[Bug 1879087] Re: dbus errors, frequent roaming and unstable connectivity

[Sebastien Bacher]

>> the roaming events should not be too frequent

> That's not an objective test case. Please provide a clear test case
that anyone should be able to follow to determine whether this bug has
been fixed.


I've edited the description to remove this line, the rest of the testcase should be explicit enough. I've also reuploaded including an extra fix so the item is back in the queue and should be ready to be reviewed


** Changed in: wpa (Ubuntu Focal)
       Status: Incomplete => In Progress

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Title:
  dbus errors, frequent roaming and unstable connectivity

Status in wpa package in Ubuntu:
  Fix Released
Status in wpa source package in Focal:
  In Progress

Bug description:
  * Impact
  extra roaming events are been generated

  * Test case
  check the output of `journalctl -lu wpa_supplicant`, it shouldn't have those warnings
  dbus: wpa_dbus_property_changed: no property RoamComplete in object /fi/w1/wpa_supplicant1/Interfaces/3

  the roaming events should not be too frequent

  * Regression potential
  check that wifi connection keep working correctly

  --------------

  When using this version of wpa_supplicant with my company
  WPA2-Enterprise wireless setup, I'm experiencing far too frequent
  roaming events (even when not moving around) accompanied by hiccups in
  connectivity. I also see these messages in the wpa_supplicant log:

  dbus: wpa_dbus_property_changed: no property RoamComplete in object /fi/w1/wpa_supplicant1/Interfaces/3
  dbus: wpa_dbus_property_changed: no property RoamTime in object /fi/w1/wpa_supplicant1/Interfaces/3
  dbus: wpa_dbus_property_changed: no property SessionLength in object /fi/w1/wpa_supplicant1/Interfaces/3

  Having done a little research, at least the dbus errors seem to be
  fixed by this commit upstream:

  https://w1.fi/cgit/hostap/commit/wpa_supplicant/dbus/dbus_new.c?id=23d87687c2428f3b94865580b0d33e05c03e6756

  So I built a version of wpa_supplicant including this particular patch
  and installed on my machine. Apart from solving the dbus errors
  completely, it seems to have had a positive impact on the frequent
  roaming and unstable connectivity as well (I've run for a day with no
  burst of roaming events at all, where they used to happen every few
  minutes most of the time.)

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: wpasupplicant 2:2.9-1ubuntu4
  ProcVersionSignature: Ubuntu 5.4.0-31.35-generic 5.4.34
  Uname: Linux 5.4.0-31-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: GNOME
  Date: Sat May 16 16:47:27 2020
  InstallationDate: Installed on 2020-05-12 (4 days ago)
  InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
  SourcePackage: wpa
  UpgradeStatus: No upgrade log present (probably fresh install)

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