GNU bug report logs - #75275
30.0.92; `make-thread` bug on macOS 15.2

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From: Gerd Möllmann <gerd.moellmann <at> gmail.com>
To: Alan Third <alan <at> idiocy.org>
Cc: 75275 <at> debbugs.gnu.org, Eli Zaretskii <eliz <at> gnu.org>, stefankangas <at> gmail.com
Subject: bug#75275: 30.0.92; `make-thread` bug on macOS 15.2
Date: Thu, 02 Jan 2025 17:08:30 +0100

Alan Third <alan <at> idiocy.org> writes:

>> But... when I look at fd_handler, that function calls pselect directly.
>> 
>>           result = pselect (nfds, &readfds, wfds, NULL, tmo, NULL);
>> 
>> 
>> Can that be right?
>
> I think that's OK as we've already called thread_select further up.
> I've a vague memory of putting this in as a work-around.
>
> We call thread_select with a zero timeout to give other threads a
> chance to grab the lock, then carry on as normal, running the run loop
> and fd_handler which calls pselect.
>
> To be fair, though, I think when we set this up I didn't understand
> the code as well as I do now, so perhaps it was the wrong thing to do.

OK, thanks!

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