Fw: [isocpp-parallel] WG14 n3917 - Program termination in the presence of multiple threads

Fw: [isocpp-parallel] WG14 n3917 - Program termination in the presence of multiple threads

[Paul E. McKenney]

Just FYI.  Unless I am missing something, this would not affect the
Linux kernel.  But I could be missing something...

This proposal defines orphaned threads as those persisting past
program termination, for a Linux-kernel example of termination, a call
to panic().  It also includes some advice, which might be criticized
as being incomplete, but on the other hand, all of this was previously
undefined.  ;-)

							Thanx, Paul

----- Forwarded message from David Goldblatt via Parallel <parallel@lists.isocpp.org> -----

Date: Tue, 14 Jul 2026 10:42:34 -0700
From: David Goldblatt via Parallel <parallel@lists.isocpp.org>
To: SG1 concurrency and parallelism <parallel@lists.isocpp.org>
Reply-To: parallel@lists.isocpp.org
Cc: David Goldblatt <davidtgoldblatt@gmail.com>
Subject: [isocpp-parallel] WG14 n3917 - Program termination in the presence of
	multiple threads

Link <https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3917.htm>

WG14 will likely discuss this in Ottawa. I don't have a ton of time for
WG14 stuff these days, but some people on this reflector might have
opinions.

- David

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Re: Fw: [isocpp-parallel] WG14 n3917 - Program termination in the presence of multiple threads

[Florian Weimer]

* Paul E. McKenney:

> Just FYI.  Unless I am missing something, this would not affect the
> Linux kernel.  But I could be missing something...

This seems to require new behavior?

* SYS_tkill and SYS_tgkill with signal SIGABRT terminate the current
  thread or a group of threads abnormally

The proposal is a bit weird to me.  It seems to discourage using an
atexit handler to shut down a service thread (by synchronizing with it).

Thanks,
Florian