Bug#826510: systemctl: using "isolate" is too brutal and kills processes

[nsa spy]

Package: systemd
Version: 215-17+deb8u4
Severity: normal

dear maintainer,

systemctl: using "isolate" is too brutal and kills processes

in "systemctl" command subcommand "isolate" is doing something unwanted.
"isolate" kills processes and restarts them like networking (something in it) 
and TTYs which are unwanted functions. there is three possible suggestions to 
rectify these. a) making isolate less brutal, meaning it doesn't kill and restart 
processes which are going to be on in new runlevel. b) proposing new subcommand 
"approach" which switches runlevel without restarting processes which are going 
to be on in new runlevel. c) which is less recommended is using option 
"IgnoreOnIsolate=yes" on systemd settings to prevent restarts on key processes. 

this bug is reported in upstream already but i send it anyway if there is 
debian specific issues here.
https://github.com/systemd/systemd/issues/2607

earlier bug i reported.
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=801562



-- Package-specific info:

-- System Information:
Debian Release: 8.5
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.5.0-0.bpo.2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages systemd depends on:
ii  acl             2.2.52-2
ii  adduser         3.113+nmu3
ii  initscripts     2.88dsf-59
ii  libacl1         2.2.52-2
ii  libaudit1       1:2.4-1+b1
ii  libblkid1       2.25.2-6
ii  libc6           2.19-18+deb8u4
ii  libcap2         1:2.24-8
ii  libcap2-bin     1:2.24-8
ii  libcryptsetup4  2:1.6.6-5
ii  libgcrypt20     1.6.3-2+deb8u1
ii  libkmod2        18-3
ii  liblzma5        5.1.1alpha+20120614-2+b3
ii  libpam0g        1.1.8-3.1+deb8u1+b1
ii  libselinux1     2.3-2
ii  libsystemd0     215-17+deb8u4
ii  mount           2.25.2-6
ii  sysv-rc         2.88dsf-59
ii  udev            215-17+deb8u4
ii  util-linux      2.25.2-6

Versions of packages systemd recommends:
ii  dbus            1.8.20-0+deb8u1
ii  libpam-systemd  215-17+deb8u4

Versions of packages systemd suggests:
pn  systemd-ui  <none>

-- no debconf information