Ubuntu
network-manager package

  1. Bug #1733321
  2. Comment #2

Comment 2 for bug 1733321

Revision history for this message
Kleber Sacilotto de Souza (kleber-souza) wrote :

The issue seems to be related somehow to systemd's systemd-rfkill.service. When fake-rfkill is loaded, the following message are logged on syslog:

Nov 21 17:00:32 autopkgtest NetworkManager[1044]: <info> [1511283632.4948] rfkill13: found WiFi radio killswitch (at /sys/devices/virtual/rfkill/rfkill13) (driver (unknown))
Nov 21 17:00:32 autopkgtest kernel: [ 2970.858563] query test rfkill
Nov 21 17:00:32 autopkgtest kernel: [ 2970.858566] set test rfkill (active)
Nov 21 17:00:32 autopkgtest systemd[1]: Starting Load/Save RF Kill Switch Status...
Nov 21 17:00:38 autopkgtest kernel: [ 2976.544106] poll test rfkill
Nov 21 17:00:43 autopkgtest kernel: [ 2981.407971] poll test rfkill
Nov 21 17:00:48 autopkgtest kernel: [ 2986.527817] poll test rfkill
Nov 21 17:00:53 autopkgtest kernel: [ 2991.391678] poll test rfkill
Nov 21 17:00:58 autopkgtest kernel: [ 2996.511538] poll test rfkill
Nov 21 17:01:02 autopkgtest systemd[1]: systemd-rfkill.service: Start operation timed out. Terminating.
Nov 21 17:01:02 autopkgtest systemd[1]: Failed to start Load/Save RF Kill Switch Status.
Nov 21 17:01:02 autopkgtest systemd[1]: systemd-rfkill.service: Unit entered failed state.
Nov 21 17:01:02 autopkgtest systemd[1]: systemd-rfkill.service: Failed with result 'timeout'.
Nov 21 17:01:03 autopkgtest kernel: [ 3001.375390] poll test rfkill
Nov 21 17:01:08 autopkgtest kernel: [ 3006.495239] poll test rfkill
Nov 21 17:01:12 autopkgtest kernel: [ 3011.136564] query test rfkill
Nov 21 17:01:12 autopkgtest kernel: [ 3011.136566] set test rfkill (blocked)
Nov 21 17:01:12 autopkgtest systemd[1]: Starting Load/Save RF Kill Switch Status...
Nov 21 17:01:12 autopkgtest NetworkManager[1044]: <info> [1511283672.8246] manager: rfkill: WiFi now disabled by radio killswitch
Nov 21 17:01:12 autopkgtest systemd[1]: Started Load/Save RF Kill Switch Status.

And the call to 'mcli radio wifi' intermittently fails to report that the device is disabled after the call to 'rfkill block $fake_id'.

Stopping systemd-rfkill.socket and systemd-rfkill.service units seems to work around the issue since I can't reproduce the issue when they are stopped.

As an additional note, I cannot reproduce the issue on the ppc64el host, only on the qemu/kvm guest.