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[Māris Fogels <mfogels@xxxxxxxxx>]

** Attachment added: "Debug log with crash tracebacks"
   https://bugs.launchpad.net/bugs/877016/+attachment/2556074/+files/banshee-crash-debug-log.txt

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https://bugs.launchpad.net/bugs/877016

Title:
  Banshee freezes on startup, multiple cpus at 100%

Status in “banshee” package in Ubuntu:
  New

Bug description:
  The Banshee application freezes just seconds after application
  startup, putting all four(!) of my laptop's cpus at 95% usage.

  The only way to shut down the application is to 'Force Quit'.

  I ran banshee from the command line with 'banshee --debug' and have
  attached the complete application logs.  The logs contain the
  following two exception tracebacks at the end:

  ** (Banshee:8620): WARNING **: Error calling get_info: Traceback (most recent call last):
    File "/usr/lib/python2.7/dist-packages/dbus/service.py", line 702, in _message_cb
      retval = candidate_method(self, *args, **keywords)
    File "/usr/lib/python2.7/dist-packages/ubuntuone-client/ubuntuone/platform/linux/dbus_interface.py", line 1041, in get_info
      return self.syncdaemon_folders.get_info(path)
    File "/usr/lib/python2.7/dist-packages/ubuntuone-client/ubuntuone/syncdaemon/interaction_interfaces.py", line 640, in get_info
      mdobj = self.fs.get_by_path(path.encode('utf-8'))
    File "/usr/lib/python2.7/dist-packages/ubuntuone-client/ubuntuone/syncdaemon/filesystem_manager.py", line 778, in get_by_path
      mdid = self._idx_path[path]
  KeyError: '/home/mars/.ubuntuone/Purchased from Ubuntu One'

  
  ** (Banshee:8620): CRITICAL **: syncdaemon_folder_info_get_subscribed: assertion `SYNCDAEMON_IS_FOLDER_INFO (finfo)' failed
  ** (Banshee:8620): DEBUG: Loading the real store page

  ** (Banshee:8620): WARNING **: Error rescanning Purchased Music: No
  such file or directory

  (Banshee:8620): GLib-CRITICAL **: g_str_has_prefix: assertion `str != NULL' failed
  [1 Debug 21:06:21.157] U1MS: Url Loaded: 
  Marshaling url-loaded signal
  Exception in Gtk# callback delegate
    Note: Applications can use GLib.ExceptionManager.UnhandledException to handle the exception.
  System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NullReferenceException: Object reference not set to an instance of an object
    at Banshee.UbuntuOneMusicStore.UbuntuOneMusicStoreSource.OnDefaultStoreUrlLoaded (System.Object o, UbuntuOne.UrlLoadedArgs args) [0x00000] in <filename unknown>:0 
    at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
    at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0 
    --- End of inner exception stack trace ---
    at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0 
    at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) [0x00000] in <filename unknown>:0 
    at System.Delegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in <filename unknown>:0 
    at System.MulticastDelegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in <filename unknown>:0 
    at System.Delegate.DynamicInvoke (System.Object[] args) [0x00000] in <filename unknown>:0 
    at GLib.Signal.ClosureInvokedCB (System.Object o, GLib.ClosureInvokedArgs args) [0x00000] in <filename unknown>:0 
    at GLib.SignalClosure.Invoke (GLib.ClosureInvokedArgs args) [0x00000] in <filename unknown>:0 
    at GLib.SignalClosure.MarshalCallback (IntPtr raw_closure, IntPtr return_val, UInt32 n_param_vals, IntPtr param_values, IntPtr invocation_hint, IntPtr marshal_data) [0x00000] in <filename unknown>:0 
     at GLib.ExceptionManager.RaiseUnhandledException(System.Exception e, Boolean is_terminal)
     at GLib.SignalClosure.MarshalCallback(IntPtr raw_closure, IntPtr return_val, UInt32 n_param_vals, IntPtr param_values, IntPtr invocation_hint, IntPtr marshal_data)
     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()
  Killed

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: banshee 2.2.0-1ubuntu2
  ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
  Uname: Linux 3.0.0-12-generic x86_64
  ApportVersion: 1.23-0ubuntu3
  Architecture: amd64
  Date: Mon Oct 17 21:29:14 2011
  ExecutablePath: /usr/lib/banshee/Banshee.exe
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110915.1)
  InterpreterPath: /usr/bin/mono
  ProcEnviron:
   SHELL=/bin/bash
   PATH=(custom, user)
   LANG=en_CA.UTF-8
   LANGUAGE=en_CA:en
  SourcePackage: banshee
  UpgradeStatus: No upgrade log present (probably fresh install)

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