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[Launchpad Bug Tracker <1480877@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package network-manager - 1.0.4-0ubuntu4

---------------
network-manager (1.0.4-0ubuntu4) wily; urgency=medium

  [ Mathieu Trudel-Lapierre ]
  * d/p/0001-wwan-add-support-for-using-oFono-as-a-modem-manager.patch:
    Pre-initialize reason for ofono state changes to NULL; this avoids getting
    to nm_device_set_state with an invalid reason string. (LP: #1499906)
  * d/p/0001-wwan-add-support-for-using-oFono-as-a-modem-manager.patch:
    cleanup ip_string_to_network_address() to work as its NMModemBroadband
    version, and start setting NM_MODEM_IP4_METHOD to _STATIC so IP, prefix,
    gateway and DNS get properly applied on an oFono modem as it comes up.
  * debian/NetworkManager.conf: re-enable the ofono plugin (fixes a regression).
  * debian/patches/add_ofono_settings_support.patch: don't link against
    libnm-glib as this would cause type duplication and crashes. (LP: #1499904)
  * debian/patches/lp1496434_warn_on_invalid_new_link.patch: don't outright
    crash by dereferencing a NULL pointer if a device can't get created by its
    NMDeviceFactory; we should warn though, as we want to know about these
    failures; but no need to make all of NM sad. (LP: #1496434)

  [ Tony Espy ]
  * d/p/0002-wifi-cull-the-scan-list-before-signalling-ScanDone-b.patch:
    Fix duplicate 'LastSeen' PropertiesChanged signals being generated
    after every scan. The 'Last-Seen' property is now only updated when
    a scan finishes, and schedule_scanlist_cull is no longer triggered
    new_bss_cb or updated_bss_cb. (LP: #1480877)
  * d/p/add_ofono_settings_support.patch: Fix memory leaks in plugin.
  * d/p/add_ofono_settings_support.patch: Remove unused plugin DBus code.
  * d/p/CVE-2015-1322.patch: Drop CVE which applied to removed DBus code
    in ofono settings plugin.

 -- Mathieu Trudel-Lapierre <mathieu-tl@xxxxxxxxxx>  Sat, 26 Sep 2015
00:02:02 -0400

** Changed in: network-manager (Ubuntu)
       Status: In Progress => Fix Released

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2015-1322

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https://bugs.launchpad.net/bugs/1480877

Title:
  Access points' "PropertiesChanged" dbus signals freeze UI on mobile
  devices

Status in Canonical System Image:
  In Progress
Status in indicator-network package in Ubuntu:
  Incomplete
Status in location-service package in Ubuntu:
  Incomplete
Status in network-manager package in Ubuntu:
  Fix Released
Status in network-manager package in Ubuntu RTM:
  Fix Committed

Bug description:
  Krillin, rc-proposed, r83

  
  DESCRIPTION:
  I've been trying to track down the cause of the occasional UI freezes on my Krillin device, and I noticed that whenever the UI freezes for 2-4 seconds, I get a burst of "PropertiesChanged" signals in dbus-monitor

  Here's a log of what's shown in dbus-monitor:
  http://pastebin.ubuntu.com/11992322/

  I'd guess the problem is in the code that actually catches the signals
  and acts accordingly.

  HOW TO REPRODUCE: 
  1) Move to a place where many wifi hotspots are available
  2) Connect the device via USB and run "phablet-shell" and then "dbus-monitor"
  3) Use the device while keeping an eye on dbus-monitor output

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