[LTP] [PATCH v2] pthread_detach_1-2: Fix failure on modern glibc

[Wei Gao]

On Thu, Jun 11, 2026 at 05:33:31PM +0200, Martin Doucha wrote:
> Hi,
> this looks like trying to hide a glibc bug to me. I've looked at both the
> POSIX standard and Linux man pages and there is no mention that already
> exited threads may be left joinable. I think we should report this as a bug
> and wait for response from glibc maintainers.

I think is actually not a glibc bug, but correct behavior under POSIX.

Link: The Open Group - pthread_detach (https://pubs.opengroup.org/onlinepubs/9699919799/functions/pthread_detach.html)

Wording: 
1)Under the DESCRIPTION section, it explicitly states:
    > "The behavior is undefined if the value specified by the thread argument to pthread_detach() does not refer to a joinable thread."

2)Under the CHANGE HISTORY section also mention:

Issue 6
The pthread_detach() function is marked as part of the Threads option.
IEEE Std 1003.1-2001/Cor 2-2004, item XSH/TC2/D6/95 is applied, updating the ERRORS section so that the [EINVAL] and [ESRCH] error cases become optional. <<<<<<

Issue 7
The pthread_detach() function is moved from the Threads option to the Base.
Austin Group Interpretation 1003.1-2001 #142 is applied, removing the [ESRCH] error condition. <<<<<<<<

Also include Adhemerval Zanella who submit the glibc change.

> 
> 
> 
> -- 
> Martin Doucha   mdoucha@suse.cz
> SW Quality Engineer
> SUSE LINUX, s.r.o.
> CORSO IIa
> Krizikova 148/34
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> Czech Republic