6.14 has /proc/PID/numa_maps (if CONFIG_NUMA is
enabled); this needs to be documented.
Info on numa_maps can be found in the patch-2.6.14
Changelog, but this is possibly not up to date.

FIXME 2.6.13 seems to have /proc/vmcore implemented
in the source code, but there is no option available under
'make xconfig'; eventually this should be fixed, and then info
from the patch-2.6.13 and change log could be used to write an
entry in this man page.

FIXME cross check against Documentation/filesystems/proc.txt
to see what information could be imported from that file
into this file.

FIXME Describe /proc/[number]/loginuid
Added in 2.6.11; updating requires CAP_AUDIT_CONTROL

FIXME Describe /proc/[number]/mountstats and
/proc/PID/task/TID/mountstats
Some information can be found in the 2.6.17-rc1 change log.
Added in 2.6.17

FIXME Describe /proc/[number]/oom_adj
Added in 2.6.11; updating requires CAP_SYS_RESOURCE
Mention OOM_DISABLE (-17)
FIXME Describe /proc/[number]/oom_score
Added in 2.6.11; read-only

FIXME Describe /proc/[number]/seccomp
Added in 2.6.12

FIXME Document /proc/config.gz (new in kernel 2.6)

FIXME Actually, the following info abut the /proc/stat 'cpu' field
does not seem to be quite right (at least in 2.6.12)

FIXME The following is not the full picture for the 'intr' of
/proc/stat on 2.6:

FIXME more should be said about /proc/zoneinfo

==========
./man7/capabilities.7
FIXME CAP_KILL also has an effect for threads + setting child
termination signal to other than SIGCHLD: without this
capability, the termination signal reverts to SIGCHLD
if the child does an exec(). What is the rationale
for this?

FIXME CAP_SETUID also an effect in exec(); document this.

FIXME CAP_SYS_NICE also has the following effect for
migrate_pages(2):
do_migrate_pages(mm, &old, &new,
capable(CAP_SYS_NICE) ? MPOL_MF_MOVE_ALL : MPOL_MF_MOVE);

==========
./man7/ipv6.7
FIXME IPV6_CHECKSUM is not documented, and probably should be
FIXME IPV6_JOIN_ANYCAST is not documented, and probably should be
FIXME IPV6_LEAVE_ANYCAST is not documented, and probably should be
FIXME IPV6_V6ONLY is not documented, and probably should be
FIXME IPV6_RECVPKTINFO is not documented, and probably should be
FIXME IPV6_2292PKTINFO is not documented, and probably should be
FIXME there are probably many other IPV6_* socket options that
should be documented

==========
./man7/locale.7
FIXME glibc 2.2.2 added new non-standard locale categories:
LC_ADDRESS, LC_IDENTIFICATION, LC_MEASUREMENT, LC_NAME,
LC_PAPER, LC_TELEPHONE. These need to be documented.

==========
./man7/netlink.7
FIXME More details on NETLINK_INET_DIAG needed.

FIXME More details on NETLINK_XFRM needed.

FIXME More details on NETLINK_ISCSI needed.

FIXME More details on NETLINK_AUDIT needed.

FIXME More details on NETLINK_FIB_LOOKUP needed.

FIXME More details on NETLINK_NETFILTER needed.

FIXME More details on NETLINK_KOBJECT_UEVENT needed.

FIXME NLM_F_ATOMIC is not used any more?

FIXME Explain more about nlmsg_seq and nlmsg_pid.

==========
./man7/socket.7
FIXME Document SO_PASSSEC, added in 2.6.18; there is some info
in the 2.6.18 ChangeLog

==========
./man7/tcp.7
FIXME 2.6.17-rc1 adds the following /proc files, which need to be
documented: tcp_mtu_probing, tcp_base_mss, and
tcp_workaround_signed_windows

FIXME As at Sept 2006, kernel 2.6.18-rc5, the following are
not yet documented (shown with default values):

/proc/sys/net/ipv4/tcp_congestion_control (since 2.6.13)
bic
/proc/sys/net/ipv4/tcp_moderate_rcvbuf
1
/proc/sys/net/ipv4/tcp_no_metrics_save
0

FIXME Document TCP_CONGESTION (new in 2.6.13)

==========
./man7/udp.7
FIXME document UDP_ENCAP (new in kernel 2.5.67)



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