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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: Wed, 17 Oct 2018 21:20:22 +0300

> From: "Basil L. Contovounesios" <address@hidden>
> Cc: <address@hidden>,  <address@hidden>
> Date: Wed, 17 Oct 2018 19:05:59 +0100
> 
> > Looks like the buffer of the pipe through which Emacs reads the stuff
> > is full, and wget waits for some space there?
> 
> Would that imply that different threads/processes are (re)using the same
> buffer/pipe?

Could be, but it's more likely that Emacs simply doesn't read the
output from wget.

> pselect6(14, [6 7], [], NULL, {tv_sec=99975, tv_nsec=320947003}, {NULL, 8}
> 
> and strace -p <pip of stuck wget> gives:
> 
> write(1, ">]</span></span></h2>\n<p>Emacs i"..., 4096
> 
> The former reminded me of bug#24201: https://debbugs.gnu.org/24201

I could be wrong, but it doesn't look similar to me.  In that bug, the
CPU was pegged, whereas you said that CPU is idle.





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