Bugs with execline/s6 documentation and skalibs functions using posix_spawn()

From: Casper Ti. Vector <caspervector_at_gmail.com>
Date: Tue, 27 Jun 2023 10:16:10 +0800

* In `trap.html', there is a reference to the removed `timeout' keyword.

* In `s6-svscan-not-1.html', the systemd unit (traumatic experience with
  it, as you may easily expect) lacks a `KillMode = process'.

* The child_spawn*() family of functions, depending on using posix_spawn
  or not, exhibit different behaviours on CentOS 7 (trauma again), as
  posix_spawnp() may return 0 with argv pointing to unexecutable paths.
  This, for example, results in s6-svscan not exiting on SIGTERM when
  .s6-svscan/SIGTERM is absent. The behaviour of posix_spawnp() on
  CentOS 7 does not conform to posix_spawn(3p), but is documented in
  posix_spawn(3): "Even when these functions return a success status,
  the child process may still fail for a plethora of reasons related to
  its pre-exec() initialization. In addition, the exec(3) may fail."

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Received on Tue Jun 27 2023 - 04:16:10 CEST

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