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bug#57199: 29.0.50; Processes spawned by Emacs become zombie after resta
From: |
Lars Ingebrigtsen |
Subject: |
bug#57199: 29.0.50; Processes spawned by Emacs become zombie after restarting |
Date: |
Mon, 15 Aug 2022 09:11:44 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) |
Akib Azmain Turja <akib@disroot.org> writes:
> IIUC, Emacs sends SIGHUP (from kill_buffer_processes in process.c) to
> all child processes to kill them just before exiting (or restarting),
> and Tor uses that signal as the reload signal.
[...]
> How can a process resist being killed? SIGKILL is lethal, always. Why
> kill-emacs sends SIGHUP while kill-process and delete-process sends
> SIGKILL?
Because we want processes started by Emacs to be allowed to shut down
gracefully upon Emacs exit, but with explicit `kill-process', we don't
care about that as much.
So the problem here is that you're starting a process that responds to
SIGHUP by not shutting down, and I don't think there's anything we can
do on the Emacs side to help with that. Perhaps you can write a wrapper
script that does the right thing on HUP.
But I don't think there's anything to be done on the Emacs side here, so
I'm closing this bug report.