Re: Issue in man page PR_SET_SECUREBITS.2const

[Helge Kreutzmann <debian@helgefjell.de>]

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Hello Alejandro,
Am Sun, Aug 24, 2025 at 09:21:39PM +0200 schrieb Alejandro Colomar:
> Hi Helge,
> 
> > Subject: Re: Issue in man page PR_SET_SECUREBITS.2const
> 
> You probably meant PR_SET_THP_DISABLE.2const.  The text you quoted is
> there:
> 
> 	$ grep -rn THP.disable
> 	man/man2const/PR_SET_THP_DISABLE.2const:9:set the state of the "THP disable" flag for the calling thread
> 	man/man2const/PR_SET_THP_DISABLE.2const:21:Set the state of the "THP disable" flag for the calling thread.
> 	man/man2const/PR_SET_THP_DISABLE.2const:32:The setting of the "THP disable" flag is inherited by a child created via
> 	man/man2const/PR_GET_THP_DISABLE.2const:9:get the state of the "THP disable" flag for the calling thread
> 	man/man2const/PR_GET_THP_DISABLE.2const:22:the "THP disable" flag for the calling thread:

Yes, sorry.

> On Sun, Aug 24, 2025 at 02:48:48PM +0000, Helge Kreutzmann wrote:
> > Without further ado, the following was found:
> > 
> > Issue:    malloc → B<malloc>(3) ?
> 
> Maybe, but we should probably add a reference to malloc_hook(3) instead?

This I cannot judge on, I just see the reference to "malloc" in the
text and hence the question, if this should be turned into a
reference. If malloc_hook(3) is better, than of coures it should be
used.

> Cheers,
> Alex
> 
> > 
> > "Setting this flag provides a method for disabling transparent huge pages for "
> > "jobs where the code cannot be modified, and using a malloc hook with "
> > "B<madvise>(2)  is not an option (i.e., statically allocated data).  The "
> > "setting of the \"THP disable\" flag is inherited by a child created via "
> > "B<fork>(2)  and is preserved across B<execve>(2)."
> 
> -- 
> <https://www.alejandro-colomar.es/>

Greetings

          Helge

-- 
      Dr. Helge Kreutzmann                     debian@helgefjell.de
           Dipl.-Phys.                   http://www.helgefjell.de/debian.php
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