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[Bug 875632] Re: When http_proxy is unreachable, banshee spins 200% cpu (and may lock entire system if unlucky, requiring unclean reboot)

 

Ubuntu One Music Store seems to work with incorrect proxy.
However, this update breaks Miro Guide and Amazon MP3 Store plugins - CPU usage is up to 100% and these plugins are unusable.

banshee --debug ouput after clicking on Amazon Store:
Exception in Gtk# callback delegate
  Note: Applications can use GLib.ExceptionManager.UnhandledException to handle the exception.
System.NullReferenceException: Object reference not set to an instance of an object
  at Banshee.WebSource.WebSource.Activate () [0x00000] in <filename unknown>:0 
  at Banshee.Sources.SourceManager.SetActiveSource (Banshee.Sources.Source source, Boolean notify) [0x00000] in <filename unknown>:0 
  at Banshee.Sources.SourceManager.SetActiveSource (Banshee.Sources.Source source) [0x00000] in <filename unknown>:0 
  at Banshee.Sources.Gui.SourceView.OnButtonPressEvent (Gdk.EventButton press) [0x00000] in <filename unknown>:0 
  at Gtk.Widget.buttonpressevent_cb (IntPtr widget, IntPtr evnt) [0x00000] in <filename unknown>:0 
   at GLib.ExceptionManager.RaiseUnhandledException(System.Exception e, Boolean is_terminal)
   at Gtk.Widget.buttonpressevent_cb(IntPtr widget, IntPtr evnt)
   at Gtk.Application.gtk_main()
   at Gtk.Application.Run()
   at Banshee.Gui.GtkBaseClient.Run()
   at Banshee.Gui.GtkBaseClient.Startup()
   at Hyena.Gui.CleanRoomStartup.Startup(Hyena.Gui.StartupInvocationHandler startup)
   at Banshee.Gui.GtkBaseClient.Startup()
   at Banshee.Gui.GtkBaseClient.Startup(System.String[] args)
   at Nereid.Client.Main(System.String[] args)
   at System.AppDomain.ExecuteAssembly(System.AppDomain , System.Reflection.Assembly , System.String[] )
   at System.AppDomain.ExecuteAssemblyInternal(System.Reflection.Assembly a, System.String[] args)
   at System.AppDomain.ExecuteAssembly(System.String assemblyFile, System.Security.Policy.Evidence assemblySecurity, System.String[] args)
   at System.AppDomain.ExecuteAssembly(System.String assemblyFile)
   at Booter.Booter.BootClient(System.String clientName)
   at Booter.Booter.Main()

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https://bugs.launchpad.net/bugs/875632

Title:
  When http_proxy is unreachable, banshee spins 200% cpu (and may lock
  entire system if unlucky, requiring unclean reboot)

Status in Banshee Music Player:
  Fix Released
Status in “banshee” package in Ubuntu:
  In Progress
Status in “banshee” source package in Oneiric:
  Fix Committed
Status in “banshee” source package in Precise:
  In Progress

Bug description:
  System Settings -> Network -> Network proxy
  You can set e.g. "localhost", port "9090", assuming you're not running any service on that port.

  Now run Banshee, and attempt to use the Online Media->Internet
  Archive.

  Banshee will stop responding to any input, and go into an infinite
  loop (on at least two different threads).

  It is possible to reproduce situations where Banshee will hang while a
  context menu is open.  It is then not possible to switch to a
  different application.  An inexperienced user would be forced to hard-
  reboot the machine, which could cause data loss.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: banshee 2.2.0-1ubuntu2
  ProcVersionSignature: Ubuntu 2.6.38-11.50-generic 2.6.38.8
  Uname: Linux 2.6.38-11-generic x86_64
  ApportVersion: 1.23-0ubuntu3
  Architecture: amd64
  Date: Sun Oct 16 11:29:30 2011
  ProcEnviron:
   PATH=(custom, user)
   SHELL=/bin/bash
  SourcePackage: banshee
  UpgradeStatus: Upgraded to oneiric on 2011-10-14 (2 days ago)

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References