Here's a new version of the patch with all the access-point related signals removed.
It makes no sense for any of this logic to be present in our system, as none of our code attempts to control the network configuration via Bearer Mgmt. With this patch, the plugin will never receive any NM access-point related signals, and therefore it'll never populate it's access point list. Also, as pointed out in other comments, the bearer plugin includes blocking DBus calls that are made in response to every single 'PropertiesChanged' signal sent for an access point, which causes a ripple of DBus traffic every time a scan occurs. @Lorn, if you could look over my patch, I'd appreciate it. It'd be also nice to get some testing from @faenil and @mterry before we push forward with landing plans. I've confirmed that the CPU spikes in the dbus daemon go away completely with the changes. That said, it'd be good to get some independent results. Until we have a silo prep'd for Qt, you can just install the libqt5network5_5.4.1+dfsg-2ubuntu10~awe16_armhf.deb from my PPA: https://launchpad.net/~awe/+archive/ubuntu/ppa/+packages You also probably want to install dbus-cpp and location-services from: https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu/landing-026 The status of the location-service silo says it needs a rebuild, but the packages in the PPA should be OK for testing. If you have any questions, ask before you install anything. ** Patch added: "New version of QtBase network bearer plugin" https://bugs.launchpad.net/ubuntu-rtm/+source/location-service/+bug/1480877/+attachment/4523258/+files/net-bearer-nm-disconnect-ap-signals2.patch -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to qtbase-opensource-src in Ubuntu. https://bugs.launchpad.net/bugs/1480877 Title: Access points' "PropertiesChanged" dbus signals freeze UI on mobile devices Status in Canonical System Image: Confirmed Status in Unity 8: New Status in dbus-cpp package in Ubuntu: In Progress Status in indicator-network package in Ubuntu: Incomplete Status in network-manager package in Ubuntu: Incomplete Status in qtbase-opensource-src package in Ubuntu: In Progress Status in buteo-syncfw package in Ubuntu RTM: New Status in location-service package in Ubuntu RTM: In Progress Status in maliit-framework package in Ubuntu RTM: New Status in network-manager package in Ubuntu RTM: Incomplete Status in sync-monitor package in Ubuntu RTM: New 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 To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1480877/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
