[Bug 1767971] Re: No such man page: kernel_lockdown.7

2020-11-06 Thread Michael Kerrisk
This bug has been fixed with the upstream release (some days ago) of
man-pages-5.09, which now provides a kernel_lockdown.7 page.

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  No such man page: kernel_lockdown.7

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[Bug 1804185] Re: glibc has statx support in 18.10, but the manpage claims otherwise

2018-11-20 Thread Michael Kerrisk
Upstream maintainer here. Yes, the currently released upstream manual
page is out of date. But this is rectified already for the next upstream
release.

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Title:
  glibc has statx support in 18.10, but the manpage claims otherwise

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Re: [Bug 311558] Re: $LANG and $LANGUAGE not documented in locale manual page

2016-02-21 Thread Michael Kerrisk
On 21 February 2016 at 13:56, Rolf Leggewie <311...@bugs.launchpad.net> wrote:
>> In reply to the initial report:
>>
>> > 'locale' prints not only the values of LC_*, but also LANG and LANGUAGE.
>>
>> Does it really do this on Ubuntu?
>
> Yes, it does.
>
> $ locale
> LANG=de_DE.UTF-8
> LANGUAGE="de:en:jp"
> LC_CTYPE="de_DE.UTF-8"
> LC_NUMERIC=de_DE.UTF-8
> LC_TIME=de_DE.UTF-8
> LC_COLLATE="de_DE.UTF-8"
> LC_MONETARY=de_DE.UTF-8
> LC_MESSAGES=C
> LC_PAPER=de_DE.UTF-8
> LC_NAME=de_DE.UTF-8
> LC_ADDRESS=de_DE.UTF-8
> LC_TELEPHONE=de_DE.UTF-8
> LC_MEASUREMENT=de_DE.UTF-8
> LC_IDENTIFICATION=de_DE.UTF-8
> LC_ALL=

Hmmm -- looking at the glibc sources, locale(1) does not appear to
natively do this. I wonder if this a Debiab/Ubuntu specific patch?

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  $LANG and $LANGUAGE not documented in locale manual page

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Re: [Bug 311558] Re: $LANG and $LANGUAGE not documented in locale manual page

2016-02-17 Thread Michael Kerrisk
Hi Stéphane.

See my reply into the bug. The reporter is confused. AFAIK,
setlocale() ignores LANGUAGE.

Cheers,

Michael


On 17 February 2016 at 00:51, Stéphane Aulery <lk...@free.fr> wrote:
> Hi,
>
> It would be nice to have the manpage of setlocale updated to declare that the 
> env variable "LANGUAGE" will be read to get the language.
> It should also state that the variable LANGUAGE will be the first one (before 
> LC_ALL or LANG).
>
> Thanks.
> For the record, the bug #700213 describes a problem about that.
>
> [This comment is merged from Bug #872343, which is more or less a
> duplicate.]
>
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> manpages in Ubuntu.
> Matching subscriptions: mk-manpages
> https://bugs.launchpad.net/bugs/311558
>
> Title:
>   $LANG and $LANGUAGE not documented in locale manual page
>
> Status in eglibc package in Ubuntu:
>   Triaged
> Status in manpages package in Ubuntu:
>   New
>
> Bug description:
>   Binary package hint: belocs-locales-bin
>
>   'locale' prints not only the values of LC_*, but also LANG and
>   LANGUAGE. These variables should be appropriately documented in the
>   manpage.
>
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[Bug 311558] Re: $LANG and $LANGUAGE not documented in locale manual page

2016-02-17 Thread Michael Kerrisk
In reply to the initial report:

> 'locale' prints not only the values of LC_*, but also LANG and
LANGUAGE.

Does it really do this on Ubuntu? On my Fedora system, locale(1)
displays LANG, but not LANGUAGE. This is consistent with the fact that
LANGUAGE is gettext-specific, as I understand it.

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[Bug 872343] Re: setlocale should say that LANGUAGE is used before LANG

2016-02-17 Thread Michael Kerrisk
Regarding the initial report:

[[
It would be nice to have the manpage of setlocale updated to declare that the 
env variable "LANGUAGE" will be read to get the language. It should also state 
that the variable LANGUAGE will be the first one (before LC_ALL or LANG).
]]

This appears incorrect to me. setlocale(3) is, as far as I know,
ignorant of LANGUAGE. Only gettext(3) knows about LANGUAGE.

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  setlocale should say that LANGUAGE is used before LANG

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[Bug 18574] Re: /etc/environment lacks man page.

2016-02-17 Thread Michael Kerrisk
The point here is that /etc/environment is a pam_env(8) thing. The
pam_env(8) page documents /etc/environment, but users can't easily
discover that information. There needs to me a man page "link" ,
environmen(5), that points to pam_env(8). I filed this report to get
that fixed:

https://fedorahosted.org/linux-pam/ticket/55

** Bug watch added: fedorahosted.org/linux-pam/ #55
   https://fedorahosted.org/linux-pam/ticket/55

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  /etc/environment lacks man page.

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Re: [Bug 1110781] Re: resolv.conf(5) fails to mention some options

2015-04-22 Thread Michael Kerrisk
On 04/22/2015 11:02 AM, Michael Kerrisk (man-pages) wrote:
 Hi Stéphane
 
 On 04/22/2015 02:32 AM, Stéphane Aulery wrote:
 ** Patch added: 0003-resolv.conf.5-document-RES_SNGLKUPREOP.patch

 https://bugs.launchpad.net/ubuntu/+source/manpages/+bug/1110781/+attachment/4380888/+files/0003-resolv.conf.5-document-RES_SNGLKUPREOP.patch
 
 It's not clear to me whether you want me to do something here.
 Maybe I just get this message because I'm auto subscribed to 
 the Ubuntu man pages BTS...

Ahhh -- now I understand. You sent the patch separately.
That's exactly right for me.

Cheers,

Michael


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  resolv.conf(5) fails to mention some options

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Re: [Bug 1110781] Re: resolv.conf(5) fails to mention some options

2015-04-22 Thread Michael Kerrisk
Hi Stéphane

On 04/22/2015 02:32 AM, Stéphane Aulery wrote:
 ** Patch added: 0003-resolv.conf.5-document-RES_SNGLKUPREOP.patch

 https://bugs.launchpad.net/ubuntu/+source/manpages/+bug/1110781/+attachment/4380888/+files/0003-resolv.conf.5-document-RES_SNGLKUPREOP.patch

It's not clear to me whether you want me to do something here.
Maybe I just get this message because I'm auto subscribed to 
the Ubuntu man pages BTS...

Cheers,

Michael


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[Bug 1397652] Re: /dev/random and /dev/urandom world writeable

2015-03-06 Thread Michael Kerrisk
Upstream man-pages maintainer here. This seems to me a man-pages
problem, and I've change the relevant text in the man page to:

   mknod -m 666 /dev/random c 1 8
   mknod -m 666 /dev/urandom c 1 9
   chown root:root /dev/random /dev/urandom

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Title:
  /dev/random and /dev/urandom world writeable

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[Bug 1071746] Re: Missing information in proc(5)

2015-02-26 Thread Michael Kerrisk
Upstream maintainer here.

Regarding the /proc/PID/stat, you need to upgrade your man-pages. An
update to man-pages in May 2014 added documentation for these fields.

Likewise VmSwap in /proc/PID/status is already documented in recent man-
pages.

(See http://man7.org/linux/man-pages/man5/proc.5.html )

For VmPin, the documentation indeed was lacking, and I have added:

  * VmPin:  Pinned  memory  size (since Linux 3.2).  These
are pages that can't be moved because something  needs
to directly access physical memory.

Thanks,

Michael

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Title:
  Missing information in proc(5)

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[Bug 321339] Re: ffsl(3) not in strings.h like manpage says

2014-05-19 Thread Michael Kerrisk
Upsteam maintainer here.  This report does not seem to be correct. The
ffs(3) page does not make this claim, and I'm not sure that it ever did.
The SYNOPSIS shows that including string.h is needed for ffsl () and
ffsll(). (and _GNU_SOURCE must also be defined).

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  ffsl(3) not in strings.h like manpage says

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Re: [Bug 1155695] Re: mq_overview(7) contains outdated, inaccurate fs.mqueue.queues_max limit description

2014-02-22 Thread Michael Kerrisk
On 02/19/2014 11:01 AM, Arto Bendiken wrote:
 Just to follow up on this, we have since abandoned the use of POSIX
 message queues altogether so this issue is no longer an ongoing concern
 for us.
 
 Still, the mq_overview(7) man page continues to refer to the outdated,
 inaccurate queues_max hard limit (INT_MAX instead of 1024) at least as
 of Ubuntu 13.10.

Yes, it's been on my long TODO list to follow this up. Doc will get fixed,
and I hope the kernel too. Tell me, was this limitation the reason to 
abandon PMQs?


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[Bug 737452] Re: man 5 proc has obsolete info

2014-01-24 Thread Michael Kerrisk
I've applied the following patch upstream:

diff --git a/man5/proc.5 b/man5/proc.5
index efb402d..3acf867 100644
--- a/man5/proc.5
+++ b/man5/proc.5
@@ -1198,13 +1198,9 @@ instead.
 .TP
 \fIwchan\fP %lu
 (35) This is the channel in which the process is waiting.
-It is the
-address of a system call, and can be looked up in a namelist if you
-need a textual name.
-(If you have an up-to-date
-.IR /etc/psdatabase ,
-then
-try \fIps \-l\fP to see the WCHAN field in action.)
+It is the address of a location in the kernel where the process is sleeping.
+The corresponding symbolic name can be found in
+.IR /proc/[pid]/wchan .
 .TP
 \fInswap\fP %lu
 (36)
@@ -1479,6 +1475,10 @@ directory are not available if the main thread has 
already terminated
 (typically by calling
 .BR pthread_exit (3)).
 .TP
+.IR /proc/[pid]/wchan  (since Linux 2.6.0)
+The symbolic name corresponding to the location
+in the kernel where the process is sleeping.
+.TP
 .I /proc/apm
 Advanced power management version and battery information when
 .B CONFIG_APM

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  man 5 proc has obsolete info

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[Bug 345062] Re: fread(3) man page EXAMPLES section is misleading

2014-01-23 Thread Michael Kerrisk
The example is okay. The text preceding that example says:

The  following  example reads multiple **single-byte** elements from the
fp stream into the array pointed to by buf.

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  fread(3) man page EXAMPLES section is misleading

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[Bug 121768]

2014-01-07 Thread Michael Kerrisk
*** This bug has been marked as a duplicate of bug 1481 ***

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Title:
  manpage for ld.so mistake

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[Bug 121768]

2014-01-07 Thread Michael Kerrisk
(In reply to Matthias Klose from comment #0)
 [forwarded from https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/121768]
 
 the ld.so manpage says for option LD_DEBUG_OUTPUT that the default value is
 standard output, when in fact it is standard error.

I've amended the ld.so man page to fix this error.

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[Bug 1155695] Re: mq_overview(7) contains outdated, inaccurate fs.mqueue.queues_max limit description

2013-04-02 Thread Michael Kerrisk
 However, it unfortunately does not fix the issue. 
 sysctl still cannot be used to raise the message 
 queue limit above 1024. Given this, ipc_ns-mq_queues_max
 is still initialized to DFLT_QUEUESMAX (256) and 
 ultimately limited by HARD_QUEUESMAX (1024), 
 even if that's not being tested for directly in 
 mqueue_create().

Arto,

Sorry for the delayed follow up., The point of the patch was *not* to
allow the sysctl to be changed. Rather, it was to allow a *privileged*
process to override the limit. Is you DB engine running as a privileged
process? If not, then I suppose a somewhat different patch is in order.

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  mq_overview(7) contains outdated, inaccurate fs.mqueue.queues_max
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[Bug 1155695] Re: mq_overview(7) contains outdated, inaccurate fs.mqueue.queues_max limit description

2013-03-18 Thread Michael Kerrisk
Arto, it's the simple fix, but before I push it further, does the
attached patch fix your problem?

At this point (ii.e., since LInux 3.8), I suspect that the limit that
the kernel code  currently tries to enforce on queues_max is anyway
meaningless. Unprivileged users can nowadays use
clone(CLONE_NEWUSER|CLONE_NEWIPC) to create an arbitrary number of new
IPC namespaces, each of which can be populated with queues_max MQs. So
the hard limit check doesn't really limit users at all (though, as
you've discovered, it does inconvenience them).

** Patch added: mqueue_limit.patch
   
https://bugs.launchpad.net/ubuntu/+source/manpages/+bug/1155695/+attachment/3581440/+files/mqueue_limit.patch

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[Bug 1155695] Re: mq_overview(7) contains outdated, inaccurate fs.mqueue.queues_max limit description

2013-03-17 Thread Michael Kerrisk
This appears to be the relavant change:

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[Bug 1155695] Re: mq_overview(7) contains outdated, inaccurate fs.mqueue.queues_max limit description

2013-03-17 Thread Michael Kerrisk
Arto, clearly the man-page needs some fixing, and I'll look into it.

But, I am curious. Did this change cause some real-world applications to
break?

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[Bug 1155695] Re: mq_overview(7) contains outdated, inaccurate fs.mqueue.queues_max limit description

2013-03-17 Thread Michael Kerrisk
Whoops. Hit post too soon on the last...

The change seems to be this ONE:

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=93e6f119c0ce8a1bba6e81dc8dd97d67be360844

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[Bug 1155695] Re: mq_overview(7) contains outdated, inaccurate fs.mqueue.queues_max limit description

2013-03-17 Thread Michael Kerrisk
Also:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=02967ea08ede0f8cc7e0526aedffdae65a099b07

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Re: [Bug 1155695] Re: mq_overview(7) contains outdated, inaccurate fs.mqueue.queues_max limit description

2013-03-17 Thread Michael Kerrisk
On Sun, Mar 17, 2013 at 12:57 PM, Arto Bendiken a...@bendiken.net wrote:
 Michael, thanks for looking into this.

 In answer to your question: yes, it caused the IPC mechanism in the
 database engine my company develops (dydra.com) to break, causing not a
 little aggravation. While we don't need millions of message queues, we
 had been relying on having at least a few thousand, and 1024 is just too
 low a hard limit. As we can't possibly require a custom-built kernel to
 run our software, we are now contemplating switching from POSIX to SysV
 message queues instead. Not a happy day...

Arto, I don't think you should be doing that. The upstream kernel
broke user space here, and I am sure that was not intended. I would
imagine that an upstream fix that repairs your problem would probably
be accepted. How about we pursue that line instead?

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[Bug 1039260] Re: proc(5) doesn't document all CPU values in /proc/stat

2013-02-12 Thread Michael Kerrisk
This was fixed in upstream 3.46 release, commit
d4fd41208248a9c43eef300804dd3aff70eaa223

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  proc(5) doesn't document all CPU values in /proc/stat

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[Bug 874418] Re: linking against librt doesn't provide sem_post

2012-05-13 Thread Michael Kerrisk
So, it'd be good if someone had directed this to upstream man-pages. I
found this bug report by chance. I've made appropriate changes for the
upcoming man-pages-3.42.

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Title:
  linking against librt doesn't provide sem_post

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[Bug 528020] Re: sk98lin man page should be removed

2012-04-29 Thread Michael Kerrisk
Upstream man-pages-3.41 will add a sentence that the driver was removed
in 2.6.26.

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Title:
  sk98lin man page should be removed

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[Bug 480566] Re: epoll_wait man page error

2012-04-29 Thread Michael Kerrisk
I belive the problem here is a misreading of the English text.

I changed the text slightly in upstream 3.41 from

EINTR The call was interrupted by a signal handler before any of the
  requested events occurred or the timeout expired; see signal(7).

to

EINTR The call was interrupted by a signal handler before either any of the
  requested events occurred or the timeout expired; see signal(7).

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Title:
  epoll_wait man page error

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[Bug 791886] Re: _ISOC99_SOURCE should be __USE_ISOC99

2012-04-29 Thread Michael Kerrisk
The subject line in this report isn't correct.  Read
http://man7.org/linux/man-pages/man7/feature_test_macros.7.html and the
header files carefull!y

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Title:
  _ISOC99_SOURCE should be __USE_ISOC99

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[Bug 382096] Re: syslog(3) doesn't cover openlog()'s ident being NULL

2012-04-29 Thread Michael Kerrisk
Upstream man-pages-3.41 patches as follows:

--- a/man3/syslog.3
+++ b/man3/syslog.3
@@ -66,6 +66,13 @@ opens a connection to the system logger for a program.
 The string pointed to by
 .I ident
 is prepended to every message, and is typically set to the program name.
+If
+.I ident
+is NULL, the program name is used.
+(POSIX.1-2008 does not specify the behavior when
+.I ident
+is NULL.)
+
 The
 .I option
 argument specifies flags which control the operation of

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Title:
  syslog(3) doesn't cover openlog()'s ident being NULL

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[Bug 897257] Re: pipe(2,) int pipe2(int pipefd[2], int flags); needs #include fcntl.h

2012-04-29 Thread Michael Kerrisk
Has been fixed in upstream 3.36.

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Title:
  pipe(2,) int pipe2(int pipefd[2], int flags); needs #include fcntl.h

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[Bug 189208] Re: MNT_DETACH is missing in sys/mount.h

2012-04-29 Thread Michael Kerrisk
The problem has been resolved in glibc.

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Title:
  MNT_DETACH is missing in sys/mount.h

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[Bug 638023] Re: Error in mq_send(3) man page

2012-04-29 Thread Michael Kerrisk
Was fixed in upstream man-pages-3.26 (Sep 2010)

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Title:
  Error in mq_send(3) man page

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[Bug 189208] Re: MNT_DETACH is missing in sys/mount.h

2009-08-27 Thread Michael Kerrisk
I think the problem rather lies in glibc. I filed this bug:

http://sourceware.org/bugzilla/show_bug.cgi?id=10566

** Bug watch added: Sourceware.org Bugzilla #10566
   http://sourceware.org/bugzilla/show_bug.cgi?id=10566

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[Bug 153571] Re: getaddrinfo manpage doesn't match glibc implementation when hints is NULL

2009-08-27 Thread Michael Kerrisk
Note that the reporter is marking a bug against the POSIX man page which
is taken straight from the standard. By definition, this page won't
describe glibc specifics.

I confirm that the reporter is correct in pointing out that glibc
deviates from the standard. (I don't know the reasons) The Linux man
page documents the deviation:

http://www.kernel.org/doc/man-pages/online/pages/man3/getaddrinfo.3.html

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[Bug 153571] Re: getaddrinfo manpage doesn't match glibc implementation when hints is NULL

2009-08-27 Thread Michael Kerrisk
For what it's worth, I filed this glibc bug:
http://sourceware.org/bugzilla/show_bug.cgi?id=10567

** Bug watch added: Sourceware.org Bugzilla #10567
   http://sourceware.org/bugzilla/show_bug.cgi?id=10567

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[Bug 62858] Re: shmctl man differs from kernel operation

2009-08-27 Thread Michael Kerrisk
@Hans Dietz:

Hans,

I'm the upstream man-pages maintainer, and I took a look at this bug
report to see if I should fix anything upstream.

You wrote:

[[
However, setting IPC_RMID in recent Linux kernels has the important side effect 
of CHANGING the key associated with the segment to 0 (aka, IPC_PRIVATE). 
Ideally, this side effect should be removed from the kernel, but the kernel 
folks seem unlikely to do this (the new behavior was mentioned in a 
discussion). Thus, I suggest fixing the shmctl man page to mention this strange 
behavior in the discussion of IPC_RMID: after IPC_STAT will be set. add the 
phrase The segment key may be changed to IPC_PRIVATE as a side effect of 
IPC_RMID.
]]

Your report suggests (in recent kernels) that the kernel's behavior
changed at some point. As far as I can see, there has been no change
from 2.2 through to 2.6.31-rc with respect to this particular point. The
key was always changed to IPC_PRIVATE, so that some program could not do
a shmget() with the original key in order to obtain the ID of the now
deleted object. As far as I know, all other Unix systems take analogous
steps (to prevent a deleted object being re-used).

What is unusual about the Linux implementation (i.e., different from
other systems) is this behavior described in the
http://www.kernel.org/doc/man-pages/online/pages/man2/shmat.2.html man
page:

   On Linux, it is possible to attach a shared memory segment even if it is
   already marked to be deleted.  However, POSIX.1-2001 does not specify 
this
   behavior and many other implementations do not support it.

However, again, this behavior is unchanged in Linux 2.2 to 2.6.31-rc, as
far as I can see.

So, at this point, it doesn't look like any change needs to be made to
the man page. But, I await further input.

Thanks,

Michael

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[Bug 62858] Re: shmctl man differs from kernel operation

2009-08-27 Thread Michael Kerrisk
@David T Chen
David, how did you confirm this bug? The reporter talks of behavior having been 
changed (though as far as I can see, nothing has changed) -- did you confirm 
that behavior was different in an earlier kernel version?

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