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bug#56606: Acknowledgement (29.0.50; recent master fails with "creating
From: |
Eli Zaretskii |
Subject: |
bug#56606: Acknowledgement (29.0.50; recent master fails with "creating pipe: too many open files") |
Date: |
Sun, 17 Jul 2022 13:20:12 +0300 |
> From: Stephen Leake <stephen_leake@stephe-leake.org>
> Date: Sun, 17 Jul 2022 02:42:04 -0700
>
> On emacs-devel, Eli said:
>
> AFAICT, this loop in deactivate_process:
>
> /* Beware SIGCHLD hereabouts. */
>
> for (i = 0; i < PROCESS_OPEN_FDS; i++)
> close_process_fd (&p->open_fd[i]);
>
> doesn't close the last of the 4 descriptors opened by the 2 emacs_pipe
> calls in make-pipe-process. It calls 'close' with the right value,
> and close returns zero, but the pipe stays open. In Emacs 28, this
> same loop successfully closes the descriptor. I don't know why.
>
> Perhaps bisecting could help.
I think commit a81669c could be the culprit.
bug#56606: 29.0.50; recent master fails with "creating pipe: too many open files", Stephen Leake, 2022/07/18