bug#35550: Installer: wpa_supplicant fails to start

["Ludovic Courtès" <ludo@gnu.org>]

Hello,

I’ve been able to test it on the bare metal as well and I confirm: I
booted the install image a few times and the ‘wpa-supplicant’ service
would be stopped every time, with a dangling ‘wpa_supplicant’ process
running.  Given that this seems to be systematic, I’m not sure my PID
file atomicity hypothesis explains everything.

I’ve tried running:

  pkill wpa_supplicant
  while herd start wpa-supplicant ; do herd stop wpa-supplicant ; done

and that always works (i.e., no “failed to start ‘wpa-supplicant’”
error.)

If I run in parallel this:

  while touch /var/run/wpa_supplicant.pid ; do : ; done

then it occasionally “fails to start”, but not very often.

To be continued…

Ludo’.