[Bug 1981109] [NEW] server image pulls in ModemManager via fwupd, consumes 25MiB RAM in every container

[Steve Langasek]

Public bug reported:

Looking at memory utilization in a pristine Ubuntu lxd container (top -o
RES), I see that ModemManager is running, which I was surprised to see
is present at all in the stock image.

Tracking this I find that fwupd depends on libmm-glib0, which in turn
Recommends: modemmanager.

Libraries in general should not recommend daemons, so it's possible this
should be fixed by libmm-glib0 dropping this Recommends.  It certainly
doesn't seem to be a deliberate decision by the Server Team to have
modemmanager installed and running by default on all systems.

** Affects: fwupd (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: modemmanager (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: ubuntu-meta (Ubuntu)
     Importance: Undecided
     Assignee: Ubuntu Server (ubuntu-server)
         Status: New


** Tags: rls-kk-incoming

** Also affects: fwupd (Ubuntu)
   Importance: Undecided
       Status: New

** Also affects: modemmanager (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: ubuntu-meta (Ubuntu)
     Assignee: (unassigned) => Ubuntu Server (ubuntu-server)

** Tags added: rls-kk-incoming

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to ubuntu-meta in Ubuntu.
https://bugs.launchpad.net/bugs/1981109

Title:
  server image pulls in ModemManager via fwupd, consumes 25MiB RAM in
  every container

Status in fwupd package in Ubuntu:
  New
Status in modemmanager package in Ubuntu:
  New
Status in ubuntu-meta package in Ubuntu:
  New

Bug description:
  Looking at memory utilization in a pristine Ubuntu lxd container (top
  -o RES), I see that ModemManager is running, which I was surprised to
  see is present at all in the stock image.

  Tracking this I find that fwupd depends on libmm-glib0, which in turn
  Recommends: modemmanager.

  Libraries in general should not recommend daemons, so it's possible
  this should be fixed by libmm-glib0 dropping this Recommends.  It
  certainly doesn't seem to be a deliberate decision by the Server Team
  to have modemmanager installed and running by default on all systems.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/fwupd/+bug/1981109/+subscriptions