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Message #141876
[Bug 1480877] Re: Access points' "PropertiesChanged" dbus signals freeze UI on mobile devices
This bug was fixed in the package network-manager 0.9.10.0-4ubuntu15.1.8
in https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu/stable-
phone-overlay
---------------
network-manager (0.9.10.0-4ubuntu15.1.8) vivid; urgency=medium
* d/p/0002-wifi-cull-the-scan-list-before-signalling-ScanDone-b.patch:
Fix duplicate 'LastSeen' PropertiesChanged signals being emitted
after scanning (LP: #1480877).
* d/p/fix-ofono-plugin-leaks.patch: fix memory leaks in the ofono
settings plugin.
* d/p/rm-scofono-plugin-dbus.patch: Remove unused plugin DBus code.
* d/p/CVE-2015-1322.patch: Drop CVE which applied to removed DBus code
in ofono settings plugin.
-- Tony Espy <espy@xxxxxxxxxxxxx> Fri, 02 Oct 2015 10:54:24 -0400
** Changed in: network-manager (Ubuntu RTM)
Status: Fix Committed => Fix Released
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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:
Fix Committed
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 Released
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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References