Issue in man page sigaction.2

Issue in man page sigaction.2

[Helge Kreutzmann]

Without further ado, the following was found:

Issue:     Inconsistency detected by ld.so: dl-open.c: 930: _dl_open: Assertion `_dl_debug_update (args.nsid)->r_state == RT_CONSISTENT' failed!

"$B< sprof -p libdemo.so.1 $LD_PROFILE_OUTPUT/libdemo.so.1.profile>;\n"
"Flat profile:\n"
"\\&\n"
"Each sample counts as 0.01 seconds.\n"
"  %   cumulative   self              self     total\n"
" time   seconds   seconds    calls  us/call  us/call  name\n"
" 60.00      0.06     0.06      100   600.00           consumeCpu1\n"
" 40.00      0.10     0.04     1000    40.00           consumeCpu2\n"
"  0.00      0.10     0.00        1     0.00           x1\n"
"  0.00      0.10     0.00        1     0.00           x2\n"

Re: Issue in man page sigaction.2

[Alejandro Colomar]

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Hi Helge,

> Subject: Re: Issue in man page  sigaction.2

I believe the report is about sprof.2.

On Wed, Dec 24, 2025 at 02:38:24PM +0000, Helge Kreutzmann wrote:
> Without further ado, the following was found:
> 
> Issue:     Inconsistency detected by ld.so: dl-open.c: 930: _dl_open: Assertion `_dl_debug_update (args.nsid)->r_state == RT_CONSISTENT' failed!

This has been reported in
<https://lore.kernel.org/linux-man/20251020093148.vve2nui3xtym4z6m@jwilk.net/>
and previously in
<https://lore.kernel.org/linux-man/ZznJf0DLo7CVHddl@meinfjell.helgefjelltest.de/>

Please go to the thread in
<https://lore.kernel.org/linux-man/87mshxxyol.fsf@oldenburg.str.redhat.com/>
where glibc maintainers are expecting feedback from you (or whoever
reported to you).


Have a lovely day!
Alex


> 
> "$B< sprof -p libdemo.so.1 $LD_PROFILE_OUTPUT/libdemo.so.1.profile>;\n"
> "Flat profile:\n"
> "\\&\n"
> "Each sample counts as 0.01 seconds.\n"
> "  %   cumulative   self              self     total\n"
> " time   seconds   seconds    calls  us/call  us/call  name\n"
> " 60.00      0.06     0.06      100   600.00           consumeCpu1\n"
> " 40.00      0.10     0.04     1000    40.00           consumeCpu2\n"
> "  0.00      0.10     0.00        1     0.00           x1\n"
> "  0.00      0.10     0.00        1     0.00           x2\n"
> 

-- 
<https://www.alejandro-colomar.es>

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Re: Issue in man page sigaction.2

[Helge Kreutzmann]

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Hello Alex,
Am Thu, Dec 25, 2025 at 02:38:07PM +0100 schrieb Alejandro Colomar:
> > Subject: Re: Issue in man page  sigaction.2
> 
> I believe the report is about sprof.2.

No, probably sprof.1.

I rerun the example programm in sprof(1), and it works in the sense,
that no error is reported. However, there is also no sensible output
either, just the headers.

But I don't know (I'm not a programmer) if this is a problem or just a
normal output.

> On Wed, Dec 24, 2025 at 02:38:24PM +0000, Helge Kreutzmann wrote:
> > Without further ado, the following was found:
> > 
> > Issue:     Inconsistency detected by ld.so: dl-open.c: 930: _dl_open: Assertion `_dl_debug_update (args.nsid)->r_state == RT_CONSISTENT' failed!
> 
> This has been reported in
> <https://lore.kernel.org/linux-man/20251020093148.vve2nui3xtym4z6m@jwilk.net/>
> and previously in
> <https://lore.kernel.org/linux-man/ZznJf0DLo7CVHddl@meinfjell.helgefjelltest.de/>
> 
> Please go to the thread in
> <https://lore.kernel.org/linux-man/87mshxxyol.fsf@oldenburg.str.redhat.com/>
> where glibc maintainers are expecting feedback from you (or whoever
> reported to you).

I was not aware that there was an open question directed to me, sorry.
I'm not sure how to properly answer that from this e-mail, I hope it
is sufficient that I simply CC libc-alpha@sourceware.org?

> > "$B< sprof -p libdemo.so.1 $LD_PROFILE_OUTPUT/libdemo.so.1.profile>;\n"
> > "Flat profile:\n"
> > "\\&\n"
> > "Each sample counts as 0.01 seconds.\n"
> > "  %   cumulative   self              self     total\n"
> > " time   seconds   seconds    calls  us/call  us/call  name\n"
> > " 60.00      0.06     0.06      100   600.00           consumeCpu1\n"
> > " 40.00      0.10     0.04     1000    40.00           consumeCpu2\n"
> > "  0.00      0.10     0.00        1     0.00           x1\n"
> > "  0.00      0.10     0.00        1     0.00           x2\n"

This looks like the following with me (Debian stable):

helge@twentytwo:/tmp$ sprof -p libdemo.so.1
$LD_PROFILE_OUTPUT/libdemo.so.1.profile
Flat profile:

Each sample counts as 0,01 seconds.
  %   cumulative   self              self     total
   time   seconds   seconds    calls  us/call  us/call  name

Greetings

         Helge

-- 
      Dr. Helge Kreutzmann                     debian@helgefjell.de
           Dipl.-Phys.                   http://www.helgefjell.de/debian.php
        64bit GNU powered                     gpg signed mail preferred
           Help keep free software "libre": http://www.ffii.de/

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Re: Issue in man page sigaction.2

[Alejandro Colomar]

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Hi Helge,

On 2026-02-08T17:34:54+0000, Helge Kreutzmann wrote:
> Hello Alex,
> Am Thu, Dec 25, 2025 at 02:38:07PM +0100 schrieb Alejandro Colomar:
> > > Subject: Re: Issue in man page  sigaction.2
> > 
> > I believe the report is about sprof.2.
> 
> No, probably sprof.1.

Sorry for the typo.  Yes, it should be sprof.1.

> 
> I rerun the example programm in sprof(1), and it works in the sense,
> that no error is reported. However, there is also no sensible output
> either, just the headers.
> 
> But I don't know (I'm not a programmer) if this is a problem or just a
> normal output.

TBH, I don't know either, as I never used sprof(1).

> 
> > On Wed, Dec 24, 2025 at 02:38:24PM +0000, Helge Kreutzmann wrote:
> > > Without further ado, the following was found:
> > > 
> > > Issue:     Inconsistency detected by ld.so: dl-open.c: 930: _dl_open: Assertion `_dl_debug_update (args.nsid)->r_state == RT_CONSISTENT' failed!
> > 
> > This has been reported in
> > <https://lore.kernel.org/linux-man/20251020093148.vve2nui3xtym4z6m@jwilk.net/>
> > and previously in
> > <https://lore.kernel.org/linux-man/ZznJf0DLo7CVHddl@meinfjell.helgefjelltest.de/>
> > 
> > Please go to the thread in
> > <https://lore.kernel.org/linux-man/87mshxxyol.fsf@oldenburg.str.redhat.com/>
> > where glibc maintainers are expecting feedback from you (or whoever
> > reported to you).
> 
> I was not aware that there was an open question directed to me, sorry.
> I'm not sure how to properly answer that from this e-mail, I hope it
> is sufficient that I simply CC libc-alpha@sourceware.org?

At a minimum, a reply would need the following header fields:

	Cc: <libc-alpha@sourceware.org>
	In-Reply-To: <87mshxxyol.fsf@oldenburg.str.redhat.com>

That should be enough.  Let me know if you need more help.  I've bounced
the whole thread to you so that you have it in your mailbox; that will
make it easier for you to reply.


Have a lovely night!
Alex

> 
> > > "$B< sprof -p libdemo.so.1 $LD_PROFILE_OUTPUT/libdemo.so.1.profile>;\n"
> > > "Flat profile:\n"
> > > "\\&\n"
> > > "Each sample counts as 0.01 seconds.\n"
> > > "  %   cumulative   self              self     total\n"
> > > " time   seconds   seconds    calls  us/call  us/call  name\n"
> > > " 60.00      0.06     0.06      100   600.00           consumeCpu1\n"
> > > " 40.00      0.10     0.04     1000    40.00           consumeCpu2\n"
> > > "  0.00      0.10     0.00        1     0.00           x1\n"
> > > "  0.00      0.10     0.00        1     0.00           x2\n"
> 
> This looks like the following with me (Debian stable):
> 
> helge@twentytwo:/tmp$ sprof -p libdemo.so.1
> $LD_PROFILE_OUTPUT/libdemo.so.1.profile
> Flat profile:
> 
> Each sample counts as 0,01 seconds.
>   %   cumulative   self              self     total
>    time   seconds   seconds    calls  us/call  us/call  name
> 
> Greetings
> 
>          Helge
> 
> -- 
>       Dr. Helge Kreutzmann                     debian@helgefjell.de
>            Dipl.-Phys.                   http://www.helgefjell.de/debian.php
>         64bit GNU powered                     gpg signed mail preferred
>            Help keep free software "libre": http://www.ffii.de/



-- 
<https://www.alejandro-colomar.es>

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Re: Issue in man page sigaction.2

[Helge Kreutzmann]

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Hello Alex,
Am Sun, Feb 08, 2026 at 07:11:07PM +0100 schrieb Alejandro Colomar:
> On 2026-02-08T17:34:54+0000, Helge Kreutzmann wrote:
> That should be enough.  Let me know if you need more help.  I've bounced
> the whole thread to you so that you have it in your mailbox; that will
> make it easier for you to reply.

OK, I'll reply there.

Greetings

          Helge
-- 
      Dr. Helge Kreutzmann                     debian@helgefjell.de
           Dipl.-Phys.                   http://www.helgefjell.de/debian.php
        64bit GNU powered                     gpg signed mail preferred
           Help keep free software "libre": http://www.ffii.de/

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Issue in man page sigaction.2

[Helge Kreutzmann]

Without further ado, the following was found:

Issue:     behaviour → behavior  (according man-pages(7) american English is used)

"POSIX only guarantees B<SI_TIMER> for signals created by "
"I<timer_create>(2).  Implementations are free to also provide it for other "
"types of timers.  The Linux behaviour matches NetBSD."