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bug#33018: 26.1.50; thread starvation with async processes and accept-pr
From: |
Eli Zaretskii |
Subject: |
bug#33018: 26.1.50; thread starvation with async processes and accept-process-output |
Date: |
Sat, 20 Oct 2018 11:34:40 +0300 |
> From: "Basil L. Contovounesios" <contovob@tcd.ie>
> Cc: <michael.albinus@gmx.de>, <33018@debbugs.gnu.org>
> Date: Wed, 17 Oct 2018 21:46:39 +0100
>
> > I think the relevant code should be instrumented to show which thread
> > waits for what process(es).
>
> Each thread launches a single wget process which it then waits for
> before dying, and current-thread is always eq to that thread around
> calls to accept-process-output. Or are you talking about some other
> type of thread?
I was talking about low-level details: we set up the file-descriptor
mask passed to pselect, to tell it which descriptors to wait on. The
call to accept-process-output is supposed to arrange for the
descriptor where the corresponding process will write to be one of
those on which the corresponding pselect will wait. I was thinking
that perhaps we become confused and don't ask pselect called by a
thread to wait on the process which was launched by that thread.
> Either way, I'll report back when I've had a deeper look into what Emacs
> is doing, unless someone beats me to it.
Thanks.
> I'm sorry I've been talking more than doing, but university and house
> hunting will dominate my free time for the next few weeks.
No need to be sorry, we all have our lives.
- bug#33018: 26.1.50; thread starvation with async processes and accept-process-output, (continued)
- bug#33018: 26.1.50; thread starvation with async processes and accept-process-output, Eli Zaretskii, 2018/10/16
- bug#33018: 26.1.50; thread starvation with async processes and accept-process-output, Basil L. Contovounesios, 2018/10/17
- bug#33018: 26.1.50; thread starvation with async processes and accept-process-output, Eli Zaretskii, 2018/10/17
- bug#33018: 26.1.50; thread starvation with async processes and accept-process-output, Basil L. Contovounesios, 2018/10/17
- bug#33018: 26.1.50; thread starvation with async processes and accept-process-output, Eli Zaretskii, 2018/10/17
- bug#33018: 26.1.50; thread starvation with async processes and accept-process-output, Eli Zaretskii, 2018/10/17
- bug#33018: 26.1.50; thread starvation with async processes and accept-process-output, Basil L. Contovounesios, 2018/10/17
- bug#33018: 26.1.50; thread starvation with async processes and accept-process-output,
Eli Zaretskii <=
- bug#33018: 26.1.50; thread starvation with async processes and accept-process-output, Basil L. Contovounesios, 2018/10/17